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Pest Control – Understanding the Different Types of Pests
Pests can damage structures, threaten human and animal health, and contaminate food. Hiring a pest control company can help lower these risks. Contact Pezz Pest Control now!
Correct pest identification is necessary for an effective pest control program. Certain geographic features, such as mountains and large bodies of water, restrict pest movement.
Resistant varieties of plants, animals and woods can keep pest populations below damaging levels. Pheromones can also be used as a control tool.
Pest Identification
Correct pest identification is a necessary first step in any effective integrated pest management (IPM) program. Identification can be done visually or by trapping and scouting for insects, mollusks, weeds, vertebrates, or microscopic organisms such as nematodes and pathogens. Incorrect identification can result in selecting inappropriate control tactics, which can cost time and money as well as expose people or the environment to unnecessary risks.
For IPM programs, monitoring of pest populations is conducted to determine whether damage occurs or pest numbers reach threshold levels that require control. Monitoring pests can also include examining environmental conditions such as temperature and humidity, which may affect population growth or increase the susceptibility of crops or collections to a given pest.
Field scouting is often the most important monitoring tool for pests in a crop. Monitoring methods vary by pest type, but scouting generally involves walking through the field and looking for signs of infestation. Scouting early in the season and concentrating sampling in fields where pests have historically occurred tends to detect pests before they reach damaging numbers or spread.
Insect identification is usually based on the order to which an insect belongs, such as Lepidoptera or Coleoptera. However, a more detailed level of identification is required for use of some biological insecticides, such as Bacillus thuringiensis products that work on a specific insect order or species like Chrysanthemum leafminer (Liriomyza trifolii).
Once monitoring, identification, and action thresholds indicate that pest control is needed, IPM programs evaluate the proper control method both for effectiveness and risk. Less-risky controls, such as pheromones to interrupt mating or mechanical and physical control, are considered before the application of more-potent chemicals, such as insecticides or herbicides.
If you are unsure of the identification of a pest, contact your local County Extension Service or a pest control professional. Many of these professionals have experience with a wide variety of pests and can assist in proper identification as well as develop an effective treatment strategy. Other options for identifying pests include the Internet and various pest identification guides. Some of these guides are free, while others require payment for a subscription.
Prevention
Prevention is a proactive approach to pest control that focuses on denying pests the things they need to thrive. It includes sanitation and cleaning practices, sealing entry points and eliminating attractants like food sources. It also includes regular inspections and monitoring. The goal of preventative pest management is to reduce reliance on, and the associated risks of, chemical pesticides. This is sometimes called integrated pest management (IPM).
Pests can pose a health threat to humans and pets. Many carry disease-causing pathogens, allergens and toxins. They can also cause damage to wood, fabric, wires and personal items. Pests can also create unpleasant odors and stain or discolor surfaces.
Insects are the most common pests that pest control companies deal with. These include ants, cockroaches, bed bugs and fleas. Rodents are another frequent pest problem that pest control professionals deal with. Other insects that are problematic include silverfish, earwigs and millipedes. Fungus and molds are often considered to be pests, as well.
Keeping a home or business free of pests can help preserve its value, and it can also protect the people living there from a variety of threats. Pests can carry and spread disease-causing pathogens, allergens or toxins, and they can damage property with their burrowing and chewing habits. They can also damage wood, fabrics and other items in homes and offices.
Physical pest control measures, such as traps and baits, are often used to remove pests once they are present. However, this is only effective in the short term and it may not prevent future infestations. Preventative pest control, on the other hand, can be more long-lasting.
It can involve sealing the smallest cracks and crevices that pests might use to gain entry into buildings. It can also include ensuring that garbage receptacles are securely closed, and that landscaping is maintained in ways that doesn’t encourage pest pathways. Regular inspections by pest management professionals can identify and resolve problems early.
In addition, a preventive pest management plan might include the introduction of natural enemies to a targeted pest population. These might include parasites, predators or other organisms that will feed on or attack the pests. The goal of biological pest control is to increase the number of natural enemies so that the level of pests in an area declines without the need for any chemical treatments.
Treatment
Pest control is a practice that seeks to manage the presence of different types of pests in order to minimise the impact they have on our lives and the wider environment. Pests can cause disease, damage property and disrupt food chains or habitats. They can also frighten or upset people, for example by their fierce, scary or grotesque appearance (like spiders, silverfish and earwigs) or by biting, stinging or scratching (like fleas, cockroaches and cluster flies).
Pesticides are often used to kill or repel pests. Some pesticides are sprayed onto surfaces, whilst others are injected or poured into spaces. There are also a number of ‘non-chemical’ pest control methods that can be used, such as traps and baits, to discourage or kill pests and their offspring.
It is important to know that pesticides can be dangerous, especially to children and pets. Therefore, if you choose to use pesticides yourself, make sure you do your research and select the right product for your needs. If you are hiring someone to apply chemicals on your behalf, be sure they have a pest control licence and always follow their advice carefully.
Regular inspections by a professional can help you to identify and monitor pest problems, allowing them to be managed before they become a major issue. Typically, scouting (searching for and identifying pests) or trapping will be conducted to determine how many pests are present and what damage they have caused. Monitoring usually takes place on a routine basis, such as weekly or monthly for insect and insect-like pests, fortnightly or bi-monthly for mollusks, and weekly for weeds.
Sanitation practices can reduce the number of pests by removing their food sources or hiding places. These include improving rubbish collection, cleaning up spills and removing waste material from outdoor areas, and preventing water leaks in buildings and structures. The use of clean seeds and transplants can also reduce the carryover of pests between crops. Control of pests in livestock and agricultural situations can be achieved by careful management of manure, reducing feed waste, and decontaminating equipment before moving it from one area to another.
Eradication
Eradication is the elimination of a pest population to the point that it can no longer recolonize an area. It can be accomplished through the use of natural enemies such as parasites, predators and pathogens; or by introducing enemies that were not present in the area before, such as insects repelled by pheromones and hormones. Eradication may also be achieved by altering the environment to make it less suitable for the pest, such as by eliminating habitats or destroying the food supply that it needs to survive.
A number of factors influence the success of eradication campaigns, including reaction time, the extent and spatial structure of the infested area and the implementation of critical sanitary measures. The probability of successful eradication was significantly higher when the campaign was initiated within 11 months after the first sighting, and for outbreaks in man-made habitats, e.g. greenhouses, a high level of eradication was achieved (Terminal Node 2). Eradication campaigns were more likely to be successful at local rather than at regional or international scales. This is likely a result of the fact that control efforts can be more efficiently coordinated at local scales.
Whether to implement an eradication program or a suppression strategy depends on the amount of damage caused by the pest, the cost and difficulty of eradicating it, and the value of not having it around. The cost of future infections and vaccinations is projected forward, and these values are discounted to give an estimate of the “dividend” that eradication would provide. If this dividend is greater than the costs of eradication, it would be considered a sound investment to eradicate the pest.
Some invasive foreign plants are exceptionally detrimental to agriculture and to wildlands. These include weeds that overrun fields and pastures, and those that invade forests, riparian corridors, estuaries and other natural areas. In California, for example, a special eradication program has targeted these noxious weeds that taint hay and other crops and rob the native vegetation of nutrients.
Eradication is difficult, and most attempts fail. Some reasons for failure include the speed at which a pest breeds, the difficulty of monitoring an infestation, policy and funding issues that slow the response to an outbreak, and insufficient knowledge about the biology and ecology of the pest.
Pest Solutions For Your Home
The home is where most people sleep at night and one of the biggest financial investments many will make in their lifetime. Your home deserves protection from pests that can cause damage, spread disease, and spoil food.
Preventative steps, such as removing food sources, sealing entry points, cleaning and decluttering, and fixing leaky plumbing, are the first steps in pest control. Click the https://www.apexpestky.com/ to learn more.
Before implementing a pest management strategy, accurately identifying the pest species you are dealing with is important. This will help you decide if pest control is necessary and the most appropriate treatment. Incorrect identification of a pest may lead to unnecessary chemical applications that will only cause more problems than they will solve.
Their droppings or characteristic damage can often identify pests to the plants that they consume. A close examination of the damage can also provide valuable clues as to what species is responsible for the problem, which can narrow down your list of possible suspects. Many of these critters also carry diseases that can pose a health risk to those who come into contact with them, and the sooner you know which pest is infesting your facility, the quicker you can take steps to eradicate it.
Some pests look very similar to one another throughout the course of their life cycle, making it difficult to tell them apart by appearance alone. This makes it important to look for other characteristics that distinguish one pest from another, such as their behavior, feeding habits, egg laying methods and reproductive stages. It is especially crucial to be able to identify a pest species to order, as certain biological insecticides like Bacillus thuringiensis are only effective against specific orders of insects.
Performing regular insect scouting can help you to get familiar with the patterns of your pest population. Knowing what they prefer to eat and when they are most active will allow you to detect them before their numbers build to damaging levels and prevent them from becoming resistant to sprays.
It is also a good idea to check for entry points into your facilities. This can include cracks, gaps and crevices around doors, windows, vents and utility lines. Use caulk or expanding foam to seal these openings. Be sure to look for any potential nesting areas where these pests are hiding, as they can lay eggs in the smallest of spaces. If you are unable to identify the pests that are infesting your facility, consider calling in a professional pest control company to help you out.
Pest Prevention
A pest infestation can be devastating for homeowners. Pests cause health issues for family members, damage furniture and clothes, contaminate food, and can start fires by chewing through wires. Rather than trying to treat an existing pest problem, it’s important for families to take proactive steps to prevent pests.
The most effective method of preventing pests is to remove their sources of food, water and shelter. Store food in containers with tight lids and keep garbage cans tightly covered. Clean out sheds, closets and storage areas regularly to keep pests from nesting in these inconspicuous places.
In commercial facilities, developing and adhering to a Master Sanitation Schedule is one way of maintaining cleanliness. This includes cleaning all interior surfaces that pests could find attractive, such as floors, walls and ceilings. In addition, a facility should maintain its structural integrity and not allow leaks to develop that could attract pests.
Conducting regular, thorough visual inspections can also help prevent pest problems. A trained pest professional can use data from traps and monitors to guide the scope of an inspection. For example, rodent activity in traps or high numbers of stored product pests in pheromone monitors should trigger a more thorough inspection of that area.
For residential properties, close attention should be paid to exterior windows and doors. These are the most common entry points for pests. Seal any cracks or openings that may be large enough to support pests, such as around window frames, and apply caulking or weather stripping to any gaps. Examine each external door, including roller doors, to ensure there is no gap underneath it where a pest can crawl inside.
The outside of a home should be free of clutter and wood piles that can provide rodents and spiders with hiding spots. It’s also a good idea to trim tree limbs and shrubs away from the house, as these can be used for highways of access to the roofline and the foundation. It’s recommended that a homeowner install gutter guards to prevent debris from collecting in the gutter and blocking the flow of rainwater.
Pest Control
Pest control is the elimination or management of unwanted creatures such as rodents, cockroaches, bed bugs and spiders. Pests can cause damage to plants, crops, and property, such as buildings or structures. Proper identification is the first step in pest control. Pests can be prevented by examining areas that provide shelter, food and water, or that support the pests’ life cycle, and by checking for signs of infestation such as muddy trails, gnawed wood or insect tunnels in wood. It is also important to inspect a facility regularly for possible points of entry by pests, such as windows, doorways, vents and cracks in walls.
If prevention is not possible, monitoring is the next step in pest control. Monitoring is the process of checking for pests and evaluating the population levels, abundance and damage caused by the pests. This information helps in the determination of whether a pest can be tolerated or if control measures are necessary. Monitoring also provides vital information on which control methods to use and when to use them.
Pests can be controlled through a number of means, including physical removal, chemical controls, and biological controls. Biological controls include using predators, parasitoids, and pathogens to prevent or destroy pest populations. These methods may be used alone or in combination with other control methods.
Chemical controls include the use of pesticides. Pesticides are highly effective in controlling many common pests; however, they must be used responsibly to minimize risks to people and the environment. When selecting a pesticide, read the label carefully and follow instructions and warnings to ensure proper application and safe handling.
Mechanical controls, such as traps, screens, barriers and fences, are often used to prevent pests from entering a field, landscape or building. Altering the environmental conditions, such as temperature, lighting or humidity can also be used to control some pests. For example, using a dehumidifier to reduce moisture in the soil can help control some insects and diseases. Microbial pesticides, such as Bacillus thuringiensis or Bt, are also available and have the advantage of being safer to humans than traditional chemicals.
Pesticides
Pesticides are substances that prevent, destroy, repel or mitigate pests. They can be found in many forms, including liquids, gases and vapors. These chemicals can be sprayed onto plants or into the air to control insects, weeds and other organisms that harm landscape features and crops. They are sold in lawn and garden centers, hardware stores and some grocery stores.
When choosing a pesticide, look for the least toxic alternative. Always read and follow label directions. Avoid mixing pesticides, which can result in unpredictable reactions and increased toxicity that could harm humans, pets or wildlife. Never apply more pesticide than the label recommends. Excessive use wastes money, time and energy, while increasing the likelihood of plant injury and environmental contamination.
The type of pesticide to use depends on the cause of the problem. The most common pesticides are herbicides, insecticides and fungicides. A herbicide kills only the target plant; an insecticide kills only insects, weeds or rodents; and a fungicide kills molds.
Before applying a pesticide, increase ventilation in the treatment area and move people and pets away from the site until it is safe to return. Wear protective clothing, masks or respirators as directed on the label. When spraying, keep the solution away from electric outlets and switches since it can conduct electricity.
Many people are exposed to low levels of pesticide residues in their homes, schools, workplaces and other facilities. Some people may have a more acute response to pesticide exposure than others, especially the elderly, children and those with preexisting medical conditions.
The amount of pesticide residue left behind after an application depends on the rate of application, weather conditions, equipment used and other factors. Strict compliance with the label’s application rates, reentry intervals, safety equipment requirements and aeration periods should leave relatively low levels of residue. Excessive residues may damage desirable plants and leach into groundwater or surface water, contaminating the environment.
The Practices of Pest Control
Pests like rodents, ants and bees can damage your property and spread diseases. Some also carry harmful bacteria that can contaminate food and surfaces in your home, or deteriorate plants.
Columbia MO Pest Control professionals work to minimize pest populations to acceptable levels through scouting, monitoring, suppression and eradication. Whenever possible, they use non-toxic treatments.
The first step in pest control is to prevent the pests from entering your establishment. This can include closing doors, windows and screens. This can also mean inspecting food shipments and preventing rodents from chewing through them. It may involve removing clinging or sticky materials that attract pests like fruit, sweets or discarded pet food. This can also include securing or blocking openings through which pests enter buildings such as holes, cracks and crevices.
Preventing Pests is usually easier than controlling them once they become a problem. Continuous pests are fairly predictable if you know their environmental requirements. Sporadic and potential pests, however, are not always as easy to predict.
Prevention is the most cost effective method of pest control. It includes scouting and monitoring, with correct identification to determine whether pest populations have reached an unacceptable level. This can be done by regular inspections of fields, landscapes, forests, structures and buildings. It can also include regular scouting of residential and commercial outdoor areas by personnel responsible for groundskeeping and maintenance.
Once a pest infestation has been detected, the choice of the most appropriate control method depends on the extent of the problem and how quickly it must be dealt with. Some pests, such as a few wasps at your picnic table, might not require any action and can be tolerated, while an infestation of cockroaches in a restaurant kitchen might necessitate immediate control.
Whenever possible, you should try to avoid pesticides in sensitive areas such as homes or restaurants. If pesticides must be used, they should be applied sparingly and only as needed. This helps to reduce risks to humans, beneficial insects and other organisms that can be affected by the pesticides. If you are applying pesticides yourself, be sure to follow all safety instructions carefully.
In addition, when using pesticides in a home or office building, it is important to cover or remove any foods, toys, children’s items, pets and other valuables. This will protect them from any chemical odors that may be present after treatment and help to ensure they are not exposed to any residual chemicals. Ventilation of the area should be good after treatment to disperse any remaining odors.
Suppression
If preventive measures fail, or eradication is not possible due to the threat to human health and/or property, suppression is often the goal. Suppression involves reducing pest populations to an acceptable level through chemical, biological and mechanical means.
Threshold-based decision making is the best approach to determining when action is needed. For example, noticing a few wasps around the house or yard does not necessitate pest control, but seeing them every day and in large numbers probably indicates that their presence is becoming a problem.
The natural forces that influence all organisms also affect pest populations, causing them to rise and fall. These factors include weather, environmental conditions, natural enemies, available food and water supplies and other resources.
Natural enemies — predators, parasites, pathogens and competitors — injure or consume pests to limit their population sizes. This form of pest control is the foundation of biological controls, which include the use of beneficial insects (e.g., lady beetles and lacewings), nematodes and plant disease pathogens.
Cultural practices can also significantly reduce the ability of pests to reproduce, disperse and survive in a treated environment. This category includes such tactics as changing irrigation methods, cropping techniques, fertilization regimes and modifying tillage practices.
Mechanical and physical controls include such tools as traps, pheromone lures, barriers, diversionary plantings, weed barriers and herbicides. Chemical controls typically include a broad range of products, from organic insecticides to synthetic chemicals. The most common chemicals are insect growth regulators, fungicides and herbicides.
Some species of insects, nematodes and plants are naturally invasive and can have negative effects on surrounding habitats and ecosystems. They can disrupt native plant communities, displace desirable plants and negatively impact soil quality, moisture availability and fire events. These organisms are considered pests when they adversely affect humans, their properties or the natural environment. In some cases, a pest will become so problematic that it is considered a significant nuisance to the local community. In this case, local governments may implement a regulatory control program to eradicate the problem. This type of control can be more costly and time-consuming than prevention or suppression, but it may be necessary in some situations.
Eradication
When eradication of pests is not possible, control methods aim to keep the problem below a tolerable level. Usually, this means prevention or suppression. However, eradication can be a viable goal in indoor situations where certain pests, such as cockroaches or mice, can pose health threats. For example, rodents can spread pathogens like hantavirus and e-coli through their droppings and urine, while flies can transmit Shigella bacteria.
Physical
Traps, netting and decoys are physical pest control solutions that prevent pests from entering your property in the first place. They can include repellents, which act as a deterrent to pests (e.g., spiders, earwigs, silverfish, house centipedes) or insecticides that kill pests, such as ant baits, termite gels, sprays and powders. Physical controls can be messy to use, and some may require you to handle a trap or decoy, but they are an effective, economical way to deal with certain pests.
Biological
Many people prefer natural pest control methods over chemical treatments because they are generally less toxic to humans and pets. These methods are also often more environmentally friendly. For example, a vinegar solution can repel mosquitoes; sprinkle cinnamon on ants’ trails to destroy their nest; put out a bowl of water with slices of cucumber and melon to attract and drown gnats; or plant chrysanthemums near your home to discourage spiders.
Another effective option is microbial pesticides, which use naturally occurring soil bacteria to destroy pests (e.g., Bacillus thuringiensis for beetles and flies). Some of these solutions can be applied without any handling, but others must be handled to work properly.
Regular yard maintenance is another important step to take to avoid pest problems. Remove weeds and tall grass and trim back branches to reduce places for pests to hide. Don’t leave out pet food or water for extended periods, and keep garbage cans tightly closed. Don’t store firewood or other materials against your house, as they can be a magnet for pests looking for shelter.
IPM
Integrated Pest Management (IPM) is the best way to keep pests under control without resorting to toxic chemicals. IPM programs focus on prevention and suppression by reducing sources of food, water and shelter for pests. When control methods are needed, they are used judiciously and with the least possible risk to people, pets, plants and the environment.
IPM techniques involve monitoring the pest population and environmental conditions on a regular basis to determine if action is needed. Using inspection checklists, sticky traps and other tools, you can develop a pest identification system to accurately diagnose problems.
When a problem is detected, an effective treatment strategy may involve nonchemical strategies such as growing plants that are well adapted to the site and climate, improving soil quality, adjusting irrigation and fertilizer levels or caulking cracks in buildings to prevent insect or rodent access. When necessary, a chemical control may be added. The goal is to keep the pest population below economic injury level, which varies by crop type and season.
The first step in an IPM program is to set action thresholds, which are the points at which pests will become a nuisance or health threat. For example, a juniper with many chewed needles is at the point of needing a control, but a single aphid on a kale plant is not. The thresholds are based on a combination of the pest’s behavior, appearance and damage to the plant or its surroundings.
An important aspect of IPM is the use of natural enemies, which are predators and parasitoids that kill or disrupt the pest’s life cycle. These organisms are often released intentionally to manage pest populations. It is critical to research any predator or parasitoid species before releasing them in your garden. You must find a reliable source, learn how and where to release them, and choose organisms that target the specific pest you’re trying to manage.
IPM programs also encourage the use of mechanical controls, such as hand picking, barriers, tillage or traps to reduce pest numbers. All of these tactics are less expensive and safer than pesticides, which pose some risk to humans and beneficial insects.
The Basics of Pest Control
When pests get a foothold, they can cause serious damage to your home and health issues for you and your family. Ignoring a problem can only worsen the situation.
Clutter provides hiding places and food sources for pests. Be sure to clear away piles of wood, leaf debris, garbage, and other potential shelters. Contact Bakersfield Pest Control now!
Pest identification is the first step in any pest control process. Knowing what organism you are dealing with will help you determine its food, environmental and harborage needs and the time of year when it is most vulnerable to pest management tactics.
Incorrect pest identification can be costly for a business or home owner. Identifying pests correctly allows you to plan more effective preventative or pesticide treatment strategies, reduce application costs and minimize risks to people and the environment.
Pests have a variety of different appearances. Some are grotesque or frightening, like spiders and silverfish; others bite or sting, such as wasps and mud daubers; some have an unpleasant smell, like bed bugs and cluster flies; some stain or damage personal possessions, such as clothing moths and carpet beetles; and many spread diseases, including worms, slugs, mites and fungi.
A pest’s physical form can also change as it reaches various stages in its life cycle. It may start as a weed seedling, then develop into an immature insect or mature adult. This is important to know because the best pest management tactics are those that target a specific stage in the pest’s life cycle and are not intended for general use, which could result in off-target damage.
Identification of a pest will also give you clues about its habitat and habits. If a problem is confined to one area, it might be possible to use a cultural practice to limit its occurrence, such as removing wood debris around a building or keeping firewood piles away from the house. Alternatively, a physical barrier such as a tightly fitting screen might be used.
If the pest is persistent or requires an immediate response, it might be necessary to use a pesticide. If pesticides are used, they must be applied accurately and at the correct time of year to be effective. Some pesticide applications fail because the wrong type of chemical was applied or it was applied at a time when the pest was not susceptible to the chemicals. Incorrect pest identification will also lead to an ineffective pesticide application.
Prevention
Pests are more than a nuisance – they can damage your property and create health risks for you and your family. The best way to deal with a pest infestation is to prevent it from occurring in the first place. Pest prevention is an ongoing process that requires vigilance, regular cleaning and monitoring for pests and their signs. It also involves removing food, water and shelter sources that attract pests. This includes storing all food items in containers that are tightly sealed, removing pet water dishes regularly and keeping garbage bins and dumpsters tightly closed. It’s also important to reduce or eliminate moisture sources by fixing leaky pipes, avoiding overwatering house plants and clearing away damp areas around your home or business.
Preventing a pest problem can be time consuming, but it’s worth the effort. You will save on repairs, avoid health and safety risks and enjoy a less stressful life without pests pestering you.
Many pest control professionals use a preventive approach that encompasses inspection, identification and monitoring, sanitation and cleaning, exclusion and maintenance and cultural practices. This type of pest management system identifies what a client is responsible for and what the pest control professional is responsible for and ensures that both parties are working together to avoid problems.
For example, it may include establishing an employee on staff who is responsible for inspecting incoming deliveries to prevent pests from entering a facility. It might also involve developing a protocol for staff to follow when cleaning facilities to help remove pests from surfaces before they have a chance to settle on them. It could also include determining the best time to treat for pests in a field so that they do not interfere with crops at an inappropriate time.
Prevention can be a complex task, and it is difficult for the average person to keep on top of when they are busy with work, family and other activities. This is why many people choose to have a professional pest control service take care of the issue for them. These experts are knowledgeable about the different pests and how to prevent their infestations, which means you can have peace of mind knowing that your home or business is safe from unwanted guests.
Suppression
When pest populations reach unacceptable levels that threaten esthetic or economic values, action must be taken. This is known as suppression. Suppression tactics make life difficult for pest organisms so they cannot survive or reproduce, and are most effective when combined with prevention techniques.
Climate influences pest populations directly and indirectly, through temperature, moisture, day length, and soil conditions. These factors affect pest growth and development, as well as the growth of their host plants. Unusual weather can cause a rapid increase in pest numbers and damage, or may suppress them.
The presence of natural enemies (parasites, predators, or pathogens) can control pests. Predatory insects and birds, fish, mammals, reptiles, amphibians, and other animals feed on pests and help keep their populations low. Parasitic mites, nematodes, and viruses can also reduce pest populations. Many of these natural enemies are available commercially as biological control agents. Their effectiveness depends on the species of pest and its environment, and they may have a lag period before they begin to suppress a new pest population.
Physical barriers such as netting, screens, traps, and fences can prevent pests from entering an area or reaching harmful levels. In addition, mulching can inhibit weed growth beneath crops or in fields, and grid wires or spikes may discourage bird pests. Chemicals, radiation, electricity, or steam sometimes are used to control pests by altering their environment or killing them.
Resistant varieties of plants, wood, and structures can help keep pest populations below damaging levels by making them less attractive or inhospitable to them. Using resistant trees, crops, and materials can save money and reduce the need for pesticides.
Some crops or areas are naturally more suited to particular pests. Using these areas can lower pest pressure and improve production. Resistance is usually a genetic trait, but other traits, such as physical characteristics or chemical properties of the host, can also provide pest protection. For example, certain types of apples and pears are resistant to fungus, and some vegetables and herbs have natural chemicals that repel or kill pests. A variety of other substances, such as odors, can also deter pests.
Eradication
In some cases, pests must be eradicated completely, such as when an invasive species threatens the health and biodiversity of an ecosystem. This is a very difficult goal to achieve, and it is usually a last resort. In outdoor settings, eradication is rarely attempted. Instead, prevention and suppression are the primary goals. Eradication is more common in indoor environments, where the pests can be more easily contained and controlled. Examples include fumigation of homes or buildings, which involves sealing them and releasing toxic gas to kill the pests; and the use of rodenticides to control rodent infestations in homes and businesses.
Many invasive foreign plants are considered pests because they disrupt local ecology by displacing native species and taking over crop, pasture and rangeland. These plants can also taint hay and other agricultural crops, costing farmers millions of dollars each year. Sutter County Pest Control works to identify and eradicate these noxious plants, so they can no longer damage our farms and wildlands.
Biological control is the mass production and release of a pest’s natural enemies, such as predatory insects or parasitoids. These are organisms that attack the pest directly, either by eating its eggs or larvae or attacking its adult stages. To be effective, these organisms must have a close life cycle with the target pest, and they must survive in disturbed systems where their own population may not have sufficient density to offset the impact of disturbance on the host and prey populations.
Chemical pesticides are highly specialized chemicals that kill or repel specific kinds of pests. They are typically sprayed as aerosol sprays, dusts or baits, and they may work by disrupting the nervous system of the pest, killing it or by causing genetic mutations that prevent reproduction. These chemicals are regulated by the EPA and are generally not harmful to humans, but they can be hazardous to beneficial insects, other animals and microorganisms in water runoff or soil.
Another type of biological control is the use of parasitic nematodes, microscopic worms that live in the soil and kill or sterilize the insects they attack. These nematodes, such as the roach-eating nematode Steinernema carpocapsae, can be sprayed in large numbers to attack unwanted insects in the soil.