Accurate identification of pests is essential to an effective pest control program. Identification helps determine basic information about the pest, such as its life cycle and when it is most susceptible to being controlled.
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Preventative measures to reduce pests is the best way to avoid a pest control problem. Regular pest inspections and preventative treatments can reduce the risk of costly repairs to your home or business, protect you and your family from harmful pathogens and allergens carried by certain pests, and preserve your property’s value.
Sanitation and cleaning practices help to prevent pests in the first place or, when these fail, they can reduce their ability to spread. This includes proper storage and handling of food, garbage and compost, regular cleaning of high traffic areas (especially kitchens) and keeping waste and discarded materials away from buildings to prevent rodents from gaining access.
Pests are attracted to food processing environments primarily for water, food and shelter. Their presence in these environments can result in physical contamination of food products (e.g., rodent droppings, insect parts), deterioration of stored foods and damage to equipment, facilities and structures. Pests can also transmit diseases to humans and animals through contact with their bodies or feces.
Proper pest proofing can reduce the likelihood of infestation by blocking entry points such as cracks and gaps, installing door sweeps and using window screens. Eliminating food sources and other attractants, such as weeds, can also reduce pest numbers. Keeping trash cans, dumpsters and recycling bins tightly closed and ensuring that they are removed regularly and on time for collection can also reduce pest numbers.
Routine maintenance involving pest monitoring and treatment can reduce the incidence of pest problems in newer buildings or those that have just undergone major renovations. This can save money by preventing costly repairs and even structural destruction.
A common mistake is to treat a pest problem when it has already become a serious problem. This can cost more than just the initial treatment and can harm the environment. The ideal situation is to use prevention when possible and to only resort to controls if their benefits are greater than the costs. When prevention is not possible, control goals should be aimed at suppression and, in extreme cases, eradication of a pest.
Suppression
If pest problems occur, management methods can be used to restrict their growth. Preventive approaches, such as frequently cleaning areas where pests live and avoiding releasing substances that attract them, reduce or eliminate the problem. Control measures that destroy the pests directly are called suppression methods. They can include physical controls, such as traps and screens, or chemical sprays, drenches, baits, and soil fumigants.
Biological and cultural controls make the environment less suitable for the pests by limiting the conditions that support their populations. These factors can be natural, such as weather or topography, or human-influenced, such as cultivation practices and cultural methods. Biological control involves the use of living organisms to injure or consume the pests, usually predators, parasitoids, or pathogens. Biological control agents are mass-reared at insectaries and, depending on the species of the target pest and the environment, may be released inoculatively or inundatively.
Other natural forces can also limit the pest population, including disease, competition from more vigorous or tolerant varieties, and genetic resistance. Resistant varieties are more tolerant to damage from pests and require less pest control than other types.
When preventive measures and suppression techniques fail to manage the pests, regulatory controls may be necessary. Regulatory controls can be federal, state, or local programs designed to improve planting and farming practices or to prohibit the movement of plants and plant products that are not in compliance with regulations.
Because pest control is a complex process that encompasses the interaction of people, plants, and other living organisms with their surroundings, it is important to consider all possible effects of any treatment on the entire system. If you are using pesticides to treat a pest problem, it is especially important to carefully read and follow all instructions on the product label and, when applicable, on the pesticide permit. This includes the requirements for first aid and the proper personal protective equipment to ensure your safety as well as that of others involved in pest control activities. This will help reduce the chance that any off-target pests are killed or injured by your efforts and will ensure that the pesticide you are applying is working as intended.
Eradication
Pests are organisms that are undesirable in the environments where they occur. They are often damaging to people, plants or livestock and may transmit diseases. Pest control is a necessary part of human activity to protect public health by eliminating diseases transmitted by pests, safeguarding agriculture and food supplies, and preserving property from damage. It is also essential in maintaining ecological balance by controlling invasive pest species that disrupt natural habitats.
There are many different methods of pest control, both physical and chemical. Physical methods include traps, netting, and decoys. Chemicals include repellents that are designed to keep pests away and insecticides, which kill insects. Chemicals are typically easier to use and can be more effective than physical controls, but they can pose health and environmental threats upon exposure.
Biological control is based on using a pest’s enemies, such as parasites, predators or pathogens, to reduce its population. This method can be effective but requires a certain degree of maintenance, as there is often a time lag between the introduction of the enemy and the onset of full control. It can also be difficult to implement in outdoor settings because the environment is more complex and the pest may have established itself in a particular area.
Other methods of pest control involve altering the environment to make it unsuitable for the pests. This is often done by removing food, shelter or water sources. For example, by putting barriers around crops to prevent pests from entering and damaging them or by repairing leaky pipes that provide moisture for insects.
The ultimate goal of pest control is eradication. Eradication programs are usually large and expensive, requiring the involvement of multiple stakeholders at local, community, national, and international levels. It is important that any eradication program be carefully planned to avoid introducing new pests into the area being targeted and to ensure that the eradication is permanent. The terms exterminate, extirpate, and eradicate have been used to describe this process, but there is no universally accepted definition of eradication. A variety of definitions have been proposed, including limiting the number of individuals in a population to zero, excluding the removal of eggs or spores from an environment, and removing all of the factors that allow a pest to thrive.
Monitoring
Pest monitoring is one of the most important elements of an integrated pest management (IPM) strategy. It allows you to see how a pest problem is progressing or to compare the effects of a treatment against the results you expected. Monitoring can also help you decide whether to continue with a particular control method or adjust it, and it gives you feedback on how well your prevention techniques are working.
Monitoring can be done through a variety of methods, including insect light traps (bug lights), insect pheromone traps, or even sticky traps or glue boards. You can also monitor pests through a visual inspection of your facilities. This type of monitoring is especially helpful for weed pests, which can build up high populations without being noticed by a human eye.
Rodents, for example, can chew through many kinds of materials and cause structural damage to food processing environments. They can also spread disease-causing pathogens in their droppings and urine. Cockroaches, meanwhile, can carry more than 45 pathogens, including E. coli and Salmonella, across your facility as they search for food.
Other pests may be more difficult to detect, particularly those associated with raw materials (such as stored product insects). Monitoring of these types of pests often involves a combination of trapping and scouting. In most cases, a pest control manager or company staff will be the best source of information about a potential pest problem.
A pest sightings log should be maintained by the pest management team to record observations of pest activity in your facility. This should include the date, specific location, and identity of the pest, as well as a note of what steps were taken to correct the issue.
Monitoring can also help you determine what pest populations are “threshold” levels – the level of pests above which you must begin pest control action to prevent unacceptable damage or contamination. For example, if you have a cockroach threshold of 45 pathogens per cockroach, and you spot 15 cockroaches in your facility, this would be enough to trigger your pest control program.