There will be more information on the classes of chemicals in the Learning to Use Tactics section, Activity Lessons from Labels. There are many "chemicals" that are used in pest management situations, but not all chemicals are alike from the standpoint of their range of action, toxicity, or persistence in the environment. "classical" biological control in which new biocontrol species specific to pests are sought and introduced. augmentation of naturally occurring species by purchasing and releasing more of the same.conservation and encouragement of naturally occurring biocontrol organisms by cultural techniques or at least avoidance of harming them.Use of predators and parasites as biocontrol for pests are handled in one or more of 3 ways Use of microbial diseases of pests have become part of the chemical pesticide registration process and is treated below under Chemical methods. Use predators, parasites and diseases of pests in a targeted way to suppress pest populations. There are also special uses of genetic techniques on pests themselves, such a "sterile male" insect releases. Recently, this category has been expanded to include genetically engineered pest resistance, such as Bt corn or potatoes. Use pest-resistant plant varieties developed by classical plant breeding. For example, this could mean using barriers, traps, vacuuming, mowing or tillage, depending upon the pest and situation. Prevent pest access to the host or area, or, if the pests are already present, physically removing them by some means. Strong plants resist diseases, outgrow weeds and are less likely to succumb to insects. Planting plants that are adapted to your growing conditions, planting them in the right place, giving proper attention to their water and nutritional needs and the like. Suppress pest problems by minimizing the conditions they need to live (water, shelter, food). What are the categories of tactics and specific actions included in each? Cultural methods Least-toxic effective methods are used before more toxic ones whenever possible. Many tactics keep pest populations off-balance and avoids development of resistance to pesticides.
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