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Now let’s talk about pest control principles. In the old days, pest control could mean simply using a pesticide to kill a pest. Due to the economy, environmental protection and regulation today includes a decision-making process and a carefully planned approach to management.
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First step in any pest control program, make sure you correctly identify the pests. Once a pest is correctly identified, the pest manager can study the pest’s life cycle, reproductive traits and its growth habits.
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Understanding the biology of the pest is critical when you are developing a pest control plan. Misidentification of the pest may occur ineffective pest control, waste of time and money.
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Plant diseases are the fourth major category of pests. Plant disease can be caused by disease organisms called pathogens, or they can be caused by non-living agents. Disease pathogens or living agents include fungi, bacteria, viruses, nematodes and phytoplasmas.
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These organisms infect plants and are often dependent on specific host species survive. Symptoms of pink mosaic virus are pictured above. Bottom image shows the fruiting body of the fungus that causes Nectria twig blight on some fruits and ornamental trees.