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Unformatted text preview: Suppression The worst effects of gypsy moths occur at high population densities. In areas that are already highly infested, suppressing the population as much as possible can minimize damage to trees. This is usually accomplished using ground applications of pesticides to individual trees, and aerial application of pesticides to larger areas. Biological Control In an effort to minimize the use of pesticides, research scientists are focusing on the gypsy moth’s natural enemies. Some, such as birds, do not have a substantial effect on populations. However, the following natural agents can cause considerable mortality: • insect parasitoids and predators • small mammals, including deer mice and shrews • wilt, a disease caused by the nucleopolyhedrosis virus • an entomopathogenic fungus species For more information, contact Zack Nagel at 555-555-5555....
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