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Herbivorous Insects and Crop Damage
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Boll Weevil
Crops affected: Cotton; Type of damage: Boll feeding, destruction of cotton fibers
Wheat Stem Sawfly
Crops affected: Wheat, barley; Type of damage: Stem boring and cutting
Codling Moth
Crops affected: Apples, pears, walnuts; Type of damage: Fruit tunneling, larval feeding inside fruit
Peach Twig Borer
Crops affected: Stone fruits, particularly peaches and nectarines; Type of damage: Twig boring, fruit surface feeding
Corn Earworm
Crops affected: Corn, tomato, cotton; Type of damage: Fruit and kernel feeding
Armyworm
Crops affected: Corn, rice, sorghum, sugarcane; Type of damage: Defoliation, cutting young plants
Stink Bug
Crops affected: Cotton, soybeans, tomatoes, apples; Type of damage: Feeding on fruits, seeds, and leaves
Rice Weevil
Crops affected: Stored grains, especially rice; Type of damage: Grain feeding
Japanese Beetle
Crops affected: Over 300 different plants, including roses, beans, grapes; Type of damage: Defoliation, skeletonizing leaves
Cotton Bollworm
Crops affected: Cotton, maize, tomatoes; Type of damage: Boll and fruit damage
Grasshopper
Crops affected: Alfalfa, barley, corn, cotton, oats, wheat; Type of damage: Defoliation, chewing on stems and leaves
Potato Leafhopper
Crops affected: Potatoes, beans, alfalfa; Type of damage: Hopperburn, distorted growth, reduced yield
Corn Rootworm
Crops affected: Corn; Type of damage: Root pruning and feeding, lodging of plants
Wireworms
Crops affected: Corn, potatoes, cereals, root crops; Type of damage: Root feeding, tunneling in tubers
Colorado Potato Beetle
Crops affected: Potatoes, tomatoes, eggplants; Type of damage: Defoliation
Aphids
Crops affected: Numerous crops including beans, peas, lettuce; Type of damage: Sap feeding, virus transmission
European Corn Borer
Crops affected: Corn, peppers, beans; Type of damage: Stem boring, tunneling through ears and stalks
Soybean Looper
Crops affected: Soybeans, cotton, tobacco; Type of damage: Defoliation
Gypsy Moth
Crops affected: Oaks, aspens, apple, sweetgum, willow; Type of damage: Defoliation
Thrips
Crops affected: Many different crops, including onions, beans, cotton, and soybeans; Type of damage: Leaf and flower feeding, distorted plant growth
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