Insect Pests of Crops Idaho AG 510H
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| Insect | Small, boneless animal whose body is divided into three sections and has six legs
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| Spider | A small, eight-legged animal having a body composed of two divisions (cephalothorax and abdomen); the spider is an arachnid, not an insect
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| Mite | Any of a large number of tiny arachnids, many of which live as parasites upon plants
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| Entomology | A branch of science that deals with the study of insects
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| Life cycle | Stages in the life development of an insect
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| Metamorphosis | A change in form, either gradual or sudden
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| Complete metamorphosis | Having four distinct growth stages in development in which a major change in structure and appearance of the insect occurs; each feeding life stage may eat different diets and occupy different environments
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| Incomplete metamorphosis | Gradual change in appearance as growth proceeds; the immature forms are called nymphs and eat the same as the adults
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| Pupa | Stage between the larva and adult in insects with complete metamorphosis
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| Larva | Immature form of an insect having complete metamorphosis
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| Cocoon | A silken case inside which the pupa is formed
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| Nymph | The immature stage of an insect with incomplete metamorphosis
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| Damage | Associated with crop loss and/or reduction in crop yield or crop quality
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| Injury | Deviation from normal appearance of the plant, from which it may recover and not depress yield and/or quality
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| Pesticide | Chemical used to control pests
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| Insecticide | A pesticide used to kill or control insects
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| Acaricide | Pesticide used to kill or control mites, ticks and spiders
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