文档介绍：INSECT PESTS OF INSECT PESTS OF POTATOPOTATO?Potatoes are attacked by most of the insects which infest closely related solanaceous plants like tomato, eggplant, and pepper. ?However, since potatoes are grown for their edible tubers, they must receive greater protection from soil-inhabiting pests. ?Wireworms, tuberworms, white grubs, and vegetable weevils are pests for which growers should TO POTATO PESTSKEY TO POTATO that feed externally on the upper pests that make holes in leaves : Blister beetles, Colorado potato beetle, Flea -sucking pests that cause discoloration, deformation, or that feed on underground plant parts, bore into stems, or mine in leaves and petioles 钢筋调直切断机钢筋切断机抹光机 ing pests Chewing pests Blister beetles Blister beetles Several species of slender, elongate beetles up to 19 mm long; have prominent heads; bodies variously colored but usually black, black with yellow margins, or black and yellow striped; stringy black excrement on heavily infested plants; foliage ragged; plants sometimes stuntedColorado potato beetleColorado potato beetleYellowish-brown, oval, convex beetle up to 14 mm long with 5 black longitudinal stripes on each wing cover and several black spots on pronotum (area behind the head) feeds on leaves and terminal growthFlea beetlesFlea beetlesVarious species of tiny, darkly colored beetles to mm long; solid-color body or dark with pale yellow stripe on each wing cover tiny round holes in foliageSap-sucking pests Sap-sucking pests AphidsAphids?Soft-bodied, pear-shaped insects with a pair of dark cornicles and a cauda protruding from the abdomen; may be winged or wingless - wingless forms mon; feed in colonies; cause discoloration or mottling of the foliage; often transmit virus diseases; excrete honeydew on which sooty mold grows?Green peach aphid, Potato aphid Green peach aphidGreen peach aphidPale yellow to green, wingless adult up to mm long; winge