Scientific name Anomoneura mori Schwarz Homoptera, Hibiscus family. Distribution of Sichuan, Shaanxi, Zhejiang, Hubei and other provinces.
The host mulberry tree.
The characteristics of the damage are: nymph sucking on mulberry bud and mulberry sap, and the damaged mulberry grows poorly. The leaves are curled to the back of the leaves in a cylindrical or ear shape, with severe tissue necrosis or yellowish patches. The back of the leaf is covered with white wax and cannot be fed with silkworms. Mulberry sprouts cannot germinate. Nymphal secretions can also induce coal disease.
Morphological characteristics Adult body length 3.5mm, green color when the first eclosion, and later became taupe. Yellow tentacles. The stump is dark brown and bulging from the dorsum of the back, with a few pairs of dark yellow lines. Forewing translucent, with brown stripes. The egg is grain-like, white in color, and yellow in color. The tip is pointed, with an ovum, and the other end is round, with an egg stem. The nymphs are yellow-green, flat, and have white wax hairs at the end of the abdomen. An annual generation of habits, adults overwintering, mating in late March the following year of spawning, eggs per woman about 2100, spawning period lasts one month, egg period 10 to 22 days. The nymphs were crusted five times; they were adultated in the middle of May. During the summer harvest of the mulberry tree, the adults moved to the nearby cedar trees and sucked. The mulberry sprouts moved back to the mulberry tree after germination. When the temperature dropped from 12°C to 4.4°C, the adults overwintered on mulberry tree gaps, wormholes, or cypress trees.
Control methods (1) Do not plant cypress trees around or near the mulberry garden. After the summer harvest, if there is no cypress as an intermediate host, it will die within 5-10 days. (2) The eggs were promptly removed in early April. (3) In mid-April to early May, the branches of nymphs were cut off and burned. (4)Spray 50% Dimethoate EC 1000 times or 50% Malathion EC 1 000 times in eggs and nymphs to kill eggs. Closer to the silkworm stage or in the silkworm stage spraying 50% dimethoate EC 1000 times liquid poison nymphs, usually after a few days to spray the leaves to feed silkworms.
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