First, the harmful habits and prevention and control difficulties of green blind bugs
Green blind bugs are bugs, because the color of the insect body is almost the same as the color of the leaves, the insect body is small, the concealment is strong, it is generally difficult to find.
Breeding 4 to 5 generations a year, the host range is extremely wide, dead branches and leaves, weeds, wing bark, branches, etc. are all overwintering places for insect eggs.
Because of its miscellaneous diet, it has a strong ability to migrate and fly, and it is difficult to spray prevention and control.
Prefer warm, dark, humid environment, do not like high temperature glare, day and night out.
When the temperature reaches more than 10 degrees, the humidity reaches 70%, the eggs begin to hatch, and the eggs hatch in April and May, the sting is not neat, and the eggs, nymphs, and adults overlap generations, endangering almost all fruit trees, apples, pears, peaches, cherries, jujube trees, grapes, and the young tips, young leaves, buds, and young fruits of field crops.
If the prevention is not effective, after the bite of the tender tip young leaves, small reddish-brown dots appear, and as the leaves grow, they become countless small holes, shrink or even tear, which seriously affects the photosynthesis of the leaves. After the bud is bitten, the bud falls off and cannot sit still. After the young fruit is bitten, there is a reddish-brown sap flowing out, and the young fruit grows up to form uneven tumors or rust scars or black spots, which seriously affects the commodity rate.
Second, the prevention and control measures of green blind bugs
(1) Physical prevention and control. Remove the deciduous weeds from the orchard after leaf fall.
(2) Chemical control.
(1) In the spring twice to clear the garden, to the trees under the trees and surrounding weeds, a comprehensive spray to remove insect eggs and nymphs, you can choose to poison ticks or long Lile.
(2) The first and second times after flowering and the growth period of autumn shoots are the key times for the prevention and control of green blind bugs, so as not to endanger the young and young leaves and young fruits. Machetes (5% cypermethrin) or valiant (2.6% methyl salt + cypermethrin) or Wieris (22.4% heliothrin) can be used to eliminate green blind bugs.
(3) Taking advantage of the habit of the green blind bug to lie down at night, you can choose to spray after 4 pm.
Author: Dong Jianxi, lecturer at Zhongnong Le Fruit Industry Research Institute