Aihua Plant Protection Creation
First, recognize the insect shell -
There are many kinds of insect shells, and the picture below shows the common species. They have evolved three layers of protective fortifications for reproduction, which is amazing! Each female lays about 300-9,000 eggs, and after the white silk wraps the egg sac, it is placed under the body for a layer of protection; the second layer of protection: they secrete a waxy layer, or wear various shapes of a shell shield; the third layer of protection: they form a net around the body to cover. Therefore, it is rare to see its true face, the harm is not to mention, and it is difficult for traditional medicines to hurt themselves and insect eggs - unless they can attack their weaknesses!
Second, what is the weakness of the insect?
1, a major weakness: they lay eggs in the body at the end of April, turn into nymphs in early May, leave the mother's poor ability to move, while losing three layers of protection, the body is fragile, with traditional medicine can be a trick to win, is a better mobile phone window for killing insects in a year.
2, two major weaknesses: the insect breeds 2-3 generations a year, in September, after the insect mating and fertilization, the female adult overwinters in the branches, roots and soil crevices, concentrated and weak, suitable for pruning or drug fixed point elimination.
III. Methods of Annihilating Insects (Collection)
1, the end of the insect shell, refers to the insect eggs are killed - the method of sharply reducing the base of the insect mouth, in early May, you can use pyridine ether + to do a class of insecticides, for the weakness of the poor movement ability of the insecticide, making it difficult to lay eggs (even if the eggs are also waste eggs), and make it difficult to molt, difficult to feather, cut off its reproduction, and low cost.
2. Clear the garden in autumn and winter, prune and burn the insect branches, according to the concentrated and weak characteristics of fertilized female adults, spray the whole park with pyripropyl ether, or stone sulfur mixture, etc., to kill the overwintering pests and their egg blocks; it can also be used with chitin synthase inhibitors in the spring when killing aphids, such as pyridopipine, fludyridine pyriproth, heliproprid, etc., to eliminate the overwintering female adults.
3. Control the occurrence area of insects, pay attention to the initial occurrence, do not save luck, prune and destroy insect branches, and carry out 2-3 small-scale insecticidal and egg killing treatment. Do not wait for its mass reproduction and then control, waste manpower, material resources, crop losses are not small. You can pinpoint the weakness of the insect and annihilate it in one fell swoop.