Spring is the period when most mulberry pests begin to move, spread, and harm, especially the bud-like pests are more awkward. Therefore, grasping the prevention and control of spring mulberry pests is not only important for the stable production and high yield of spring leaves, but also has a certain effect on alleviating the harm of pests throughout the year. The main prevention methods for China's pesticide network are:
1. Clean up the mulberry garden. Before the mulberry sap flows, cut off the dead branches and dead piles on the mulberry trees, remove the fallen leaves, weeds and block the trunk cracks and holes, and eliminate the latent winter mulberry, mulberry larvae and mulberry worms, and small mulberry shoots. Aphids and so on.
2. Before the mulberry tree sprouts, the wild silkworm wintering eggs on the trunk are scraped off in time, and the worms climbing the trunk are wiped with rags. When the larvae of the mulberry cattle are found to be harmful, they can be hooked with wire in their fresh defecation holes.
3. The bud pests such as mulberry mulberry, mulberry caterpillar, and mulberry worm can be killed manually when they come out in early spring to harm mulberry buds.
4. Pesticide control: (1) Before the germination of winter buds of mulberry trees begins, the 40% sulphur sulphur emulsion 1000 times solution or 50% chlorpyrifos 1000 times solution can be sprayed on the mulberry field to kill the mulberry mulberry, mulberry caterpillar and mulberry. Like insects. (2) In areas where mulberry is harmful, it can be sprayed with 1000% marathon emulsifiable concentrate 1000 times before mulberry bud dislocation. If 2% washing powder is evenly added before administration, the effect of medicinal killing is better. (3) In the area where the yellowing type mulberry atrophy disease is infected, after the first generation of the diamond mites, the 1500 times solution of 50% marathon emulsifiable concentrate can be sprayed. (4) When the fresh defecation hole of Sangtian cattle is found, 80% of the enemy can be fed into the lowermost defecation hole with 400 times of the enemy, and the defecation hole can be blocked by the soil to eliminate the larvae of the beetle.
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