Spring is the time when most of the mulberry pests begin to move, spread, and harm, especially for food-feeding pests. Therefore, grasping the prevention and control of pests in the spring mulberry field is not only important for the stable production and high yield of the spring leaves, but also has a certain role in reducing the harm of the annual pests. The main control methods are:
1. Clean up the mulberry garden. Before the mulberry sap flows, cut off the dead branches and piles on the mulberry tree, remove the defoliation and weeds in the field, block the cracks and holes in the tree trunk, eliminate the adult wintering mulberry mulberry, mulberry worm larvae, and wormwood worm adults and small mulberry shoots. Locust and so on.
2. Before the mulberry sprouts, the overwintering eggs of the wild silkworm on the trunk are promptly scraped off, and the mulberries crawling on the trunk are wiped off with a rag. When it is found that the mulberry larvae are harmed, they can be killed by wire in their fresh defecation holes.
3. Mushroom mulberry, mulberry caterpillar, mulberry worm and other food bud pests in the early spring to harm the mulberry buds can be killed manually.
4. Chemical control: (1) Before mulberry winter buds begin to sprout and dislocate, they can spray 40% water-containing phosphorothioate emulsion 1000 times solution or 50% killer pine 1000-fold solution in mulberry field to kill mulberry mulberry, mulberry caterpillar, mulberry Elephant worms and so on. (2) In areas where the mulberry is harmful, spray 50% of marathon EC 1000 times before killing the mulberry, and if 2% of the detergent is evenly added before use, the effect of killing is better. (3) In the area of ​​yellowing mulberry atrophy, after the first generation of diamondback leafhoppers hatched, spray 50% marathon EC 1500 times for control. (4) After discovering the fresh defecation hole of Sang Tianniu, 80% of the enemy's enemies can be fed 400 times to inject into the bottom defecation hole, and the soil can be used to block the defecation hole to eliminate the larvae of the beetle.
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