Pay close attention to treatment of mulberry pests

According to the multi-point investigation of the silkworm mulberry station in Qidong City and the key townships in Sericulture, the occurrence of mulberry caterpillars in recent days was relatively large. The main reason was that as the weather improved, the temperature rose, and the mulberry caterpillars and mulberry pods produced a large number of larvae, and the mulberry sprouts and mulberry leaves were eaten. The threat of spring silkworm production is great. The mulberry caterpillar averages 800 to 3,000 heads per mu, and the high-yielding bale has nearly 10,000 heads per mu. Currently, the young and old larvae coexist; the mulberry footworm has 50 to 500 heads per mu. In the early spring, based on the treatment of pests on the mulberry field, it is necessary to carry out supplementary treatment work on the fields with high density of larvae in time to ensure high yield of mulberry leaves. Select sunny days with 8% killing cream 1500 times solution, the drug residue period is 10 days. When spraying, the mulberry is fully and evenly sprayed from top to bottom. At the same time, physical control measures such as manual capture of mulberry caterpillars and mulberry mulberry worms, scraping of wild egg masses, and Other physical control measures were taken to improve the control effect.

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