Measures for prevention and control of soybean diseases and pests
Soybean diseases and insect pests do great harm to the normal growth of soybean, and the yield loss is more than 30% when it is serious. Soybean diseases include: soybean root rot, nematode disease, gray leaf spot, brown stripe, downy mildew, etc., pests include root miner, soybean aphid, heart borer, etc. Control methods: ① prevention in advance, selection of disease-free varieties, soil sterilization and insecticidal treatment during soil preparation; spraying sterilization and insect control agents + new high-fat film 800x solution before ② can effectively prevent the occurrence of diseases and insect pests In the period of occurrence of diseases and insect pests, ③ should be sprayed with targeted agents + 800x solution of new high-fat membrane according to the requirements of plant protection.
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Do soybeans need to be suppressed after sowing?
Whether soybeans need to be suppressed after sowing depends on soil moisture. Good soil moisture, poor surface soil moisture, dry loose soil, after sowing in order to make close contact with the soil, eliminate gaps, suppress, will not cause soybean upper soil hardening, conducive to seed water absorption and germination, seedling emergence will be accelerated, can be suppressed while sowing. ...
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Pay attention to the flowering disease of mung bean
At present, mung bean has entered the flowering and entrainment period, and diseases and insect pests have been found in some plots, among which mung bean leaf spot, virus disease, bacterial blight and soybean aphid are more harmful to mung bean. 1, mung bean leaf spot: the main harm to the leaves, there are light brown or dark brown spots on the leaves, with obvious yellow circles on the edges.
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