Main diseases and pests of rice seedlings

The main pests and diseases: Spodoptera, amaranth, rice weevil, rice bran. Diseases, bastard diseases, rice seedlings.
Control methods: 1, seed treatment sterilization, germination before seed treatment with HB2001 or strong chlorine fine soaking. 2, to strengthen water management, good water conditions in the place before and after the needle adhere to the sunny days, "white irrigation night row", rainy days, "night irrigation white row" to a leaf after the water protection seedlings to prevent flooding seedlings. 3, pharmaceutical antifreeze and disease prevention, promote seedlings robust, every 1 field with 5ml transplanting Lingling water 15 kg evenly sprayed, or with seedling God, Miao disease grams 1 bag / mu watered 60-100 kg uniform spray. 4, seedlings 3-4 leaf stage, the full use of sterilization Wei or bacteria eliminate disease prevention and treatment.
The occurrence of rice blast in our city can be divided into seedlings, leafhoppers, panicle blasts and grain hoppers. The prevention and control pays attention to the prevention and control of seedlings and the prevention and treatment of leafhoppers in the field, and the base of depression is reduced and the panicle and grain pods are reduced. The chance of occurrence of the use of pharmaceuticals such as the new bactericide bactericide.
Shuanghuan has occurred in the city for 3 generations a year. The first generation of larval stage is from early May to early June. The second generation is from mid-July to mid-August; the third generation is from late August to mid-September. After the larvae are hatched from the larvae of the larvae, the larvae usually crawl downwards along the rice leaves or droop from the leaves, invade from the gaps or wormholes in the sheaths, and cause damage within the leaf sheaths for a period of time to form a dry sheath. After the insects grew up, they invaded the stalks to cause damage to the whole plant. Therefore, the dry sheath or the central strain is the control period.
Three generations of Sassafras tsutsugamushi occur in the city for four generations a year. The eggs are generally produced in the upper leaves of the rice. After the ants have hatched, the pods invade into the stems of the plants. The peak of egg hatching of S. indicum is the control period. (Hubei Dangyang Agricultural 110 Service Center)

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