Complete Guide to the Whole Process of Rice Pest and Disease Control

1. Before sowing rice, conscientiously implement 3 preventive measures.
1.1 Select rice blast-resistant varieties according to local conditions. For early rice and middle rice, try not to plant susceptible varieties such as Jinyou 402, You 1402, Jinyou 974, Zhongyou 974, You 166, Zhongyou 752, Jinyou 752, 65002, Xinxiangyou 80, and Honglianyou 6.
1.2 In spring, plow and soak winter fallow fields and winter crop fields early to reduce the source of stem borers. Our city requires plowing and soaking to be completed before April 15.
1.3 Do a good job of seed treatment to reduce the occurrence of pests and diseases. For early rice and middle rice seeds, use 1 milliliter of 10% Jinzhongling plus 5 kg of water to soak 3 kg of seeds for 1-2 days, or soak seeds in 2000-3000 times diluted 25% miozamide emulsifiable concentrate for 48 hours, then sprout directly to prevent rice blast and bakanae disease. For middle-late rice and rice seeds, use 40 grams of 10% yashijing wettable powder, mix with sprouted grain, and sow directly to prevent thrips and planthoppers in the seedling field.
2. 3-5 days before transplanting seedlings, spray super "escort medicine" to prevent or reduce the occurrence of pests and diseases during the tillering stage in the field.
(1) Early rice seedling field: spray 100 milliliters of 75% mingshijing emulsifiable concentrate per mu or 200 milliliters of 20% jieqianchou emulsifiable concentrate to prevent and reduce the occurrence of the first generation of striped stem borer in the field; spray 60 grams of 75% wenshidun wettable powder per mu or 200 grams of 20% tricyclazole powder to prevent leaf blast in the field.
(2) Middle rice seedling field:
Prevent striped stem borer and leaf blast: spray 100 milliliters of 40% mingshijing emulsifiable concentrate per mu or 60 milliliters of 5% fipronil suspension concentrate to prevent and reduce the occurrence of the first generation of striped stem borer in the field; use 60 grams of 75% wenshidun wettable powder per mu or 200 grams of 20% tricyclazole powder to prevent leaf blast in the field. Spray 40 grams of 10% yashijing wettable powder per mu to prevent rice planthoppers and rice thrips in the field.
(3) Late rice seedling field: spray 100 milliliters of 40% mingshijing emulsifiable concentrate per mu or 200 milliliters of 20% jieqianchou emulsifiable concentrate to prevent and reduce the occurrence of stem borers in the field.
3. From tillering to booting stage, focus on controlling stem borers and use mixed pesticides to simultaneously control other pests and diseases. For early rice, control the first generation of striped stem borer in mid-to-late May. Apply pesticides in rice fields where the rate of dead sheath clusters reaches 8% or more, focusing on spraying the leaf sheaths. During this period, if leaf blast is found, especially center or acute lesions, apply pesticide promptly for control. For late rice, around August 10 or 10-15 days after transplanting, control striped stem borer or yellow stem borer. When applying pesticides to control stem borers, add jinggangmycin to prevent sheath blight.
4. At the breaking and heading stage, use mixed pesticides to protect the panicles. Implement mixed pesticide use and integrated management of multiple pests and diseases. For early rice, focus on controlling panicle blast and also control sheath blight and rice planthoppers; for middle rice, focus on controlling stem borers and panicle blast, while also addressing rice planthoppers and sheath blight; for late rice, mainly control stem borers, while also addressing sheath blight and rice planthoppers. When applying pesticides at the breaking and heading stage to protect panicles and at the tillering stage to protect seedlings, add jinggangmycin to control sheath blight. In areas where rice planthoppers frequently occur, yashijing should also be added to control rice planthoppers. In areas where rice false smut frequently occurs and in susceptible varieties, use daoquqing for control at the early booting stage (big belly stage). In main landing areas of rice leaf roller, apply pesticides at the appropriate time during the heading stage of early rice and from the late tillering stage to the jointing-booting stage of middle and late rice.
5. At harvest time, promote cutting rice level with the mud, and after harvesting early rice and middle rice, plow and soak in a timely manner.