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Rice mid-late major pests
Rice blast catches the first procreation from the end of the booting period to the beginning of the break (usually a break of 5% to 10%), and then applies the second medicine during the full heading, depending on the weather and the development of the disease. Mu with 20% tricyclazole 75-100 g wettable powder, or 40% Fuji No. 1 wettable powder 100 g, or 30% rice bran oil 150 ml. Optional one, watering 60-75 kg conventional spray, or watering 7.5-10 kg low spray. The rice borers focus on the prevention and control of the second generation of S. indica and two generations of S. indica in some areas, and focus on the paddy fields from the ear of rice to the ear of panicle. Mu with 5% insecticidal double big granules 1 ~ 1.5 kg å…‹æ’’, can also use 25% of insecticide double water agent 150 ~ 200 ml, or 25% of insecticidal double water agent 100 ml plus Bt emulsion 100 ml, any Choose one, watering 60 to 75 kg of conventional spray, or watering 5 to 7.5 kg of low-volume spray. Sericulture area is best to use insecticidal double granules to avoid pollution of mulberry leaves. The field should be kept in a shallow layer of 3 to 5 cm when applied. When planthoppers are used for pesticide application, attention should be paid to starting from around the field, and from the outside to the inside, the cocoon should be implemented. Spraying should be even and thorough, pay attention to spray the liquid in the rice plant, the lower part. Using Pucarb, the best results are obtained when the dew is sprayed in the morning. Mu with 25% buprofezin WP 20 ~ 25g, or 25% eucalyptus WP 20 ~ 25g, or 20% Yeyu San EC 150ml, any one, watered 75 ~ 100 kg conventional Spray, or dilute 5 to 7.5 kg of low spray. Rice sheath blight on the incidence of paddy fields should be mastered at the booting stage when the disease rate of 30% to 40% when spraying. The liquid to be sprayed in the rice plant, the lower part. With the pouring method, the field should keep 3 to 5 cm shallow water layer. When applying jinggangmycin, it is best to perform it in the sunny days after the rain, or when there is no heavy rain within two hours after the application. Mu 5% Jinggangmycin aqueous solution 100 ~ 150 ml, or 25 grams of Jinggangmycin high-concentration powder, optional one, watering 100 kg conventional spray, or pouring water pouring 400 kg. Rice borers focus on the late-middle rice fields, grasping the larvae of young larvae, and administering 10 to 20 insects per 100 clusters of rice. Mu with 90% crystal trichlorfon 75 ~ 100 grams, or 50% of the killing pine EC 100 ~ 250 ml, or Bt emulsion 150 ~ 200 ml, optionally, watered 75 ~ 100 kg conventional spray, or watered 5 ~ 7.5 kg low spray. It is advisable to apply the pesticide after 4 pm on sunny days. In the period of young larvae, rice leaf roller was applied to 15 to 20 primaries per 100 clusters of rice, or about 20 insects per 100 rows at the heading stage. Mu with 25% of insecticidal double water 150 ~ 200 ml, or 50% of the 75 ml of Pinus sinensis EC, one of them is optional, watering 60 ~ 75 kg of conventional spray, or watering 5 ~ 7.5 kg of low spray. Application time is appropriate in the evening. To promote the use of new technology of triadimefricum in the panicle stage. In the booting stage of rice, 50-100 grams of triadimefon can be used per acre, watered conventionally or sprayed in low doses, which can effectively prevent premature aging of hybrid rice and can also be used to treat rice grain. Blight, rice smut, rice smut, and other diseases at the head stage.