Rice blast: 1. Select good varieties, choose to promote disease-resistant varieties, and mix and match reasonably. 2. Seed sterilization, 1 kg of seeds were soaked with three grams of 20% tricyclazole for 24 hours. 3. Strengthen cultivation management. 4. Dip the drug solution, dip with 750 times solution of 20% tricyclazole wettable powder, or use 40% rice bran emulsifiable concentrate, spray 100 ml or 100 ml of Fuji No. 1 emulsifiable concentrate with water 60 kg. Cervical sputum prevention, use of 75% Fengdeng WP powder for 25- 30 grams or 20% tricyclazole 100 grams. Ye Xie treatment, using rice blast.
Sheath blight: 1. Agricultural control, standardized cultivation, non-biased application, delayed application of nitrogen fertilizer, moderate drying of the field. 2. Chemical control. Master the bifurcation, two susceptible growth stages of the booting stage, and use 20% jinggangmycin wettable powder 25g to water 60kg spray to control the spread of the disease to the upper part.
Rice aphids: 1. Control indicators: Rice is affected by tillering, first feeding on leaf sheaths, causing dead sheath, then biting off heart leaves, causing dry seedlings; booting, heading stage damage, resulting in dead booting or white spikes. 2. Control measures: use 0.2% hypertonic salt of Weiwei 40-60 ml or 5% Regent 30 ml or 20% triazophos 80-100 ml.
Rice planthoppers and leafhoppers: 1. Rice planthoppers and leafhoppers are small in size and often occur in mixed form. Generally, the annual yield is reduced by more than 10%, and the annual production is reduced by 20% to 30%, and some even have no income. 2. Control measures, using 22% scorpion 10 grams or 80% dichlorvos emulsifiable concentrate 100 ml water 60 kg spray.
Rice leaf roller: 1. Control indicators, strengthen field management, apply enough base fertilizer, apply top dressing, but apply nitrogen fertilizer late, avoid rice gluttons and induce salt mites to concentrate on spawning, average 100 plexes 15-20 Should be applied. 2. Control measures, using 20% ​​insecticidal double water agent 200-250 ml or crystal trichlorfon 100 g plus water 50 kg spray. The application time is appropriate in the evening.
Rice locusts: 1. Control indicators. In the adult priming period, focus on the green leaves and lush green rice fields. If there are more than 10 eggs on 100 cultivars of rice, or 10 larvae at tillering and booting stage, they should be applied. Prevention and treatment. 2. Control measures to eliminate weeds and artificial killings on the edge of the ditch, on the edge of the field, chemical control with BT emulsion 200 ml or crystal trichlorfon 75-100 g with water 60 kg spray, spray at 4 o'clock in the afternoon after sunny or cloudy Good days.
Sheath blight: 1. Agricultural control, standardized cultivation, non-biased application, delayed application of nitrogen fertilizer, moderate drying of the field. 2. Chemical control. Master the bifurcation, two susceptible growth stages of the booting stage, and use 20% jinggangmycin wettable powder 25g to water 60kg spray to control the spread of the disease to the upper part.
Rice aphids: 1. Control indicators: Rice is affected by tillering, first feeding on leaf sheaths, causing dead sheath, then biting off heart leaves, causing dry seedlings; booting, heading stage damage, resulting in dead booting or white spikes. 2. Control measures: use 0.2% hypertonic salt of Weiwei 40-60 ml or 5% Regent 30 ml or 20% triazophos 80-100 ml.
Rice planthoppers and leafhoppers: 1. Rice planthoppers and leafhoppers are small in size and often occur in mixed form. Generally, the annual yield is reduced by more than 10%, and the annual production is reduced by 20% to 30%, and some even have no income. 2. Control measures, using 22% scorpion 10 grams or 80% dichlorvos emulsifiable concentrate 100 ml water 60 kg spray.
Rice leaf roller: 1. Control indicators, strengthen field management, apply enough base fertilizer, apply top dressing, but apply nitrogen fertilizer late, avoid rice gluttons and induce salt mites to concentrate on spawning, average 100 plexes 15-20 Should be applied. 2. Control measures, using 20% ​​insecticidal double water agent 200-250 ml or crystal trichlorfon 100 g plus water 50 kg spray. The application time is appropriate in the evening.
Rice locusts: 1. Control indicators. In the adult priming period, focus on the green leaves and lush green rice fields. If there are more than 10 eggs on 100 cultivars of rice, or 10 larvae at tillering and booting stage, they should be applied. Prevention and treatment. 2. Control measures to eliminate weeds and artificial killings on the edge of the ditch, on the edge of the field, chemical control with BT emulsion 200 ml or crystal trichlorfon 75-100 g with water 60 kg spray, spray at 4 o'clock in the afternoon after sunny or cloudy Good days.
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