Rice seedlings in rice fields should be treated according to the severity of the disease. In general, the disease is serious, and there are clusters of dead seedlings, and pesticides should be taken immediately. If the incidence is mild, there are only sporadic lesions. You can use the tricyclic azole 500 times solution to give the grafting medicine 2-3 days before the sputum extraction, or use the two kinds of liquid medicine to dip in the sputum sputum, and immerse for 30 minutes. After planting, it can prevent leaf blast in the field. Methods as below:
1. Tricyclazole: use 20% tricycloazole wettable powder 75-100g per acre, 40-50kg water to spray 2 days before plucking, or dip in the pupa, rice tiller, can be The leaves are sprayed at the beginning.
2, Fuji No. 1 (also known as Chu Yuling): 40% Fuji 1st emulsion per acre, 75-100 grams of water plus 40-50 kg, applied in the early stage of leaf blast, such as the disease continues to be popular, after 10 days should be applied The second drug. After application, the field should be kept 1 inch deep in water for 2-3 days.
3, Kezhen San: 75 grams per mus of 40 grams of sputum emulsion, plus 40 kg of water, acute lesions appear on the leaves, or the field of the field of spray control, severe disease after 7 days after spraying again.
4, carbendazim: 50% carbendazim WP 0.5g per acre, add 40 kg of water, spray in the presence of acute lesions.
5, different rice glutinous rice: 40-125 grams of 40% different rice glutinous rice emulsion per acre, 50-75 kilograms of water added to the initial spray of leaf blast, can also treat leaf blast, rice planthopper, sheath blight and so on.
For more pesticide applications, please visit the China Pesticide Network .
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