What are the main diseases and insect pests of rice
Rice is not only one of the most important food crops in China, but also one of the most widely planted food crops. What are the main diseases and insect pests of rice? How to prevent and cure it?
What are the main diseases and insect pests of rice?
In the seed stage, it is vulnerable to evil seedling disease, rice blast and bacterial leaf blight; in the seedling stage, it is vulnerable to cotton rot, rice blight, gray planthopper, rice thrips, etc.; in the tillering stage, it is vulnerable to rice blast, rice planthopper, rice planthopper and other diseases; in the heading stage, rice blast, rice planthopper, borer and other diseases are its pests.
How to control rice diseases and insect pests?
1. Control of Rice Leaf blast
When disease spots appear in the field, use 100 grams of 20% tricyclazole wettable powder, spray 45 kg of water; 30% clean seedling EC 15 ml, spray 45 kg of water, 50% sulfonazole 200-250 ml / mu, twice, once every 5-7 days.
two。 Control methods of White Leaf Blight and bacterial Leaf spot in Rice
When disease spots appear in the field, immediately apply pesticide control, medicament selection: 25% Chuanhua 018 wettable powder mu with 100 grams, 45 kg of water spray control, or agricultural streptomycin mu with 2 packets of 45 kg water spray control.
3. Rice sheath blight
The best period of control is booting stage. Medicament selection: Jinggangmycin 2 packets per mu of rice, spray control with 45 kg water, or spray control with 75% rice Quwangkuling wettable powder 40 grams per mu and 45 kg water; at the same time, 30% clean seedling EC 20 ml mixed with water 45 kg spray control.
4. Rice thrips
It is necessary to check in time to eliminate the rice thrips in the larval stage. Use 40% dimethoate emulsion 1500-2000 times per mu, and keep the water layer after application in seedling fields and fields. After the control of rice thrips, quick-acting fertilizer should be applied to promote the growth of seedlings and tillers.
The above is only an introduction to part of the content of rice pest control for your reference.
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