At present, it is the best period for the occurrence of pests and diseases in rice planting. At this time, all growers need to prevent flooding and drought prevention. The most important thing is to prevent and control insects. Today, Xiaobian will analyze the prevention and control measures of common pests and diseases in rice. .
1 Rice disease control <br> Rice disease becomes an important factor in the yield of the limiter. The common disease is rice blast, which can cause rice production to decrease by more than 20%. The harm can be seen. If the rice field encounters Rice blast, if not timely controlled, will result in the loss of rice fields and serious economic losses.
1.1 Prevention and control of leaf rice blast
If it is found that the rice blast disease occurs in the rice field, it is necessary to use 20% tricycloazole wettable powder 100g, water 45kg, to make a concentrated liquid, spray spray to rice; also use 15ml of emulsified milk, and blend 45kg Prepare a solution to spray rice; in addition, use 50% thiazole solution, spray 200~250ml per acre of rice field, continuous spraying can achieve better results.
1.2 Prevention and control of rice blasts <br> For the control of rice blast, under normal circumstances, the best treatment period is the breach period. The choice of the agent may be 75% of the tricyclazole wet acne 309, or 21.2% of the heat must be used 100g, either one of the two agents, and the appropriate amount of water needs to be mixed, and then The rice field is sprayed and the interval between each spray is 5-7 hours.
2 rice pest control
2.1 Control of rice aphids <br> Rice that has been harmed by rice mites will show that the white ear is alive and dry. For the control of rice aphids, it is necessary to use a phobic WP, which is mixed with water and then sprayed. Prevention and treatment; quetiapine emulsifiable concentrate and water can also be used for dissolution control; the control effect is good.
2.2 Prevention and control of armyworms<br> The armyworms are more harmful to rice. At the same time, armyworms are migratory pests, and their larvae cause large-scale foraging of rice leaves, resulting in rice leaf defects or even falling off. For the control of armyworms, the drugs to be used include:
(1) 50% of the second eucalyptus emulsifiable concentrate, the acre is mixed with 50 ral and 45 kg of water, and spray control is carried out.
(2) 2 enemy kills the emulsifiable milk with 40ml, mixed with water for spray control.
During the rice planting process, both pests and diseases will seriously affect the growth of rice. Therefore, all growers must take precautions against pests and diseases in advance at this critical period to ensure high yield of rice.
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