Precautions for using azamethiphos in winter
Pests cannot be avoided in crops. Farmers in cotton fields choose to spray high quality azamethiphos in winter to avoid the trouble of mud carp pests. Any precautions? Is there any other way to prevent lepidoptera pests? This article will give you the answer.
Azamethiphos is a brown colorless oily liquid, which is mainly used to control lepidopteran pests in cotton fields. In winter, the temperature is low, and the activities and hazards of pests and diseases are mostly hidden and static. As a high quality azamethiphos supplier, we will give you the following tips on spraying pesticides in winter to help your cotton fields better resist insects.
Precautions for spraying Azamethiphos in winter
Because pests have more food intake and breathing intensity than cold weather when the temperature is high in winter, the liquid medicine is sprayed on the body of the pests, and more drugs are brought into the body, which is conducive to exerting a poisonous effect.
Increase the amount of medicine appropriately
The pesticide lethal amount of pests is not constant. The lower the temperature at normal temperature, the lower the lethal dose of pests. Therefore, it is necessary to increase the dosage in winter to prevent pests from dying after taking medicine. The cotton farmer can determine the dosage of the medicine according to the temperature, but generally it does not exceed 50% of the conventional dosage. When applying pesticides in winter, add water strictly according to the dilution ratio, and do not increase or decrease the amount of water arbitrarily.
Extend the safety interval of crops
When pesticides are applied in winter, the degradation rate of pesticides slows down, and the residue recommendation period of pesticides in crops is relatively prolonged. When preventing and controlling vegetable crop pests and diseases in winter, special attention should be paid to extending the safety interval of pesticides to ensure human health.
Pay attention to the diluted medicine solution in each barrel
You can add 15 grams of "vegetable oil" or "pharmaceutical primer" agent, or a small packet of acidic substance as a binder. Note, do not apply pesticides into vegetables.
Important: Fatal if swallowed
Fatal in contact with skin
Except for the azamethiphos, do you want to know other ways to prevent the lepidopteran pests? Go on reading.
Other methods to combat lepidopteran pests
Meprophos and azamethiphos are both important insecticides against lepidopteran pests. Its mode of action is contact killing, no systemic fumigation, long lasting effect, and no cross-resistance to other organophosphates.
Suggestion: apply during the hatching period, use 50-75 ml of 72% meprofos EC per mu, diluted 1000 times for use.
Boll cotton is a kind of insect-resistant cotton, not insect-free cotton. It can kill the young larvae of lepidopteran insects, but has no killing effect on all other organisms in the cotton field. Namely, boll cotton has no effect on all pests, beneficial insects and diseases other than lepidopteran insects. The main pests in boll-protecting cotton fields are piercing and sucking mouthparts insects, such as the bug weevil, spider mites, thrips, cotton aphids and cotton leafhoppers. The reason is that boll-protecting cotton fields almost do not use pesticides to control cotton bollworms, which makes these pests that do not require special control in conventional cotton fields need to be controlled in boll-protecting cotton fields.
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