Clever selection: On the one hand, we should pay attention to the selection of pesticides with strong systemic absorption, such as insecticidal mites, sedum, saponin, carbendazim, carbendazim, thiophanate, triadimefon, ethylphosphorus, etc. After being absorbed by the stems and leaves of the crop, it can be quickly transmitted to various parts of the plant, and its efficacy is less affected by rainfall; trichlorfon, anti-carbocarb, quetiapine, chlorpyrifos, fluvalinate, green milk copper, generation Although pesticides such as ammonium chloride have no systemic conduction, they have strong penetrating power and anti-scour ability on the surface of the crop, and are therefore suitable for application in the rainy season. It has been reported that the application of the leaves to the crops for 2 hours can produce a systemic conduction effect; half an hour after the green milk copper spray and 1 hour after the tricyclic azole spray, there is no effect on the efficacy.
On the other hand, it is necessary to pay attention to the selection of quick-acting pesticides with strong knockdown force, such as phoxim, dichlorvos, omethoate, anti-èšœå¨, 速 å¨, ç å¨, ç多å¨, 广克å¨, æ–°çå¨And pyrethroid pesticides. After the application of such pesticides, the prevention and control of pests and diseases can be quickly exerted, thereby avoiding or reducing the leaching of the medicament by rainwater. According to some data, the aphids on the crops can be killed in a few minutes after the application of the anti-Suiwei; the rice pests are controlled by the mixed-killing, and most of the pests fall into the water a few minutes after the application.
Skillful application: The rainy season is often the most common season for various field crops, fruit trees, vegetables and other pests and diseases. When applying pesticides, it is necessary to pay attention to spraying in the rainless period; under normal circumstances, if it is rained within 24 hours after spraying, it should be re-sprayed once, and the spraying concentration should be appropriately reduced during heavy spraying.
Cohesive: Adding an adhesive to the agent to enhance the adhesion of the pesticide on the stems and leaves of the crop, and improve the control effect; soy flour, polyvinyl alcohol, skin glue, etc. are commonly used adhesives.
On the other hand, it is necessary to pay attention to the selection of quick-acting pesticides with strong knockdown force, such as phoxim, dichlorvos, omethoate, anti-èšœå¨, 速 å¨, ç å¨, ç多å¨, 广克å¨, æ–°çå¨And pyrethroid pesticides. After the application of such pesticides, the prevention and control of pests and diseases can be quickly exerted, thereby avoiding or reducing the leaching of the medicament by rainwater. According to some data, the aphids on the crops can be killed in a few minutes after the application of the anti-Suiwei; the rice pests are controlled by the mixed-killing, and most of the pests fall into the water a few minutes after the application.
Skillful application: The rainy season is often the most common season for various field crops, fruit trees, vegetables and other pests and diseases. When applying pesticides, it is necessary to pay attention to spraying in the rainless period; under normal circumstances, if it is rained within 24 hours after spraying, it should be re-sprayed once, and the spraying concentration should be appropriately reduced during heavy spraying.
Cohesive: Adding an adhesive to the agent to enhance the adhesion of the pesticide on the stems and leaves of the crop, and improve the control effect; soy flour, polyvinyl alcohol, skin glue, etc. are commonly used adhesives.
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