A、Choose most suitable apply time
You can choose applying time according to the activity habits of pests, such as moth pests such as leaf rolls are active at night, preventing and treating such pests should be applied in the evening.
B、Choose right pesticides type
In the rainy season, protective, internal absorption, speed -effective, and resistant -brushing agent should be selected.
1、Protective pesticides
Before the pathogen infection, spray on the surface of the plant to play a protective effect. Such as Carbendazim , Thiram,Triadimefon.Captan,Etc
2、Quick -acting pesticide
Quick -acting pesticides have a strong touch and fumigation effect. It can kill the pests in about 2 hours after administration, which can effectively avoid reducing the efficacy due to rainwater washing. Such as Deltamethrin ,Malathion, Dimethoate etc.
3、Internal absorption pesticide
Internal pesticides can enter the plant body through the roots, stems, leaves and other parts of the crops and transport them to other parts. After 5 hours of application, such pesticides can be absorbed by the crops nearly 80%of the active ingredients. It will work within the time, and it is very small due to precipitation.
Such as Thiophanate methyl ,Difenoconazole ,Propiconazole ,Metalaxyl .etc.
4、Rain-resistance pesticide
2-3 hours after application, even if it encounters heavy rian, it does not affect the effect of pesticide ,such as Chlorpyrifos ,chlorothalonil,Azoxystrobin
Post time: Oct-27-2022
