Don't be blind! Pesticide is an exquisite thing! It is impossible to mix three correctly.

Pesticide is a fastidious thing, disciplined medicine, insecticidal and disease prevention at the same time must be ingenious use in order to play the greatest role, otherwise blindly mixed with the mood, will not only reduce the efficacy, but also burn crops, today, the editor told you what problems to pay attention to when mixed use of pesticides!

Organophosphorus, carbamate, pyrethroid insecticides and disulfide carbamate derivative fungicides (thiram, mancozeb, mancozeb, etc.) pesticides can decompose under alkaline conditions, so they can not be mixed with alkaline pesticides. These agents should not be mixed with alkaline stone sulfur mixture and Bordeaux solution. (however, acaricide Nisolan has the advantage of being mixed with alkaline agents, which is not included.) most organic sulfur fungicides are sensitive to acid reaction and should be used carefully.

Some pesticides can not be mixed with drugs containing metal ions, such as methyl topiramate, disulfide carbamate fungicides, etc., should not be mixed with copper preparations.

1. Drug damage caused by mixed use should not be mixed.

The mixture of stone sulfur mixture and Bordeaux liquid, dithiocarbamate fungicide and copper preparation, thiram, Dysen ring fungicide and alkaline drugs will produce substances that cause serious drug damage to crops, so they can not be mixed.

Second, pesticides with cross-resistance should not be mixed.

For example, fungicides carbendazim and methyl topiramate have cross-resistance. Mixed use not only can not delay the emergence of drug resistance, but will accelerate the emergence of drug resistance, so it can not be mixed.

Third, physical properties can not be mixed with those whose physical properties have been changed

When mixing pesticides, attention should be paid to whether the physical properties of different components are changed. after mixing, stratification, flocculation and precipitation, emulsion destruction, suspension rate reduction and even crystallization precipitation can not be mixed. When the EC is mixed with the water agent, the water agent solution can be mixed first, and then the emulsion solution can be prepared with the water agent solution. Some acidic water pesticides containing a lot of inorganic salts will be demulsified when mixed with EC pesticides, so it is forbidden to mix them. When organophosphorus wettable powder is mixed with other wettable powder, the suspension rate will decrease, which is easy to cause drug damage, so it is not suitable for mixed use.