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Mixed with other drugs
If the systemic compound is mixed with the contact agent, the time that the insects develop resistance to the systemic drug will be greatly delayed; the compound drug application can also delay the resistance of the insects, resulting in significant control effect. improve. If carbendazim is mixed with etchant, the fungal resistance to carbendazim will be killed by Witbol, ​​while the resistance to Witbol may be killed by carbendazim. After this mixture, the resistance to carbendazim and diethofencarb was significantly reduced.
Make full use of effective low concentration
The effective low concentration is the one with good effect and the lowest concentration. The administration of a drug starts from an effective low concentration and it is not advisable to increase the concentration arbitrarily. The vegetable farmer should use the effective low concentration of the instructions, or reduce the application concentration after the test, so that the amount of the drug is less. As long as the effect is good, the application concentration should be reduced boldly. If the recommended concentration of the pesticide is 600 times, and the test proves that the control effect is still excellent at 1000 times, it should be used from 1000 times.
Mixed synergist
Mixing synergists is an effective way to reduce the resistance of pesticides. The use of drugs has not been used for many times and the number of times has not increased. The effect is particularly good, and the resistance of pests and insects is difficult to produce quickly. Can also be added to increase the adhesion, permeability and exudative, change the pH of the meal detergent, neutral detergent, mineral oil, vinegar, etc., which can be used as replacements.
Change drug type
Replacing different kinds of drugs is the first choice to solve the disease resistance of pests and diseases, and the situation of poor control effect can be changed immediately. Different types of drugs, the principle of insecticidal bactericidal is different, once used can significantly improve the control effect.
How to avoid resistance to vegetable pests
The resistance of a vegetable pest to a drug will result in a significant decrease in control effectiveness, so it is important to avoid or delay the emergence of resistance to pests. To avoid pest resistance, the following methods can be used: