Vegetable pests are resistant to drugs, which can significantly reduce control effectiveness. It is therefore important to avoid or delay pest resistance.
When mixed with other drugs, such as systemic drugs and contact agents, the time for the insects to develop resistance to systemic drugs will be greatly delayed; the use of complementary drugs can also delay the resistance of insects and insects. , Control efficiency improved significantly. 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 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, different principles of insecticidal disinfection, once used can significantly improve the control effect.
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