Experts teach you how to develop resistance to pests

If we use the same drug to kill pests for a long time, pests are likely to develop resistance. Here are some ways to solve the problem of resistance to pests:
First, the rotation of drugs should not be used for a long time to use a certain pesticide to control certain pests, so that the formation process of pest-resistant populations can be cut off. Varieties should be used in rotation using a different mechanism of action of pesticides as much as possible. Such as organophosphorus pesticides, pyrethroid pesticides, carbamate pesticides, biological pesticides, etc., the insecticidal principles are different, can be used interchangeably. The rotation of the same type of pesticide should be used with caution, because the pest is easy to obtain cross-resistance, that is, after resistance to a certain pesticide, it will also be resistant to other varieties of the same kind.
Second, the mixed use of two different modes of action and the use of pesticides mixed with different mechanisms, can slow the occurrence of pest resistance, even if drug resistance has been formed, mixed drugs can inhibit the drug resistance. In the past, the successful combination of drugs was: trichlorfon, dichlorvos and malathion mixed; pyrethroid insecticide mixed with organophosphorus insecticide; trichlorfon and phoxim mixed; oil emulsion and Mixed with organophosphorus pesticides .
It must be noted that the mixed pesticides can not be used for a long time alone, and should be rotated. Otherwise, there is also a risk of causing drug resistance, and even the pests may cause multiple drug resistance.
3. Intermittent use or deactivation of pesticides When a pesticide has already caused resistance to certain pests, if the pesticide is stopped for a period of time, the resistance of the pest will gradually decrease or even disappear. For example, some organophosphorus pesticides cause resistance to red spiders. After several years of inactivity, the resistance of spider mites can almost disappear. In this way, the effect of the medicament can still be restored.
4. Adding synergist Adding synergist to the pesticide can obviously activate the pesticide, improve the efficacy, delay and inhibit the resistance of the pest. For example, adding a small amount of diesel to the omethoate to control the scale insects can dissolve the clam shells and make the pesticides enter the pests, overcoming the resistance of the scale insects to omethoate. In addition to oily substances, commonly used synergists are neutral detergents, soy milk, vegetable oils and the like.
V. Diversified application methods The use of pesticides In addition to conventional spraying, other methods can be used, such as mixing toxic soil, making bait, soil application, applicator, dripping, smoking, etc. Different methods of administration Alternating to help prevent and overcome the resistance of pests.
Sixth, the development of the use of soil pesticides and pesticides raw materials from a wide range of sources, simple to make, will not induce resistance to pests. At present, the soil pesticides to be developed are mainly plant pesticides such as tobacco, ramie, garlic, pepper water, and leek. In addition, washing powder, oil, quicklime, caustic soda, rosin, etc., these are good raw materials for the deployment of soil pesticides.
These are the six ways to solve the problem of pest resistance and I hope to help you.