Rotation medication
Do not use a certain type of pesticide to control a certain pest for a long period of time. In this way, the formation process of pest-resistant populations can be cut off. Rotating varieties should use pesticides with different mechanisms of action as much as possible. Such as organophosphorus pesticides, pyrethroid pesticides, carbamate pesticides, biological pesticides, etc., the principle of insecticide is different, can be used interchangeably. The use of the same type of pesticides in rotation should be used with caution, because pests can easily obtain cross-resistance, that is, when they become resistant to certain pesticides, they will also develop resistance to other pesticides of the same type.
Mixed medication
The combination of two pesticides with different modes of action and mechanisms can slow the rate of occurrence of pest resistance. Even if drug resistance has been established, mixed drugs can inhibit the drug resistance. In the past, the most successful options for mixed use were: dipterex, dichlorvos and malathion; mixed use of pyrethroid insecticides and organophosphorus insecticides; use of trichlorfon and phoxim; use of oil emulsions. Organic phosphorus insecticide mixed etc.
It must be noted that compounded pesticides cannot be used for a long period of time and they must be used alternately. Otherwise, there is a danger of causing drug resistance, and even triggering pests to produce multiple drug resistances.
Intermittent use or deactivation of pesticides
When a pesticide has caused resistance to a certain pest, such as stopping the use of the pesticide for a period of time, the insect resistance will gradually decline or even disappear. For example, some organophosphorus pesticides cause resistance to spider mites. After several years of decommissioning, the drug resistance of spider mites can basically disappear. In this way, the effect of the medicament can still be restored.
Add synergist
The addition of synergists to pesticides can significantly activate pesticides, increase drug efficacy, and delay and inhibit pest resistance. If a small amount of diesel oil is added to the omethoate to control the scale insects and soluble oyster shells, the pesticides will enter the insects and overcome the resistance of the insects to omethoate. In addition to oil substances, commonly used synergists are neutral detergent, soy milk, vegetable oil and so on.
Diverse application methods
In addition to conventional sprays, pesticides can be used in other methods such as mixed soils, baits, soil application, applicators, drops, smoke, etc. Different methods of drug use alternately to help prevent and Overcoming pests produce drug resistance.
Development and use of pesticides
Soil pesticides have a wide range of sources and are simple to produce, and do not induce resistance to insect pests. At present, the soil pesticides to be developed are mainly plant-based pesticides such as tobacco, ramie, garlic, pepper water, and leeks. In addition, washing powder, oil, quicklime, caustic soda, rosin, etc., these are good raw materials for the allocation of soil pesticides.
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