2. Alternate use For the same pest, the pesticides with different varieties and the same efficacy will be alternately sprayed, which can overcome the resistance of insect pests and achieve good control effect. For example, aphids and spider mites can be used alternately with enemy cockroaches, chlorpyrifos, methamidophos, and phoxim.
3, mixed spray treatment Sometimes crop pests and diseases can occur several kinds at the same time, in order to achieve the purpose of concurrent treatment, you can scientifically select one or two pesticides to control pests and diseases for use with the mix, so as to achieve the "one arrow double sculpture" control effect.
4. Focus on spraying.
Because the occurrence of pests and diseases of crops and fruit trees in the same plot is different, it is not effective to treat them equally in the prevention and control process. Therefore, it is possible to achieve more effective results in the prevention and control of plants with serious pests and diseases. This method has a better effect on the red spiders of cotton and vegetables.
5, the application of pesticides Any kind of pests and diseases have their symbiotic laws, should choose the right pesticides and the best time to prevent, timely and comprehensive poisoning and prevention.
6, a drug and the treatment of a broad spectrum of low toxicity, high efficiency, less residual pesticides can cure a variety of pests and diseases. For example, organophosphorus pesticides have special effects on insect pests such as red bollworm, aphids, thrips, and planthoppers. Once these kinds of pests occur, they can be treated with one spray.
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