Why greenhouse cucumber is prone to phytotoxicity?

In greenhouse cucumber production, due to the continuous cultivation of many crops, as well as the unique microclimate conditions, the temperature and humidity are large, and it is easy to induce disease. At the same time, cucumbers are more sensitive to pesticides than general crops and have poor drug resistance. Improper use of pesticides can easily cause injury. Therefore, in order to reduce the occurrence of phytotoxicity, the following issues should be noted. (1) Change crops as much as possible to reduce the occurrence of diseases. It is also possible to reduce the occurrence of diseases by increasing organic fertilizers to cultivate strong seedlings or treating soil to eliminate pathogens. (2) The right medicine, use selective agents, pay attention to the quality of the drug, the concentration of the application should not be arbitrarily increased. At the same time try to mix pesticides, rotate drugs, do not use a single pesticide for a long time, reduce the number of applications. (3) Gibberellin can be sprayed to ease the injury to cucumbers that have already suffered from phytotoxicity.

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