Conservation of Greenhouse Vegetable Powdery Mildew

To combat powdery mildew, we must strictly implement the plant protection policy of “prevention-oriented and comprehensive prevention and control.” In addition to the full implementation of various prevention and control measures for soil-borne diseases, we must also do a good job of ecological control and chemical prevention.

Ecological control should pay attention to the regulation of indoor temperature and humidity, indoor temperature should be maintained at 32 °C or more during the day, at night as much as possible to reduce the indoor temperature to the lower limit of the crop temperature, to minimize indoor humidity, to create a high temperature and low humidity or low temperature and humidity in the greenhouse environment, Inhibit the germination of conidia and reduce the incidence. If cultivated zucchini, the night temperature can be lowered even more, as long as the indoor temperature is not lower than 6 °C in the early morning, it can effectively prevent the germination of conidia, without affecting the growth of zucchini.

Chemical control should be promptly administered, and it can be used: 10% of Sego 2000~3000 times, 15% Triadimefon 1500~2000 times, 30% Aimiao Emulsion 4000~5000 times, 25% Amisite suspension agent 3000 times Liquid, 40% Fuxing 6000 to 7000X, 12.5% ​​TePPZ 2500X, 30% Teflon 1500X, 70% thiophanatex 800x, each 1000x and 1000x respectively. 2116" used together, alternating spray, spraying once every 5 to 7 days, 3 to 4 times in a row. As long as the spraying is even and uniform, the occurrence of powdery mildew can be effectively controlled.

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