Powdery mildew has recently been common in greenhouse vegetables, especially on zucchini, cucumbers, melons, and other melon crops. It is also very common in tomatoes, eggplants, and peppers.
Powdery mildew can take the following technical measures in ecological control and chemical prevention and control:
Ecological control should pay attention to the regulation of indoor temperature and humidity. During the day, the indoor temperature should be kept above 30°C. At night, try to reduce the indoor temperature to the lower limit of the crop's suitable temperature, minimize the indoor humidity, and use high-temperature low-humidity and low-temperature low-humidity suppression. Spore germination, reduce the incidence. If cultivated zucchini, the night temperature can be lowered even more, as long as the indoor temperature in the morning is not lower than 6 °C, it can effectively prevent the germination of conidia, without affecting the growth of the zucchini.
Chemical control should be promptly administered. Before flowering, available: Tianda 2116 Zengmiaoling 4000 times liquid + 99% Tianda hymexazant 6000 times, spraying once every 10-15 days, even spraying twice, can effectively control white powder The occurrence of disease and downy mildew.
If flowering occurs, use: 10% of Sego 2000-3000 dilution or 30% Ai Miao 4000-5000 dilution + Tianda 2116 spray alternately, spray once every 10-15 days, spray twice.
Shenzhen Sunson Tech Co., Ltd , https://www.sunsonkiosk.com