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施放烟雾剂防治温室大棚蔬菜病虫害,不仅操作简便,大大减轻了劳动强度,而且防效明显优于喷雾法,特别是不增加棚室内的湿度,对病害的防治较为彻底。技术要点如下:1.施药时间。在阳光照射下,植株表层温度与烟雾剂颗粒温度相同,烟雾不易沉积。施药效果就会大受影响。因此,施放烟雾剂最好在傍晚日落后进行。
Application of aerosol pesticide to prevent greenhouse pests and diseases of greenhouses, not only easy to operate, greatly reducing labor intensity, and the control effect is better than the spray method, especially does not increase the indoor humidity, disease prevention and control more thoroughly. Technical points are as follows: 1. Application time. Under sunlight, the surface temperature of the plant is the same as that of the aerosol particles, and the smoke is not easily deposited. Application effect will be greatly affected. Therefore, it is best to apply aerosol after sunset in the evening.