在塑料大棚生产中,因棚内高温高湿易引起病虫发生,对生产常造成损失。控制病虫危害,采用烟雾剂防治效果较好。其技术是: 一、施用时间:宜在傍晚日落后进行。因白天在日光照射下,植株表层温度高,烟雾颗粒不易沉积,影响药效。 In the production of plastic sheds, pests and worms can easily cause pests and diseases due to high temperature and humidity in the shed, which often causes losses to the production. Control pests and diseases, the use of aerosol prevention and treatment is better. The technology is: First, the application time: should be carried out in the evening after sunset. Due to daylight exposure to sunlight, the plant surface temperature is high, the smoke particles difficult to sediment, affecting the efficacy.