论文部分内容阅读
1 日光温室蔬菜病虫害呈上升趋势的原因1.1 菜农的科技文化素质不高由于蔬菜植保技术服务体系不完善,不少菜农对蔬菜常见病虫害特别是病害识别能力差,缺乏相应的防治知识,盲目用药加上农药经营者指导失误,人为误导,均加重了用药的混乱程度。施药不及时,造成防效差,加大用药量加速了抗药性的产生,不少菜农栽培管
1 reasons for the rising of greenhouse pests and diseases in solar greenhouse 1.1 science and technology of vegetable farmers is not high quality As the vegetable plant protection technology and service system is imperfect, many vegetable farmers common diseases and pests of vegetables, especially disease identification ability is poor, the lack of appropriate knowledge of prevention and treatment, On pesticide operators guidance errors, human misleading, are aggravating the degree of confusion in the medication. Application is not timely, resulting in poor control efficiency, increase the dosage to speed up the emergence of drug resistance, many vegetable cultivation tube