温室秋冬茬番茄定植后主要病虫害及防治

The Control of Main Diseases and Insect Pests of Tomato in Greenhouse after Planting

由于高温干燥和阴雨天气交错变化频繁,且棚室几乎全部采用开放式管理方式,温室秋冬茬番茄定植后到温室全封闭管理期间属于病虫害发生流行高风险时段,是茎基腐病、灰叶斑病、病毒病发生流行的主要时期,也是蓟马和粉虱向棚内转移增殖、危害的关键时期。做好这一阶段病虫害防治工作,有利于降低后期番茄病虫害的防治压力。该文对这一时期主要发生的几种病虫害危害特点加以介绍,并从栽培、物理、生物、药剂等防治角度罗列针对性的防治措施,以期为相关工作者提供参考。

Because of the frequent alternation of high temperature,dry weather and rainy weather,and most of the greenhouse are uncovered,the period between planting untill the greenhousse totally enclosed is a high risk period for the occurrence of diseases and insect pests,which is the main period for the occurrence and prevalence of stem base rot,gray leaf spot and virus diseases,it is also the key period for thrips and whitefly to transfer and multiply into the greenhouse.Doing the pest and disease control work well at this stage is beneficial to release the pressure of the following planting operations.In this paper,the characteristics of several main diseases and insect pests occurred in this period were introduced,and the corresponding control measures were listed from the aspects of cultivation,physics,biology and medicament,with a view to providing reference for the relevant workers.