重庆地区马铃薯病虫害的损失调查及植保贡献率的研究

Investigation on Potato Diseases and Insect Pests in Different Conventional Vegetable Growing Areas in Chongqing and Research on the Contribution Rate of Plant Protection

为明确重庆地区马铃薯病虫害发生特点和分布情况以及植保工作在马铃薯提质增产中的贡献,本研究在重庆5个地区(酉阳、彭水、巫山、铜梁和武隆)进行田间药效试验.结果发现病害的防治效果达73.62%~84.50%,虫害的防治效果达71.35%~84.19%,挽回产量损失550.14~1 080.17 kg/667m~2,植保贡献率达28.34%~65.70%.本研究对正确评估植保工作,推进马铃薯病虫害的持续控制在马铃薯提质增产中的积极作用具有重要意义.

In order to clarify the occurrence characteristics and distribution of potato diseases and pests in Chongqing and the contribution of plant protection to potato quality and yield improvement, field efficacy tests were conducted in five regions of Chongqing(Youyang, Pengshui, Wushan, Tongliang and Wulong). The results showed that the control effect of disease was 73.62%-84.50%, the control effect of insect pest was 71.35%-84.19%, the recovered yield loss was from 550.14-1 080.17 kg/667 m~2, and the contribution rate of plant protection was 28.34%-65.70%. This study is of great significance to correctly evaluate the plant protection work and promote the positive role of continuous control of potato diseases and pests in potato quality and yield improvement.