漯河地区小麦赤霉病发病原因及化学防治初探

小麦赤霉病是小麦生产中最主要的病害之一，严重影响小麦的产量和品质。漯河地区位于河南省中南部，属于北亚热带向暖温带过渡区，是小麦生产的特殊生态地区，近几年赤霉病的发生频率和为害程度均有所增加。本文初探了漯河地区小麦赤霉病的发病原因，主要有主栽品种易感赤霉病、菌源数量多、气候条件利于赤霉病发病、田间管理措施不佳、种植户应灾能力弱等因素；并对常见市售防治小麦赤霉病的化学药剂如多菌灵、戊唑醇、戊唑醇*咪鲜胺、氰烯菌酯、丙硫菌唑等进行了分析，提出选择不同作用机理的药剂轮换使用或者混配使用的建议,旨在为小麦赤霉病的防控提供借鉴。

Preliminary study on the pathogeny and chemical control of wheat scab in Luohe

Wheat scab is one of the most important diseases in wheat production, which seriously affects the yield and quality of wheat. Luohe region is located in the central and southern part of Henan Province, which belongs to the transition zone from north subtropical zone to warm temperate zone. It is a special ecological region for wheat production. In recent years, the occurrence frequency and damage degree of scab have increased. In this paper, the causes of wheat scab in Luohe area were discussed. The main varieties were susceptible to scab, the number of bacterial sources was large, the climate conditions were favorable for scab, the field management measures were poor, and the ability of farmers to cope with the disaster was weak. The common commercially available chemicals for controlling wheat scab, such as carbendazim, tebuconazole, tebuconazole and prochloraz, Phenamacril , prothionazole and so on, were introduced In order to provide reference for the prevention and control of wheat scab, the suggestions of alternative use or mixed use of agents with different mechanisms were put forward.