沿海地区直播稻有害生物发生特点及控制策略

Occurring Characteristics and Controlling Guideline of Pest of Direct Seeding Rice in Coastal Areas

沿海地区直播稻与移栽稻之间有着不同的生育进程,有害生物发生特点表现为发生种类多,危害主次中有更迭,杂草已经成为直播稻稳产的主要障碍,气候型和迁飞性病虫防治重点后移。应在准确预测预报的基础上,采取农业措施与化学防治相结合、专项治理与阶段性统防统治相结合的控制策略,选准选对高效药剂,确保直播稻稳产。

There was different growth process between the transplant and the direct seeding rice. The occurring characters of pest include more of varieties, the change of ponderance order, the postponed of major period of controlling of climatic and migrate pest. As well as the weeding would be the mainly disadvantage factors which effected the stability of yield. So in order to insuring the yield steadily, the controlling guideline should be combinative of agriculture measure and pesticide, with special methods and stage controlling in based on the correcting selecting of pesticide.