旱育抛秧是把旱育秧与抛植结合起来的一种轻型栽培技术，水稻秧苗期及大田期的生长环境、长势长相均发生了显著变化，对其主要病虫害的发生发展产生了一定影响。对此，我们进行了专题调查和分析。一、旱育抛秧田生育前期病虫特点1．一代二化螟明显减轻分析原因：一是旱育秧田一 It is a kind of light-cultivation technique combining drought-nursery seedling with throwing-planting. The growth environment and long-term growth of rice seedling stage and field stage have significant changes, which have a certain impact on the occurrence and development of the main pests and diseases. In response, we conducted a special survey and analysis. First, nursery and throwing seedling characteristics of early pests and diseases 1. Generation of Chilo suppressalis significantly reduce the analysis of reasons: First, dry nursery seedling one