机插稻白背飞虱种群自然消长动态的初步研究

Preliminary study on the natural population dynamics of Sogatella furcifera Horvath in transplanter planting rice

为搞好水稻机械化插秧技术的推广和白背飞虱的防治,2006年特进行了机插稻白背飞虱种群自然消长动态的研究。结果表明:机插稻白背飞虱种群自然消长动态呈季节性单峰型消长,前中期虫量偏高,主害代发生偏重。运用晒田等农业措施和合理应用天敌,可有效减轻白背飞虱的发生和危害程度,促进"绿色植保"发展。

In order to do a good job in mechanized rice planting seedlings technology promotion and Sogatella furcifera Horvath prevention and treatment work in 2006, Sogatella furcifera Horvath natural population dynamics were studied in transplanter planting rice. The results showed that water intercalation rice transplanter planting the Sogatellafurcifera Horvath the natural population dynamics： a single-peak seasonal fluctuation of rice pest Honda early and mid-volume high, and the harm occurred biased towards. Dormancy and other agricultural prevention measures and reasonable application of natural enemies, could effectively alleviate Sogatella furcifera Horvath the occurrence and extent of harm,and promote ＇ green plant protection＇ development.