麦红吸浆虫老熟幼虫脱颖规律研究

Studies on falling out of glumes of the mature larvae of wheat red blossom midge

麦红吸浆虫老熟幼虫的脱颖率与湿度成正比，在湿处理，特别是有水滴的情况下，脱颖率最高；脱颖率与光照强弱成反比，在散射光条件下可以脱颖，黑暗条件下脱颖率最高，强光下基本不脱颖；脱颖率与温度的关系较湿度、光线为小，5～35℃脱颖率均较高，高峰区在7～20℃，最高在10℃左右。

The rate of falling out of glume of the mature larvae of wheat red blossom midge was in direct proportion to humidity. The highest rate was observed under the conditions of over-saturated humidity, especially when the droplets of water were present. It was in inverse proportion to luminance. The larvae fell out of the glumes under scattering light. The highest rate was recorded in darkness. It was rare that the larvae fell out of the glumes under strong light. The correlation between the rate of fallin-out and temperature was less significant than that between the falling-out rate and humidity and light. The falling-out rate was high under 5-35℃, with the peak at 7-20℃ and the top at about 10℃.