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1961—1963年在安徽省五河县对小地老虎进行了越冬调查,现将结果简报于后。 1.越冬虫态 三年来均以蛹及幼虫越冬。其比例是:蛹分别为47.2％,48.1％和79.0％;老熟幼虫为31.5％,32.0％和16.2％;低龄幼虫为19.9％,21.3％和4.8％。人工饲育低龄幼虫的安全越冬率是18.5％。 同时发现成虫也有越冬的可能。1961年2月21日在新集公社大庄生产队的草垛内捕得未活动成虫2头;1962年2月24日在红旗公社高粱秸垛内捕获1头活动成虫,1963年3月4日从作者宿舍内芦席搭的
From 1961 to 1963 in Wuhe County, Anhui Province, a small to the tiger overwintering survey, the results of the briefing later. Overwintering pest state in three years are overwintering pupae and larvae. The ratios were: 47.2%, 48.1% and 79.0% for pupae; 31.5%, 32.0% and 16.2% for mature larvae; and 19.9%, 21.3% and 4.8% for young larvae, respectively. The safe overwintering rate of artificial feeding young larvae was 18.5%. Also found that adults may also be overwintering. February 21, 1961 in the commune commune Dazhuang production team hawk capture two uninvolved active adults; February 24, 1962 in the red commune sorghum stalk capture 1 activity adult, March 4, 1963 From the author dormitory reed ride