버들바구미 생태(生態)에 관(關)한 연구(硏究)

Studies on the Bionomics of the Poplar and Willow Borer (Cryptorrhynchus lapathi Linne)

1. 버들바구미는 1년에 1회 발생한다. 2. 용화시기는 6월중순부터 7월중순까지이다. 3. 성충우화 시기는 7월상순부터 8월중순까지이다. 4. 성충의 크기는 평균(♀) 8.5cm, (♂) 7.9cm이며 용의크기는 평균 11.3cm이다. 5. 성충의 수명은 평균 ♂30, ♀40일이다. 6. 피해 갱도의 길이는 평균 10.3cm이다. 7. 피해는 직경 6.5cm의 어린나무에 많다. 8. 산란시기는 7월부터 8월사이다.

In the light of the fact that Cryptorrhynchus lapathy Linne (Coleoptera: Cur-culionidae) is an important past of poplar in korea the Bionomics of the insect were studied to get some basic informations for controlling the insect. The results obtaind are as follows; 1. The poplar and willow borer has one generation in a year overwintering with egg. 2. The pupation stage was from the middle Julne to the middle July. 3. The adult appears from the early July to the middle August. 4. The average length of body of adult was about 8.5cm with female, 7.9cm with male and the length of pupa was about 11.3cm. 5. The average longevities of adults were about 30 days with mate and 40 days with female. 6. The length of damage hole were about 10.3cm. 7. The egg-laying period was from July to August.