第1世代ニカメイチュウの幼虫およびさなぎ密度の変化に関する研究〔英文〕

スポンサーリンク

概要

• 論文の詳細を見る

• A population study of C. suppressalis was carried out at Takada, in 1954 and 1965,from June to August. In the former year, the main duration of larval hatching was comparatively short and, afterwards, the age constitutions of the borers changed rather regularly from young to old with the lapse of time. By following the analysis-of-variance procedures, it was clarified that larval density maintained unchanged for a month and this was succeeded by a drastical decline in the population. The year 1965 was characterized both by far lagged initiation of the infestation with the borer and by a remarkably low intensity of occurrence of the species. In this year, the maintenance of a stable larval density was also exhibited for a month but this was not succeeded by such a notable population decrease as seen in the previous year.

• 日本生態学会の論文
• 1967-08-01

著者

• Otake Akio

  Hokuriku Agricultural Experiment Station : Present Address : Shikoku Agricultural Experiment Station

関連論文

• Analytical Studies of Light-Trap Records in the Hokuriku District : I The Rice Stem Borer, Chilo suppressalis WALKER (Lepidoptera : Pyralidae)
• 第1世代ニカメイチュウの幼虫およびさなぎ密度の変化に関する研究〔英文〕
• An Analytical Study on the Injury to Rice Plants by the Rice Stem Borer, Chilo suppressalis WALKER (Lepidoptera : Pyralidae) in Its First Generation

スポンサーリンク