Characteristics of Oviposition of Diamondback Moth (Lepidoptera: Yponomeutidae) on Cabbage

小菜蛾在甘藍上之產卵研究

Narayan S. Talekar ； 劉淑惠(Shu-Huei Liu) ； 陳千蕾(Chian-Leei Chen) ； 尹怡斐(Yii-Fei Yiin)

《Zoological Studies》 33卷1期 (1994/01) Pp. 72-77

摘要

本文乃針對十字花科蔬菜害蟲小菜蛾之產卵行為，在室內及田間作一系列之研究。小菜蛾主要產卵在甘藍之外葉，其產卵數由外至內葉逐漸減少。在白菜葉片絨毛密度每9平方公釐為1 -11根之間時，產卵數隨絨毛密度之增加而增加。小菜蛾產卵之主要時間乃在日落後之兩小時內，這段時間亦是其交尾之盛期。在一天中正常之光照下通常不產卵，其產卵行為乃因黑暗所刺激。然而，當其在一天中黑暗之情形下產卵時，即使給予光照處理，亦不會降低其產卵數。

關鍵字

絨毛 ； 產卵時期 ； 產卵刺激 ； 產卵位置 ； 小菜蛾

並列摘要

Several laboratory and field experiments were conducted to understand the oviposition behavior of the diamondback moth [Plutella xylostella (L.)), a destructive pest of crucifers throughout the world. Diamondback moth lay eggs mainly on cabbage plant outer leaves. On outer leaves, eggs are laid mainly on the upper leaf surface; on inner leaves they are laid on the lower leaf surface. Egg density decreased from outer to inner leaves. Within a range of 1-11 trichomes per 9 sq. mm leaf area, the number of eggs laid on Chinese cabbage leaves increased with trichome density. Most oviposition activity took place within two hours after sunset; this period coincides with maximum mating-related flying activity. During daylight hours when the diamondback moth does not normally lay eggs, initiation of darkness stimulated oviposition. However, during night when this insect normally lays eggs, artificial light did not reduce oviposition activity.

並列關鍵字

Trichomes ； Oviposition periodicity ； Oviposition stimulation ； Oviposition location ； Plutella xylostella