Jost Douglas J, Pitre Henry N
Department of Entomology and Plant Pathology, Mississippi State University, 39762, USA.
J Econ Entomol. 2002 Apr;95(2):286-93. doi: 10.1603/0022-0493-95.2.286.
Soybean looper, Pseudoplusia includens (Walker), oviposition in cotton, Gossypium hirsutum L., and soybean, Glycine max (L.) Merr., of various stages of plant phenological development was evaluated in field cages in 1994, 1995, and 1996. Overall, females preferred to oviposit on soybean over cotton when both crops were compared in vegetative or prebloom stages, when both crops were blooming, and when soybean was blooming or in early pod stage compared with prebloom cotton. Females preferred to deposit eggs on the lower leaf surface in the upper two-thirds of the plant canopy in cotton and soybean. Oviposition in upper and middle canopy levels varied with plant growth stage. Females tended to lay more eggs in the upper canopy compared with the middle canopy in prebloom cotton and vegetative soybean; more eggs were laid in the middle canopy of blooming cotton and reproductive stages of soybean. Females responded to both cotton and soybean volatiles in an olfactometer. There was no significant difference in response to the two sources of volatiles.
1994年、1995年和1996年，在田间网室中评估了豆夜蛾（Pseudoplusia includens (Walker)）在处于不同物候发育阶段的棉花（Gossypium hirsutum L.）和大豆（Glycine max (L.) Merr.）上的产卵情况。总体而言，当在营养生长或初花期比较这两种作物时、当两种作物都开花时、以及当大豆开花或处于结荚初期而棉花处于初花期时，雌性豆夜蛾更喜欢在大豆上而不是棉花上产卵。雌性豆夜蛾更喜欢将卵产在棉花和大豆植株冠层上部三分之二的下部叶片表面。冠层上部和中部的产卵情况随植物生长阶段而变化。在初花期的棉花和营养生长阶段的大豆中，雌性豆夜蛾倾向于在上部冠层比中部冠层产更多的卵；在开花期的棉花和大豆的生殖阶段，更多的卵产在中部冠层。在嗅觉仪中，雌性豆夜蛾对棉花和大豆的挥发物都有反应。对这两种挥发物来源的反应没有显著差异。
