Reproductive response of caged adult velvetbean caterpillar and soybean looper to the presence of weeds
Document Type
Article
Publication Date
1-1-1985
Abstract
Greenhouse studies on the relationship of soybean looper, Pseudoplusia includens (Walker), moths to different nectar-producing plants resulted in greatest egg production from moths exposed to cotton. A similar experiment indicated an increase in egg production by the velvetbean caterpillar, Anticarsia gemmatalis (Hübner), when moths were exposed to increased densities of hemp sesbania, Sesbania exaltata (Raf.). In field cage experiments conducted, fecundity of both soybean looper and velvetbean caterpillar was significantly higher (P < 0.05) when exposed to soybean with weeds. Soybean looper moths had a mean of 163.3 and 86.7 eggs in ovaries when exposed to weedy and weed-free soybean, respectively. Ovaries of velvetbean caterpillar moths contained a mean of 107.5 and 27.2 eggs when exposed to weedy and weed-free soybean, respectively. Weed management strategies to minimize benefits to flower-feeding pests and to enhance natural enemies in cotton are discussed. © 1985.
Publication Source (Journal or Book title)
Agriculture, Ecosystems and Environment
First Page
139
Last Page
149
Recommended Citation
Collins, F., & Johnson, S. (1985). Reproductive response of caged adult velvetbean caterpillar and soybean looper to the presence of weeds. Agriculture, Ecosystems and Environment, 14 (1-2), 139-149. https://doi.org/10.1016/0167-8809(85)90091-X