Reference Report for IND20356048
| Title: | Influence of successional and grassy corridors on parasitism of Plathypena scabra (F.) (Lepidoptera: Noctuidae) larvae in soybean agroecosystems. |
| Authors: | Pavuk, D.M., Barrett, G.W. |
| Source: | Environ. Entomol. 1993, 22(3):541-546 |
| Abstract: | Influences of uncultivated corridors on rates of parasitism of the green cloverworm, Plathypena scabra (F.), in soybean agroecosystems were examined. Soybeans were planted in large experimental plots (0.45 ha); three plots contained corridors of successional old-field vegetation, three plots contained corridors planted in grasses, and three plots were left undivided. Treatments were arranged in a completely random design. No significant differences in larval parasitism were observed between treatments, and location (larvae collected near corridors, less than or equal to 5 m, compared with larvae collected farther from corridors, 6-11 m) did not have a significant effect on parasitism of P. scabra larvae. Parasitism of P. scabra larvae by the total parasitoid complex, by Aleiodes nolophanae (Ashmead), and by Campylochaeta plathypenae (Sabrosky) generally increased in all treatments as the season progressed, but parasitism by C. plathypenae declined later in the season. Larval parasitism by Cotesia marginiventris (Cresson) declined over time. Larval parasitism may have been related to spatial scale. |
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