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Measurement and Analysis of Arthropod Predation on Velvetbean Caterpillar,Anticarsia gemmatalis(Lepidoptera: Noctuidae), in Soybeans

 

作者: Robert J. O'Neil,   Jerry L. Stimac,  

 

期刊: Environmental Entomology  (OUP Available online 1988)
卷期: Volume 17, issue 5  

页码: 821-826

 

ISSN:0046-225X

 

年代: 1988

 

DOI:10.1093/ee/17.5.821

 

出版商: Oxford University Press

 

关键词: Insecta;Arachnida;predation

 

数据来源: OUP

 

摘要:

Arthropod predation on small (second instar) velvetbean caterpillar,Anticarsia gemmatalisHübner, in Florida soybeans,Glycine max(L.), by a complex of arthropod predators was measured using cage exclusion techniques. Average per capita rates of predation remained relatively constant during two seasons. Relative contributions of the species composition of predator complexes, predator number, small velvetbean caterpillar number, temperature, and soybean leaf area to predation dynamics are described. The searching universe of predators in soybeans was influenced by the dynamics of soybean leaf area. Compensation for leaf area changes by predators searching more area is suggested as an important factor influencing predation on small velvetbean caterpillar in soybeans.

 

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