Using population energetics to evaluate potential damage to cotton by the cotton bollworm Helicoverpa armigera (Lepidoptera : Noctuidae) in North China
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概要
- 論文の詳細を見る
Energy dynamics of a natural population of the cotton bollworm, Helicoverpa armigera, was investigated using acombination of field surveys and a laboratory energy budget experiment. The ingestion and production of the population (during generations 2nd-4th) were 29.59kJ/m^2 and 2.69kJ/m^2, respectively. The assimilation efficiency ranged from 64.67 to 75.12%, and the net ecological efficiency was 9.21-16.21%. Of the fruit production of cotton plants, 0.17% was consumed nd 9.80% damaged by the bollworm population over the entire study period. Both percentages were significantly higher in the 2nd generation than those in the 3rd and 4th generations. This work provides strong evidence that H. armigera is a major pest in a cotton agroecosystem in North China, and the second generation was the key damage-causine generation.
- 日本応用動物昆虫学会の論文
- 2003-02-25
著者
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Du Li
Key Laboratory Of Integrated Management Of Pest Insects And Rodents Institute Of Zoologh Chinese Aca
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GE Feng
key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese A
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DING Yanqin
key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese A
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WU Kunjun
key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese A
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Ge Feng
Key Laboratory Of Integrated Management Of Pest Insects And Rodents Institute Of Zoology Chinese Aca
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Wu Kunjun
Key Laboratory Of Integrated Management Of Pest Insects And Rodents Institute Of Zoology Chinese Aca
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Ding Yanqin
Key Laboratory Of Integrated Management Of Pest Insects And Rodents Institute Of Zoology Chinese Aca