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Response of Different Insect Groups to Various Wavelengths of Light under Field Conditions

文献类型： 外文期刊

作者： Pan, Hongsheng 1 ; Liang, Gemei 1 ; Lu, Yanhui 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Plant Protect, Minist Agr & Rural Affairs, Sci Observing & Expt Stn Crop Pests Korla, Urumqi 830091, Peoples R China

关键词： pest; natural enemy; insect family; light trap; population monitoring; pest management

期刊名称：INSECTS （ 影响因子：2.22； ）

ISSN：

年卷期： 2021 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Simple Summary Laboratory experiments have found that insects in the same taxonomic group generally have similar responses to light at various wavelengths. However, there is lack of direct evidence of between-group differences in insect responses to various light wavelengths under field conditions. During 2014-2015, the relative attractiveness of LEDs with 19 single wavelengths to three pest orders and four natural predator orders was evaluated in cotton fields. The average numbers of Lepidoptera, Hemiptera, Coleoptera, and total pests captured by traps with a 395-nm LED wavelength were higher than those for all others, except 440-nm wavelength captured the largest number of Hemiptera in 2015. For natural enemies, the average numbers of Coleoptera, Neuroptera, and total natural enemies were the largest in traps with a 572-nm LED wavelength, except 538-nm wavelength captured the largest number of Coleoptera in 2014. In general, the ratio of pests to natural enemies captured in the 395-nm wavelength LED trap was significantly more than all others. These results demonstrated that insects in different taxonomic groups have significantly different responses to light at various wavelengths under field conditions; these results will provide insights for in-depth studies on insect phototaxis and guide the long-term monitoring of insects in different groups. Insects in the same taxonomic group generally have similar responses to light at various wavelengths in the laboratory. However, there is lack of direct evidence of between-group differences in insect responses to various light wavelengths under field conditions. During 2014 and 2015, we evaluated the relative attractiveness of LEDs with 19 single wavelengths to three pest orders and four natural predator orders in cotton fields. The average numbers of Lepidoptera, Hemiptera, Coleoptera, and total pests captured by traps with a 395-nm LED wavelength were higher than those for all others, except 440-nm wavelength captured the largest number of Hemiptera in 2015. For natural enemies, the average numbers of Coleoptera, Neuroptera, and total natural enemies were the largest in traps with a 572-nm LED wavelength, except 538-nm wavelength captured the largest number of Coleoptera in 2014. In general, the ratio of pests to natural enemies captured in the 395-nm wavelength LED trap was significantly more than all others. These results demonstrated that insects in different taxonomic groups have significantly different responses to light at various wavelengths under field conditions; these results will provide insights for in-depth studies on insect phototaxis and guide the long-term monitoring of insects in different groups.

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