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Effects of Environment Friendly Agricultural Materials to Insect Natural Enemies at Small Green Houses

소형포장에서 친환경농자재가 천적곤충에 미치는 영향

  • Published : 2008.03.30

Abstract

Many kinds of environment friendly agricultural materials (EFAMs) were used for the plant protection, furthermore they support the growth of crops in the greenhouses and the kindly environment friendly farming. Natural enemies might be used for control of insect pest with EFAMs at the same space and time. For testing the toxicity of EFAMs against to natural enemies, 10 EFAMs were selected and tested in small greenhouses and farm's fields. In case of Harmonia axyridis larva, there was no predacious activity against cotton aphids in the block with EFAMMo L, EFAMPE D, EFAMME G and EFAMAE A, otherwise, aphid population was rapidly decreased in the control block without EFAMs. Both of Trialeurodes vaporariorum and Encarsia formosa population were slightly decreased in the block with EFAMs. There were significantly decreased in the block with IEFAM C, FEFAM D, EFAMSM Band EFAMPE D compared with control area. Especially, there was significantly maintained a very low population, both T. vaporariorum and E. formosa in the block with EFAMMo C. The parasitized ratio of Aphidius colemani is also very low in the block with EFAMs compared with control area. In the block with IEFAM C, FEFAM D, EFAMPE D and EFAMMo L, there were significantly different with control area in the number of mummies. Otherwise, in case of Diglyphus isaea and Liriomyza trifolii, there was no significantly different between blocks with and without EFAMs. In the block with EFAMMo C, Tetranychus urticae and Phytoseiulus persimilis populations were significantly maintained a very low level. However, the population of T. urticae was increased, but P. persimilis was decreased in the block with EFAMMo L.

Keywords

Environment Friendly Agricultural Materials (EFAMs);Environmental Impact Assessment;Insect Natural Enemies

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  2. Evaluation of Toxicity of Several Environmental Friendly Agricultural Materials on Honeybee (Apis mellifera) and Asian Multicolored Ladybird Beetle (Harmonia axyridis) vol.49, pp.3, 2010, https://doi.org/10.5656/KSAE.2010.49.3.227
  3. Acaricidal Activity of Individual and Combined treatments of Plant Extracts against the Tea Red Spider Mite, Tetranychus kanzawai (Acari : Tetranychidae), a Pest of Tea Plant vol.26, pp.4, 2018, https://doi.org/10.11625/KJOA.2018.26.4.707