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Workshop on modern biology & its social impacts 2-5 Dec 2007, Xishuanbanna, Yunnan, China

Workshop on modern biology & its social impacts 2-5 Dec 2007, Xishuanbanna, Yunnan, China Environmental Impacts of GM Crops for Insect-Resistance Yufa Peng Biosafety Research Centre, CAAS, Beijing yfpeng@ippcaas.cn. MOA Inspection and Test Center for Environmental Safety of Transgenic Crops.

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Workshop on modern biology & its social impacts 2-5 Dec 2007, Xishuanbanna, Yunnan, China

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  1. Workshop on modern biology & its social impacts 2-5 Dec 2007, Xishuanbanna, Yunnan, China Environmental Impacts of GM Crops for Insect-ResistanceYufa Peng Biosafety Research Centre, CAAS, Beijing yfpeng@ippcaas.cn

  2. MOA Inspection and Test Center for Environmental Safety of Transgenic Crops Lab testing Environmental testing

  3. The major crops under field testing Cotton Corn Soybean Potato Rice

  4. Environmental Impacts of Bt Cotton Experimental Stations for Environmental safety of Bt cotton 4 1 Langfang 2 3 1-Langfang,Hebei（1997-） 2-An Yang, Henan（1997-） 3-Tianmen, Hubei（2001-） 4- Kashi, Xinjiang（2001-）

  5. Population dynamics of non-target pests and natural enemies in Bt cotton field Number of predators increased due to reduced pesticide uses in Bt cotton field The damage of aphid reduced due to higher population of natural enemies Mirids become the major pests in Bt cotton

  6. Impact of Bt Cotton Pollen On Silkworms Bombyx mori Antheraea pernyi No significant difference was observed on mortality of silkworm at the density of 100 pollen grains/cm2 in Bt cotton field or Chinese tussah silkworm at the density of1000 pollen grains/cm2 in Bt corn field compared to non-Bt controls

  7. Effects on Arthropod Biodiversity of Bt Cotton A higher diversity in species and a better structure of arthropod community in Bt cotton field

  8. Monitoring the Bt toxin residue in soil of Bt cotton field The contents of Cry1Ac toxin in soil in Langfang,Hebei, Jiangsu, Henan, Shandong were less than ELISA test limit

  9. Functions of cotton bollworm refuges with different planting models Corn Soybean Wheat Soybean/Peanut Corn Soybean/Peanut Peanut Cotton Cotton Cotton Different planting models 1st 2nd 3rd fourth generation larvae

  10. Resistance evaluation of Bt cotton lines to cotton bollworm

  11. Environmental testing of GM soybean • The survival and competitive ability • The ecological consequence of gene flow • Effects on non-target organisms and biodiversity

  12. GM soybean • Testing the survival and competitive abilities • survival: less • weediness: without advantage

  13. Local soybean variety GM soybean Experimental layout of gene flow GM soybean • Testing the ecological risk of gene flow Gene flow frequency 0.0316％～0.6％ maximum flow distance: 20m Local soybean variety GM soybean

  14. GM soybean • Testing the ecological risk of gene flow • GM to wild soybean: 0.15%-1.3% • GM to conventional cultivars • to yellow soybeans 0.058%-1.63% • to black soybeans0.051%-0.16％

  15. GM soybean • effects on biodiversity • Direct observations • Vacuum-suction machine

  16. GM soybean • effects on biodiversity • effect on Arthropods of soybean no significant differences Been blister beetle Aphids Dotted bug Greenish hawk moth

  17. GM soybean • Testing the effects on biodiversity • effects on nature enemy of soybean pests spider ladybird

  18. GM soybean • effects on biodiversity • effects on nature enemies of soybean diseases no significant differences Downy mildew

  19. Environmental impact testing of transgenic Corn MON810 , MON863resistant to insects GA21, NK603tolerant to herbicide MONSANTO Bt 11, 176resistant to insects SYNGENTA TC1705resistant to insects DAS-59122-7resistant to insectsand tolerant to herbicide Du PONT BAYER T25tolerant to herbicide

  20. transgenic corn • survival and competitive abilities • survival: less • weediness: without advantage

  21. transgenic corn • ecological risk of gene flow • 5m: 0.93% to 19.57% 15m: 0.88% to 6.67% 30m: 0.32% to 1.76% 60m: 0.23% to 1% GM corn

  22. transgenic corn • the effects on biodiversity Visual Observation Vaccum-sucking machine Pitfall trap Dissecting the stem

  23. transgenic corn good control on Asian corn borer Bt corn Damaged by peach borer Non-Bt corn damaged by Asian corn borer, Ostrinia furnacalis Non-Bt corn Bt corn

  24. transgenic corn • effects on non-target insects of Bt corn no significant differences Corn leaf aphid Thrips

  25. transgenic corn • effects on natural enemies of corn pests no significant difference Propylaea japonica Lacewing Harmonia axyridis

  26. transgenic corn • effects on corn diseases Corn northern leaf blight Curvularia leaf spot grey leaf spot Common smut

  27. Concluding remarks Cotton bollworm and Bt cotton cultivation Genetic stability for 10 years Not an invasive weed Bt-proteins in cotton cultivars does not appear to alter the fitness to survive in natural habitats Effects on non-target insects and biodiversity Insect resistance and IPM strategy

  28. For regulation, have to know vs. nice to knowFor research, understanding & cooperation Thank you !

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