Thiên địch sâu hại chè
After two years studied natural enemies of insects on tea in Thai Nguyen, Bac Kan 46 species of natural enemies were found. Of which 30 species were araneae, 13 species were predators, 2 species were paras ites and one specie swere fungy. In areas where inse cticides has not been used the amount of...
Đã lưu trong:
| Tác giả chính: | |
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| Định dạng: | Bài viết |
| Ngôn ngữ: | Vietnamese |
| Được phát hành: |
Bộ Giáo dục và Đào tạo
2013
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/34040 |
| Các nhãn: |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | After two years studied natural enemies of insects on tea in Thai Nguyen, Bac Kan 46 species of natural enemies were found. Of which 30 species were araneae, 13 species were predators, 2 species were paras ites and one specie swere fungy.
In areas where inse cticides has not been used the amount of natural enemies is rich and has a clear effecton introl insect, specially with spider mites. Shadding tea non -shadding tea and different way of pruning have effects on distribution of natural enemies and insects. The use of bio - chemical has alow effect but has no effecton natural enemies. |
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