The Occurrence of Non-target Pests in Bt Cotton Fields in Hebei,Shandong and Henan Provinces |
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| Authors: | LYU Li-Min ZHANG Shuai LUO Jun-Yu WANG Chun-Yi WU Dong-Mei LI Chun-Hua CUI Jin-Jie |
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| Institution: | State Key Laboratory of Cotton Biology / Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, China |
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| Abstract: | The occurrence and damage caused by whiteflies, cotton aphids, cotton thrips, mirid bugs, and cotton spider mites in the Bt cotton field, including 18 monitoring sites distributed in Hebei, Shandong, and Henan Provinces, were investigated from 2011 to 2012. In order of incidence of plants with pests, it showed that: whitefly (99.17%) > cotton aphids (98.33%) > cotton thrips (74.58%) > mirid bugs (43.10%) > cotton spider mites (20.95%). Compared with other pests, whiteflies had a highest incidence in the flower and boll stage of Bt cotton in Henan Province, and mirid bugs and cotton spider mites mainly occurred in the flower and boll stage in Hebei Province. Conversely, cotton aphids and cotton thrips showed the highest incidence at the bud stage in Hebei and Shandong Provinces, respectively. The results indicated that non-target pests showed significantly different occurrence and damage rates in various developmental stages of Bt cotton in different regions. |
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| Keywords: | Bt cotton non-target pests occurrence |
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