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| Occurrence Regularity of Bradysia odoriphaga in Carrot under Open Field and Greenhouse Cultivation |
| CAO Xue1，ZHANG Lihuan2，CHEN Hao1，ZHANG Ansheng1，ZHUANG Qianying1，ZHU Peiqun1，3*，ZHOU Xianhong1* |
| 1Institute of Plant Protection，Shandong Academy of Agricultural Sciences，Key Laboratory for Plant Virology of Shandong Province，Jinan 250100，Shandong，China；2Hualong Town Agricultural Integrated Service Station of Shouguang City，Shouguang 262700，Shandong，China；3Agriculture and Rural Affairs Bureau of Fei county 273400，Shandong, China |
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Abstract In order to clear and definite the occurrence regularity of Bradysia odoriphaga in carrot，this study systematically investigated the occurrence situation of larva and adult of Bradysia odoriphaga in carrot planted in open fields and greenhouse using sticky cards and root digging methods from 2018 to 2019．The results showed that the early happening state of B. odoriphaga was adult，which mainly occurred in spring and autumn when the soil temperature and relative humidity were suitable for its occurrence．Two generations occurred from April to May．Its happening in greenhouse was earlier than in open fields，and 1 generation occurred in autumn from October to November．
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Received: 17 September 2020
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