BIO Web Conf.
Volume 60, 20232022 4th International Conference on Biotechnology and Food Science (BFS 2022)
|Number of page(s)||5|
|Section||Agricultural Biotechnology and Food Safety|
|Published online||11 May 2023|
Screening of Effective Insecticides Against Diaghania Pyloalis in Mulberry Fields
1 The Chongqing Three Gorges Academy of Agricultural Sciences, Wanzhou Chongqing 404155, China
2 Chongqing Three Gorges University, Wanzhou, Chongqing, 404020, China
3 Plant Protection and Fruit Tree Technology Extension Station of Wanzhou District in Chongqing, Wanzhou Chongqing 404199, China
* Corresponding author: Ren Jiequn, senior agronomist, tel: 023-58803885, e-mail: email@example.com
In recent years, with the rapid development of the sericulture industry, the pests of mulberry trees are also increasing. Diaghania pyloalis Walker is one of the main pests of mulberry trees, has strong fecundity and very large food intake, especially in Sichuan and Chongqing areas. In order to find out the insecticides which can effectively control D. pyloalis, the screening test of high-efficiency control efficacy was carried out. In the summer of 2020, the 3rd instar larvae of D. pyloalis were selected as the test objects, and the indoor bioassay of 10 insecticides on D. pyloalis was carried out, and the results of the indoor bioassay were tested by field experiments in the autumn. The results show that 2000 times liquid of Dursban, Spinetoram, Chlorantraniliprole, and 1000 times liquid of Dichlorvos and Phoxim had the best control effect on D. pyloalis. Secondly, 2000 times liquid of Imidacloprid and Chlorfenapyr had the better control effect on D. pyloalis. Finally 2000 times liquid of Pymetrozine and Cyromazine had poor control effect, and 1000 times liquid of Azadirachtin had the worst control effect on D. pyloalis. To control D. pyloalis, 2000 dilution of Dursban and Spinetoram, and 1000 times liquid of Dichlorvos can be used in sericultural production. When using Chlorantraniliprole to control D. pyloalis, the leaves of mulberry should be picked with long interval to avoid affecting the quality of cocoons, and it is not recommended to use Cyromazine, Azadirachtin to control D. pyloalis.
© The Authors, published by EDP Sciences, 2023
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