E3S Web Conf.
Volume 131, 20192nd International Conference on Biofilms (ChinaBiofilms 2019)
|Number of page(s)||5|
|Published online||19 November 2019|
Screening of insecticides against the mulberry fruit gall midge Cotarina sp.
The Chongqing Three Gorges Academy of Agricultural Sciences, 404155 Wanzhou Chongqing, China
2 Plant Protection Station of Wanzhou, 404199 Wanzhou Chongqing, China
* Corresponding author: firstname.lastname@example.org
In recent years, a kind of mulberry pests which were known as the mulberry gall midge Cotarina sp. in different mulberry planting areas occurred popularly in China. This study aims to screening high efficacy and low toxicity insecticides for controlling Cotarina sp.. The current study can help understand integrated pest management (IPM) of Cotarina sp. by scientific and reasonable insecticide use. Field experiment was carried out to investigate eight insecticides, treated with 3 concentration gradients. The result shows that Imidacloprid, Thiamethoxam, Cyromazine, Bifenthrin and Cypermethrin·Profenofos had high control effect on the mulberry gall midge.Their pesticide residues were all less than Chinese Standard GB2763-2016, which means that they were feasible to control this pest. This paper shows that, to control Cotarina sp. in fruit mulberry production, 10% Imidacloprid WP with 2000~3000 dilution and 25% Thiamethoxam WDG with 1500~2500 dilution and 80% Cyromazine WDG with 1500~2000 dilution are the best. 2.5% Bifenthrin EW with 1000~1500 dilution and 440g/l Cypermethrin·Profenofos EC with 1000~2000 dilution should be used by selection. However, Bifenthrin or Cypermethrin·Profenofos cannot be used in mulberry field for both fruits and leaves, so as to avoid causing silkworm poisoning.
© The Authors, published by EDP Sciences, 2019
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