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http://dx.doi.org/10.7585/kjps.2013.17.4.359

Earthworm Risk Assessment of Picoxystrobin Considering Rainfall after Spraying  

Hong, Soonsung (National Agro-Food Safety Department, Academy of Agricultural Science)
You, Are-Sun (National Agro-Food Safety Department, Academy of Agricultural Science)
Jeong, Mihye (National Agro-Food Safety Department, Academy of Agricultural Science)
Lee, Jae Bong (National Agro-Food Safety Department, Academy of Agricultural Science)
Ihm, Yangbin (National Agro-Food Safety Department, Academy of Agricultural Science)
Publication Information
The Korean Journal of Pesticide Science / v.17, no.4, 2013 , pp. 359-362 More about this Journal
Abstract
This study was performed in order to assess the risk of earthworm when the picoxystrobin was sprayed in Korean orchard. The acute toxicity ($LC_{50}$) of picoxystrobin active ingredient(99.3%) and soluble concentrate (25%) against earthworm was showed 10.93 mg/kg and 8-16 mg/kg respectively. This earth worm toxicity value means that the picoxystrobin do not show the earthworm risk in present Korean risk assessment system. However, in the test which was simulated the rainfall after spraying, all the earthworm were died in 24 hours. This result indicated that the risk assessment for the earthworm should be considered the weather condition.
Keywords
pesticide; earthworm; toxicity; risk assessment;
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