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Residual properties of ethoprophos with treatment methods in sweet pepper under greenhouse condition  

Kim, Jin-Bae (National Institute of Agricultural Science and Technology)
Song, Byung-Hun (National Institute of Agricultural Science and Technology)
Lee, Soo-Hyung (National Institute of Agricultural Science and Technology)
Nam, Hong-Shik (National Institute of Agricultural Science and Technology)
Son, Kyung-Ae (Gyeongsangnam-do Agricultural Research & Extension)
Publication Information
The Korean Journal of Pesticide Science / v.8, no.2, 2004 , pp. 112-116 More about this Journal
Abstract
Two experiments were carried out in greenhouse under hydrophilic culture facilities and simulation model to provide residual characteristics of ethoprophos treated in sweet pepper's growth. To identify the pattern of absorption-translocation through the plant roots, ethoph 5 % GR were diluted in hydrophilic culture solution and drenched at a time per day for three days. The residue in fruit came closed to 0.02 ppm of MRL at 10 days after treatment(DAT) and reached peaked 0.06 ppm at 30 DAT and remained excess MRL level until around 40 DAT. To confirm the pattern of contamination by volatilization of ethoprophos, ethoph 5%GR was scattered 2 g per cubic meter. At 72 hours after treatment, the residue in sweet pepper fruit was exceed the MRL and the maximum residual amount were 0.62 ppm by volatilization. Consequently the use of ethoprophos during the growth of sweet pepper would be strong possibility to exceed the MRL.
Keywords
Sweet pepper; ethoprophos; residue; translocation; volatilization;
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