Residues of phenthoate and chlorfcnapyr in peach orchard | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 19, Issue 1, 2011, Pages 39-53 PDF (5.13 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2011.460823 | ||
| Authors | ||
| Mohamed A. Kandil* 1; M. M. Abu-Zahw2; Mohamed A. Shalaby2; E. S. Swelam1 | ||
| 1Economic Entomology and Pesticides Dept. Fac. Agric., Cairo Univ. | ||
| 2Pesticides Lab., Agric. Res. Center, Dokki, Giza, Egypt. | ||
| Abstract | ||
| The residual behavior of phenthoate and chlorfenapyr on peach was studied. In addition, the effect of some processing on the degradation of phenthoate and chlorfenapyr was also investigated. The results revealed that the rate of disappearance (loss) was faster in case of chlorfenapyr than phenthoate treatments. The half life values of phenthoate in unwashed peach fruits, leaves and soil were 2.63, 4.68 and 1.8 days, respectively, while in case of chiorfenapyr, these values were 1.0, 2.68 and 1.5 days, respectively. Rinsing treated fruits with tap water removed considerable amounts of phenthoate and chlorfenapyr. The dislodgeable amounts of the pesticide residues by washing decreased as the residues on the fruits decreased by time elapsing. Unwashed and washed fruits could be safely consumed by consumer after 21 and 14 days of phenthoate and chlorfenapyr, respectively. Processed jam from peach fruits collected one hour after spraying either with phenthoate or chlorfenapyr could be used safely directly after processing. | ||
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