valuation of some insecticides and their combinations with mineral oil against Tuta absoluta and the side-effects on tomato plant and fruits | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 22, Issue 1, 2017, Pages 37-47 PDF (319.15 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2017.459310 | ||
| Authors | ||
| Ahmed F. El-Aswad* ; Sameh A. Elsahaty; Maher I. Aly | ||
| Pesticide Chemistry and Technology Dept., Faculty of Agriculture, Alexandria University | ||
| Abstract | ||
| Tuta absoluta can attack tomato plant at any developmental stage around the year. Thus, the modern integrated pest management recommends effective pesticides that have high efficiency and low side-effects. Therefore, the efficiency of some insecticides and their mixtures with mineral oil was evaluated against tomato leaf miner, T. absoluta under greenhouse conditions. Also, the side-effects of the insecticides on the tomato plant and fruit quality characteristics were evaluated. The results revealed that all the tested treatments decreased the T. absoluta infestation with the following descending order; imidaclopride > (emamectin benzoate + mineral oil) > (pyridalyl +mineral oil) > (abamectin + mineral oil) > (emamectin benzoate + indoxacarb) >(indoxacarb + mineral oil) > (abamectin + lufenuron) > (Bacillus thuringensis, Bt +mineral oil) > (lufenuron + mineral oil) > (diazinon + mineral oil). The inhibitory effect of treatments on the chlorophyll content was lower than that due to the damage of T. absoluta in control. According to the efficacy of insecticides on tomato leafminer and their effects on the tomato quality, the tested insecticides could be divided into four categories as follows: Excellent (imidacloprid, emamectin + mineral oil, abamectin +mineral oil), good (indoxacarb + mineral oil, emamectin + indoxacarb, abamectin + lufenuron), moderate (pyridalyl + mineral oil, B.t + mineral oil) and fail (diazinon + mineral oil, lufenuron + mineral oil). | ||
| Keywords | ||
| Leafminer; Tuta absoluta, insecticides; side-effects, chlorophyll content | ||
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