Efficacy of certain controlled release pesticides formulations against root-knot nematodes on tomato plants | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 6, Issue 1, June 1998, Pages 77-88 PDF (824.65 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.1998.461501 | ||
| Authors | ||
| M. A. Radwan* 1; Sh. M. I. Kassem1; M. M. Abu Elamayem1; Hala S. Ibrahim2 | ||
| 1Department of Pesticide Chemistry, Faculty of Agriculture (El-Shatby), University of Alexandria | ||
| 2El-Sabahia Research Station. Central Agricultural Pesticide Lab. Agric. Res. Center, Alexandria, Egypt | ||
| Abstract | ||
| Contact toxicity of aldicarb, carbofuran, carbosulfan, oxamyl, pirimiphos- ethyl and triazophos was tested against root-knot nematode, Meloidogyne incognita juveniles. Triazophos was the most toxic compound, while carbofuran was the least one. Conventional and controlled release formulations (CRF's) of the six tested insecticides/ nematicides were evaluated in controlling nematode infecting tomato plants in pot trials. In addition, their effects on tomato growth was also investigated. Concerning the nematocidal efficacy of traditional formulations, the results generally revealed that only the granulated type of aldicarb and carbofuran gave high nematicidal effect as indicated by the percent reduction of nematode juveniles in soil, whereas the percent reduction in nematode juveniles r other tested types of pesticide formulations e.g. E C, W P. and L were between low and moderate control measures. Among the CRFs formulations, the data showed that aldicarb PSBD and PS- matnces had the highest effectiveness in controlling the nematode followed by triazophos PS - matrix and oxamyl PS - matrix. On the other hand, PSCRF of carbofuran as well as PSBD-CRF of triazophos and pirimiphos-methyl have the lowest effectiveness. The tested pesticides formulations when use at 2 or 10 ppm (a.i) had no phytotoxic effect on the growth of tomato plants, as indicted by fresh weight and height of root and shoot systems. | ||
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