Joint action of methomyl, carbaryl, esfenvalerate and profenofos and its latent effect on the cotton leafworm, Spodoptera littoralis | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 14, Issue 2, December 2006, Pages 317-331 PDF (779.02 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2006.460756 | ||
| Authors | ||
| Eman S. Swelam* 1; Makram A. Sayed2 | ||
| 1Econ. Entomol. And Pesticides Dept., Faculty of Agric., Cairo University. | ||
| 2Plant Protection Dept., Faculty of Agric., Fayoum University. | ||
| Abstract | ||
| Four insecticides; methomyl, carbaryl, esfenvalerate and profenofos were tested against the cotton leafworm, Spodoptera littoralis to evaluate their effectiveness. Different combinations by mixing of these insecticides at the level of LC25 with the ratios of 1: 2, 1: 1 and 2: 1 were used to evaluate the joint action effects against S. littoralis. Eighteen mixtures were investigated and three of them exhibited potentiation, 10 antagonism and 5 additive effects. The latent effect appeared significant changes in the pupae weight compared with the control. Some malformations were recorded in the pupae and moths stages and some of the mixtures showed sterility effect. | ||
| Keywords | ||
| Joint action; insecticides; Spodoptera littoralis; latent effect | ||
|
Statistics Article View: 1 |
||
