ROLE OF SOME RELATIVELY NOVEL ALTERNATIVES IN INCREASING INSECT'G~DES TOXICITY AGAINST SOME SUCKING PESTS | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 4, Volume 28, Issue 11, November 2003, Page 6913-6920 PDF (1.8 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2003.246314 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| A. M. Nassef, | ||||
| Plant Protection Institute A.R.C., Egypt | ||||
| Abstract | ||||
| LaboratOl)' experiments were carried out to evaluate the bioactivity of certain traditional insecticides (i.e. profenofo$, chlorpyrifos-methyl. monocrotophos and carbosuifan) against certain sucklng pests. The tested alternativE' were also evaluated when combined in mixtures with conventional insecticides at1: 10 ratio based on the LC~'s and LC~'s value Profenofos showed the highest toxicity against adults of whiteny, B. labacl (Genn.) and two-sponed spider mite, T. urticae (Kochl) (LC~'s 52 & 8 ppm and L~ 150 & 25 respectively). wherever carbosulfan showed the highest toxicity against aphids (LC~ 75 ppm and LC~ 160 ppm). Chloropyrifos-methyl showed moderate toxicity against aphids and mites wherever monocrotofos showed the least. For the joint action pesticides/alternatives at 1: 10 • the tested mineral oil Kz. and vegetative oil (black cumin) improved the toxicity of all tested pesticides against aphids and mites. It was obvious that non of the tested altematives (i.e. mineral oil Kz. natural oil black cumin or liquid detergents) showed synergistic action to profenofos, monocrotophos. and carbosulfan against adults of Bemisia labaci (Genn.). meanwhile. chlorpyrifos-methyl mixtures with Kz oil and vegetative oil black cumin induced a high increase in toxicity 87.6% and 86.5%. also the mixtures of chlorpyrtfos-methyl with nastabon increase the toxicity with 28% and 7.96% for LC~ and L~ values, respectively. | ||||
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