|
Cross Resistance And The Role Of Chemical Insecticides In The Breakdown Of
Ressistant Cotton Leaf Worm To Certain Bioagents
Mohamed El-Said El-Zemaity(1) W.M. El-Deeb(2)
Y.A. Osman(3) and A.I. Huessin(2)
(1)Faculty of Agriculture, Ain Shams University, P.O. Box 68,
Hadeyk Shoubra, 11241 Cairo, Egypt
E-mail: mselzemaity@hotmail.com
(2)Central
of Pesticides Laboratory, Agriculture Research Center, Cairo,
Egypt
(3)Faculty of Science, Mansora University, Egypt
Abstract
Resistant strains of cotton leaf worm (Spodoptera litoralis) larvae to
certain bioagents (i.e., twoBtformulations Agerin & Diple2x and
actinomycetes formulation, Spinosad) were selected under laboratory conditions.
Resistant larvae were exposed to the chemical insecticides, Dursban, Larvin and
Sumi- alfa. Data obtained indicated no cross resistance between the chemical
insecticides and the bioagents tested. The organophosphorus insecticide Dursban
showed higher activity in the relaxation of resistance to Agerin and Diple 2x
than the carbamate insecticide Larvin and the pyrethroid insecticide Sumi-alfa.
However, the pyrethroid insecticide Sumi-alfa showed higher activity in reducing
of resistance ratio of Spinosad. Results confirmed the importance of rotating
bioagents with chemical insecticides in pest control programs to manage
resistance toBt and other bioagents.
|
|
| New Publications |
|
The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
|
| New Publications |
|
The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
|
| Conferences, Fez |
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
|
| Conferences, Syria |
|
The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
|
| Conference,Yemen |
|
Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
|
| Conferences Canada |
|
The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
|
| Conferences, Egypt |
|
The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
|
| Workshop,Lebanon |
|
New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
|
| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
|
|
