Abstract
Laboratory bioassay tests showed that Bacillus thuringiensis (B.t.) (Bactospeine) treatment of second instar larvae of Heliothis armigera (Hbn.) and Spodoptera litura F. increased their susceptibility to endosulfan, monocrotophos, fenvalerate and Cypermethrin. The LC50 of these insecticides to both the species of larvae were lowered when treated with B.t. Comparison of susceptibility ratios showed that the increased susceptibility to insecticides was more in H. armigera than in S. litura larvae.
Résumé
Les épreuves de bioassay au laboratoire ont montré que la sensibilité aux endosulfan, fenvalerate, monocrotophos et cypermethrine est augmenté aux larves d’Heliothis armigera et Spodoptera litura lorsque leurs larves du deuxième stade sont inoculé par le Bacillus thuringiensis (B.t.) (Bactospeine). On les a inoculé en les permettant à nourrir pour 24 h sur les feuilles de Poischiche (Cicer arietinum) et de ricin (Ricinus communis) traités par une suspension du B.t. dans l’eau distillée à 300 mg/l. Les valeurs de LC50 de ces produits phytosanitaires aux tous les deux espéces des larves ont abaissés lorsqu’ elles sont étaient inoculées avec le B.t. La comparaison des rapports de la sensibilité a montré que la sensibilité induit par le B.t. aux produits phytosanitaires a été davantage aux larves d’Heliothis armigera que de S. litura.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Abdallah S. A. (1985) Efficacy of certain synthetic pyrethroids, Bacillus thuringiensis and their combination on the Egyptian cotton leaf worm Spodoptera littoralis. Bull. Entomol. Soc. Egypt. 13, 145–155.
Abdel-Aal Y.A.I, and Soderbund D. M. (1980) Pyrethroid hydrolysing esterases in southern armyworm larvae: Tissue distribution, kinetic properties and selective inhibition. Pestic. Biochem. Physiol. 14, 282–289.
Abdel-Megeed M. I., El-Rafaei S.A., Zidan A.A. (1986) The joint action of microbial and chemical insecticide combinations on the cotton leaf worm, Spodoptera littoralis. Bull. Entomol. Soc. Egypt 14, 119–126.
Barnes W. and Ware George W. (1965) The absorption and metabolism of C14 — labelled endosulfan in housefly. J. econ. Entomol. 58, 286–291.
Bell M. R. and McLaughlin R. E. (1970) Influence of the protozoan Mattesia grandis McLaughlin on the toxicity to the boll weevil of four insecticides. J. econ. Entomol. 63, 266–269.
Bull D. L. and Whitten C. J. (1972) Factors influencing organophosphorus-insecticides resistance in tobacco budworms. J. Agric. Food Chem. 20, 561–564.
Dittrich V., Luetkemeier N. and Voss G. (1980) Organophosphorus-resistance in Spodoptera littoralis. Inheritance, larval and imaginal expression and consequences for control. J. econ. Entomol. 73, 356–362.
Dowd P. F. and Sparks T. C. (1987) Comparisons of midgut, fat body and cuticular enzymes from Pseudoplusia includens (Walker) and Heliothis virescens (F.) responsible for the hydrolysis of permethrin and fenvalerate. Pestic. Biochem. Physiol. 27, 309–317.
Finney C. J. (1962) A statistical treatment of the sigmoid response curve. In Probit Analysis 2nd ed. Cambridge Univ. Press, London.
Hosny A. H. and Abassy M. A. (1977) Correlation between lipid content, acetylcholinesterase activity and toxicity of some new insecticides to Egyptian cotton leaf worm Spodoptera littoralis. Department of Plant Protection, Faculty of Agriculture, Tant. University, Egypt.
Krieger M. S. and Wilkinson R. L. (1969) Microsomal mixed-function oxidases in insects. I. Localization and properties of an enzyme system affecting aldrin epoxidation in larvae of the southern armyworm (Prodenia eridania). Biochem. Pharmacol. 18, 1403.
Listov M. V. and Nesterov V. A. (1976) On the resistance of small flour beetles to methyl bromide. Zascht. Rast. 6, 48.
Luo S. B., Yan J.P., Chai C. J., Liang S. P., Zhang Y. M., Zhang Y. and Le G. K. (1986) Control of pink bollworm, Pectinophora gossypiella with Bacillus thuringiensis in cotton fields. Chinese J. Biol. Cont. 2, 167–169.
Rabindra R. J., Balasubramaniam M. and Jayaraj S. (1988) Farinocystis tribolii-induced susceptibility to some insecticides in Tribolium castaneum larvae. J. Invertebr. Pathol. 52, 389–392.
Riviere J. L. and Fernandez J. (1978) The metabolism of detoxication in Prodenia litura (Lepidoptera: Noctuidae) aldrin epoxidase. Ann. de Zool. Ecol. Anim. 10, 281–287.
Salama H. S. and Sharaby A. (1985) Histopathological changes in Heliothis armigera infected with Bacillus thuringiensis as detected by electron microscopy. Insect Sci. Applic. 6, 503–511.
Salama H. S. and Zaki F. N. (1983) Histopathological studies on Spodoptera littoralis as affected by Bacillus thuringiensis Berliner. Ann. Agric. Sci. Cairo 28, 301–308.
Shorey H. H. and Hale R. L. (1965) Mass rearing of the larvae of nine noctuid species on a simple artificial medium. J. econ. Entomol. 58, 522–524.
Sundarababu P. C. (1972) Studies with Bacillus thuringiensis Berliner on Spodoptera litura Fab. M.Sc. (Ag.) Thesis, Tamil Nadu Agricultural University, Coimbatore.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gailce Leo Justin, C., Rabindra, R.J. & Jayaraj, S. Increased Insecticide Susceptibility in Heliothis Armigera (HBN.) and Spodoptera Litura F. Larvae Due to Bacillus Thuringiensis Berliner Treatment. Int J Trop Insect Sci 10, 573–576 (1989). https://doi.org/10.1017/S1742758400021688
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1017/S1742758400021688
Key Words
- Bacillus thuringiensis
- insecticide susceptibility
- Heliothis armigera
- Spodoptera litura
- endosulfan
- monocrotophos
- fenvalerate
- Cypermethrin