Impact of chloronicotinyl insecticide, imidacloprid on egg, egg-larval and larval parasitoids under laboratory conditons
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Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India
Vivekananda Institute of Hill Agriculture, Almora-263 601, Uttarakhand, India
Corresponding author
Preetha Gnanadhas
Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India
Journal of Plant Protection Research 2010;50(4):535-540
Laboratory studies were carried out to compare the toxicity of the chloronicotinyl insecticide, imidacloprid on parasitoids. The studies took place at the Tamil Nadu Agricultural University, Coimbatore from 2006–2007. Imidacloprid was tested against three beneficial insects viz., an egg parasitoid, egg larval parasitoid and a larval parasitoid representing two families of Hymenoptera: Trichogrammatidae (Trichogramma chilonis Ishii) and Braconidae (Chelonus blackburni Cameron; Bracon hebetor Say) that attack insect pests of cotton. The toxicity of imidacloprid was evaluated by treating the parasitized eggs using an atomizer in the case of T. chilonis and glass scintillation vial residue bioassay method for the adults of C. blackburni and B. hebetor. The toxicity of imidacloprid to parasitoids was compared with another neonicotinoid, named thiamethoxam, and a standard check, methyl demeton. Imidacloprid 17.8 SL did not cause any adverse effects on the adult emergence and parasitization of T. chilonis. At the recommended dose of imidacloprid [25 g active substance (a.s.)/ha], 90.67 and 85.32 per cent adult emergence and parasitization was recorded, respectively. The recommended dose of imidacloprid caused 56 per cent mortality and was found to have moderate impact on the adults of C. blackburni. On the other hand, it was found to be toxic to the parasitoid B. hebetor, causing 70 per cent mortality at 48 hours after treatment (HAT). The data presented here will provide pest managers with specific information on the compatibility of selected insecticides with natural enemies attacking pests of cotton, Gossypium hirsutum L.
The authors have declared that no conflict of interests exist.
Abbott W.S. 1925. A Method of computing the effectiveness of an insecticide. J. Am. Msoq. Control Assoc. 7 (3): 265–267.
Alba M.C. 1990. Utilisation of Trichogramma for biological control of sugarcane borers in Philippines, in: Trichogramma and Other Egg Parasitoids. p. 161–165. In: Proc. 3rd Int. Symp., Inra. Paris, 23–27 September.
Bethke J.A., Redak R.A. 1997. Effect of imidacloprid on the silverleaf whitefly, Bemisia argentifolii Bellows and Perring (Homoptera: Aleyrodidae), and whitefly parasitism. Ann. Appl. Biol. 130 (3): 397–407.
Carvalho G.A., Reis P.R., Rocha L.C.D., Moraes J.C., Fuini L.C. Ecole C.C. 2003. Side-effects of insecticides used in tomato fields on Trichogramma pretiosum (Hymenoptera, Trichogrammatidae). Acta Sci. Agron. Maringa 25 (2): 275–279.
Gomez K.A., Gomez A.A. 1976. Statistical Procedures for Agricultural Research with Special Emphasis on Rice. Int. Rice Res. Institute, Los Banos, Philippines, 368 pp.
Gomez K.A., Gomez A.A. 1984. Statistical Procedures for Agricultural Research. Wiley, New York, 680 pp.
Gonzalez Z.J.E., Gallardo J.M., Garcia M.M. 1997. Toxicity of different pesticides on pupae of Eretmocerus mundus Mercet (Hymenoptera: Aphelinidae) parasitizing Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae). Bull. OILB/SROP Bull. 20 (4): 114–120.
Guifen Z., Hiroaki T., Kazuo H. 1997. Effects of imidacloprid and buprofezin on population multiplication of Trichogramma japonicum. Acta Phytophylacica Sin. 24 (2): 164–168.
Hassan S.A. 1989. Testing methodology and the concepts of the IOBC/WPRS Working group. p. 1–18. In: “Pesticides and Non Target Invertebrates” (P.C. Jepson, ed.). Intercept, Wimborn, Dorset, 240 pp.
Jalali S.K., Singh S.P. 1997. Susceptibility of various stages of Trichogrammatoidea armigera Nagaraja to some pesticides and effect of residues on survival and parasitizing ability. Biocontrol Sci. Tech. 3 (1): 21–27.
Kareem A.A., Jayaraj S., Thangavel P., Paul A.V.N. 1977. Studies on effects of three antifeedants on the egg hatchability of Corcyra cephalonica Stainton (Galleriidae: Lepidoptera) and parasitism by Trichogramma australicum Girault. Z. Angew. Entomol. 83 (1–4): 141–144.
King E.G., Bouse L.F., Bull D.L., Coleman R.J., Dickerson W.A., Lewis W.J., Lopez J.D., Morrison R.K., Phillips J.R. 1986. Management of Heliothis spp. in cotton by augmentative releases of Trichogramma pretiosum Ril. J. Appl. Entomol. 101 (1–5): 2–10.
Kumar K. 1998. Studies on bioefficacy and determination of residues of imidacloprid applied against sucking pests of cotton. Ph.D. thesis, Tamil Nadu Agric. Univ., Coimbatore, India, 114 pp.
Mccutchen B.F., Plapp F.W. 1988. Monitoring procedure for resistance to synthetic pyrethroids in tobacco bollworm larvae. p. 356–358. In: Proc. Beltwide Cotton Prod. Res. Conf., New Orelans. Natl. Cotton Council of America. Memphis Teen, 3–8 Januar 1988.
Nasreen A., Ashfaq M., Mustafa G. 2000. Intrinsic toxicity of some insecticides to egg parasitoid, Trichogramma chilonis (Hymenoptera: Trichogrammatidae). Bull. Inst. Trop. Agri. Kyushu Univ. 23: 41–44.
Pak G.A., van Lenteren J.C. 1988. Criteria and methods for the pre-release evaluation of different Trichogramma spp. Strains. 433–442. In: Proc. 2nd International Symposium on Trichogramma and other egg parasites. Guangzhou, China. 10–15 November 1988.
Paul A.V.N., Mohanasundaram M., Subramaniam T.R. 1976. Effect of insecticides on the survival and emergence of egg parasite, Trichogramma species. Madras Agric. J. 63 (8): 557–560.
Ravensberg W.J., Berger H.K. 1988. Biological control of the European corn borer (Ostrinia nubilalis Hbn., Pyralidae) with Trichogramma maidis Pint. and Voeg. in 1980-85, in Trichogramma and other egg parasites. p. 557–567. In: Proc. 2nd Int. Symp. Trichogramma. Guangzhou, China. 10-15 November.
Schuld M., Schmuck R. 1997. Effects of the chloronicotinyl insecticide imidacloprid on the parasitoid fauna in orchards. Mitt. Dtsch. Ges. Allg. Angew. Entomol. 11 (1/6): 265–270.
Shanmugam P.S., Balagurunathan R., Sathiah N. 2006. Safety of some newer insecticides against Trichogramma chilonis Ishii. J. Plant Protect. Environ. 3 (1): 58–63.
Singh S.P., Jalali S.K. 1994. Trichogrammatids. Technical Bulletin No. 9, Project Directorate of Biological Control, Bangalore, 93 pp.
Sithanantham S., Paul A.V.N. 1977. Toxicity of some insecticidal sprays to the parasitoid, Trichogramma australicum Girault (Hymenoptera: Trichogrammatidae). p. 218–221. In: Proc. 2nd Oriental Entomology Symposium. Madras, 23–27 March 1977.
Stanley D.W., Tunaz H. 2007. An immunological axis of biological control: microbial infections in field-caught insects. p. 436–437. In: Proc. XVI Int. Plant Protect. Congress, SECC, Glasgow UK. 15–18 October 2007.
Stinner R.E. 1977. Efficacy of inundative releases. Annu. Rev. Entomol. 22: 515–531.
Suganthy M. 2003. Bioefficacy and residues of confidence® (Imidacloprid 17.8% SL) on cotton, vegetables and mango. Ph.D. thesis. Tamil Nadu Agric. Univ., Coimbatore, India, 197 pp.
Suganyakanna S. 2006. Evaluation of Acetamiprid 20 SP against sucking pest complex in cotton. Ph.D. thesis. Tamil Nadu Agric. Univ., Coimbatore, India, 190 pp.
Upadhyay R.K., Mukerji K.G., Chamola B.P. 2001. Biocontrol Potential and Its Exploitation in Sustainable Agriculture. Vol. 2, Plenum Publishers, New York, 122 pp.
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