Vol.12_No.2 - Pesticide Alternatives Lab - Michigan State University

More documents

Recommendations

Info

Spring 2003 Resistant Pest Management Newsletter Vol. 12, No.2of cross-resistance with pyrethroids(Martin et al., 2002). It is the same for theprofenofos that did not show any resistancein H. armigera field populations (Fig. 6).This organophosphorus compound wasused since 1977 in mixtures withpyrethroids to control the mites. It wasused alone for 2000 as pyrethroidsalternative. No cross-resistance wasdetected with pyrethroids (Martin et al.,2002).these populations has been surveyed in each year since1985 (Fig. 4). Three plateaux appeared showingschematically the apparition of pyrethroid resistance inH. armigera populations from Bouaké: susceptibility(1985-1988), decrease of susceptibility (1989-1995)and resistance (1996-2001).Concerning the survey of pyrethroid alternatives,dose-mortality regression lines for endosulfan andprofenofos have been done annually since 1999 inBouaké populations. Endosulfan LD50s of fieldpopulations were at the same level than BK77 (Fig. 5).Thus endosulfan did not show any resistance in H.armigera cotton field populations. This cyclodiene isused from the 1970's in mixtures with DDT andmethyl-parathion. It was replaced by pyrethroids in1984. But from the development of pyrethroidresistance, endosulfan was reused alone with success(Ochou and Martin, 2002). From this result, it appearsthat this success partially originates from the absenceDISCUSSION Results obtained on larvaewith the application of discriminatingdoses by vial test method confirmed thepresence of resistant H. armigera in all thefield populations collected in Côte d'Ivoire.The larva vial test was not an accuratemethod. However, results obtained directlyin the field were indicators of thepyrethroid resistance and could beconfirmed with the bioassay method.Bioassays results showed that thedeltamethrin resistance level in H.armigera populations could be consideredas low in Côte d'Ivoire (in average RF
Spring 2003 Resistant Pest Management Newsletter Vol. 12, No.2ACKNOWLEDGEMENTS The authors thankthe research and development unit team ofcotton companies (CIDT, IC, and LCCI)and the technical assistance of T. Konate,I. Ouattara, and M.J. Mousso of theentomological laboratory of the CNRA(Centre National de RechercheAgronomique).REFERENCESCouilloud, R. and Giret, M. (1980). Multiplicationd'Helicoverpa armigera Hübner: améliorationspossibles grâce à l'adoption d'une techniqued'élevage en groupe de chenilles. Coton et FibresTropicales, 35: 217-224.Finney, D. J. (1971). Probit analysis. 3rd Edition,Cambridge University Press pp.333.Forrester, N.W., Cahill, M., Bird, L. J. and Layland, J. K.1993 Management of pyrethroid and endosulfanresistance in Helicoverpa armigera (Lepidoptera:Noctuidae) in Australia. In Bull. Entomol. Res.Supplement Series N°1. International Institute ofEntomology pp. 1-132.Gunning, R. V. and Easton, C. S. (1993) Resistance toorganophosphate insecticides in Helicoverpaarmigera (Hübner) (Lepidoptera: Noctuidae) inAustralia. Gen. Appl. Entomol., 25: 27-34.McCaffery, A. R., Maruf, G. M., Walker, A. J. andStyles, K. (1988). Resistance to pyrethroids inHeliothis spp.: Bioassay methods and incidence inpopulations from India and Asia. Brighton CropProtection Conference - pests and diseases -, 433-438.McCaffery, A. R., King, A. B. S., Walker, A. J. and El-Nayir, H. (1989). Resistance to syntheticpyrethroids in the bollworm Heliothis armigerafrom Andhra Pradesh, India. Pesticide Science, 27:65-76.McCaffery, A. R. (1998). Resistance to insecticides inheliothine Lepidoptera. Phil. Trans. R. Soc. Lond. B pp. 1735-1750.Martin, T., Ochou, O. G, Hala N'Klo, F, Vassal and J. M., Vaissayre, M.(2000). Pyrethroid resistance in the cotton bollworm, Helicoverpaarmigera (Hübner), in West Africa. Pest Management Science, 56:549-554.Martin, T., Chandre, F., Ochou, O. G., Vaissayre, M. and Fournier, D.(2002). Pyrethroid resistance mechanisms in the cotton bollwormHelicoverpa armigera (Lepidoptera: Noctuidae) from West Africa.Pesticide Biochemical Physiology, 74 : 17-26.Martin, T., Ochou, O. G., Vaissayre, M. and Fournier D. (2002). Positiveand Negative Cross-resistance to Pyrethroids in Helicoverpaarmigera from West Africa. Resistance Pest ManagementNewsletter, 12, 1.Nibouche, S. (1994). Cycle évolutif de Helicoverpa armigera (Hübner)dans l'ouest du Burkina Faso. Thèse de Doctorat, 15/12/1994. EcoleNationale Supérieure Agronomique, Montpellier, France. pp.143.Ochou, O. G., Martin, T. and Hala N'Klo, F. (1998). Cotton insect pestproblems and management strategies in Côte d'Ivoire, W. Africa.Proceedings of the World Proceedings of the World CottonResearch Conference-2. Athens, Greece, September 6-12, pp. 833-838.Ochou, G. O. and Martin, T. (2002). Pyrethroïd Resistance inHelicoverpa armigera (Hübner): Recent Developments andProspects for its Management in Côte d'Ivoire, West Africa.Resistance Pest Management Newsletter, 12, 1.Vaissayre, M., Vassal, J. M. and Martin, T. (1998). Pyrethroid resistancein the bollworm Helicoverpa armigera (Hubner) (Lepidoptera:Noctuidae) in West Africa. Proceedings of the World CottonResearch Conference-2. Athens, Greece, September 6-12, pp. 701-705.Vaissayre, M., Vassal, J. M., Staetz, C. and Irving, S. (2002). A Vial TestMethod for the Survey of Pyrethroid Resistance in Helicoverpaarmigera in West Africa. Resistance Pest Management Newsletter,12, 1.Vassal, J. M., Vaissayre, M. and Martin, T. (1997). Decrease in thesusceptibility of Helicoverpa armigera (Hübner) (Lepidoptera:Noctuidae) to pyrethroid insecticides in Côte d'Ivoire. ResistancePest Management 9, 2, 14-15.T. MartinCNRA, Programme cotonBP 633, BouakéCôte d'Ivoire&CIRAD-CA, Programme coton, TA72/0934398, Montpellier cedex 5FranceG. O. OchouCNRA, Programme cotonBP 633, BouakéCôte d'IvoireM. VaissayreCIRAD-CA, Programme coton, TA72/0934398, Montpellier cedex 5FranceD.FournierIPBS-UMR 5089205 Route de NarbonneF-31077 ToulouseFrance55
Page 1:
Resistant Pest Management Newslette
Page 4 and 5: Spring 2003 Resistant Pest Manageme
Page 35 and 36: Tetranychus urticae Koch. At 24 hrs
Page 53: Spring 2003 Resistant Pest Manageme
Page 77: Spring 2003 Resistant Pest Manageme
Page 80 and 81: In contrast to spinosad, indoxacarb
Page 82 and 83: Resistance Management NewsInsect Mo
Page 84 and 85: SymposiaCAST Pesticide Resistance M
show all

Vol.12_No.2 - Pesticide Alternatives Lab - Michigan State University

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?