he antifeeding effect of <em>Azadirachta indica </em>A. Juss. extracts on Colorado Potato Beetle [<em>Leptinotarsa decemlineata</em> Say (Col.: Chrysomelidae)]

Year 2010, Volume: 50 Issue: 4, 193 - 200, 13.12.2010

Pervin Erdoğan , Seval Toros

Abstract

Two commercially available neem insecticides, Neem Azal T/S and Neemix, were tested as antifeedant against larval and adult stages of Leptinotarsa decemlineata Say.

Azadirachta indica A. Juss preparations were used to be alternatively to chemical insecticides to control L. decemlineata. Leaf dipping method was used under laboratory conditions. This purpose, third instar 5-10 days old and about 30-35 mg weight chosen. Adult 5-10 days old were also used.

For the bioassays leaf discs were obtained from potato plants grown in a glasshouse free of any pesticides. The leaf disc used in bioassay experiments was 2.2 cm in diameter. Six different rates were used for Neem Azal T/S, 15, 25, and 50 ppm, and for Neemix, 15, 30, and 60 ppm for these bioassay experiments. The experiments were replicated ten times including the control.

The results indicated that both formulations showed strong antifeedant effect. This effect was with dose and time related. The higher the dose the less leaf area was consumed by the test insects. On the other hand the untreated (control) insects consumed all the leaf discs.

Keywords

-

Azadirachta indica A. Juss ekstraktlarının Patates böceği [Leptinotarsa decemlineata Say (Col.: Chrysomelidae)]’ne beslenme engelleyici etkisi

Abstract

Keywords

Leptinotarsa decemlineata, larva, ergin, beslenme engelleyici etki, Neem Azal T/S, Neemix

References

• Anonim 2006.Tarımsal Yapı ve Üretim, Başbakanlık DİE. Ankara
• Anonymous 2009. http://www.epa.gov. (Erişim tarihi: 20.10.2009)
• Atak U. 1973. Trakya Bölgesinde Patates böceği (Leptinotarsa decemlineata (Say)‟nin morfolojisi, bio-ekolojisi ve savaş metotları üzerinde araştırmalar. T.C Tarım Bakanlığı Zirai Mücadele ve Zirai Karantina Genel Müdürlüğü Yayınları, Teknik Bülten 6, 63 s.
• Blaney W. M., Simmonds M. S. J., Ley S.V., Anderson, J. C. and Toogood P.L. 1990. Antifeedant effects of azadirachtin and structurally related compounds on lepidopterous larvae. Entomol. Exp. Appl. 55:149-160.
• Chopra R. L. 1928. Ann. Rep. of the Entomologist to the Govt.of Punjab, Lyallpur, for the year 1925-26. Rep.Dept. Agric. Puncab. 1(pt.2):67-125.
• Erkılıç L., Yumruktepe R., Ulubilir A. and Aytaş M. 1986. T.C. Tarım ve Köyişleri Bakanlığı II. Ulusal Zirai Mücadele Simpozyumu. Ankara 156-167.
• Ferizli A.G. 1997. Azadirachta indica A.Juss ve Melia azedarach L. (Meliaceae) süzütlerinin Spodoptera littoralis Boisd(Lep:Noctuidae)‟e Bazı Etkileri Üzerinde Araştırmalar (Yayımlanmamış Doktora tezi) .
• Hiiesaar K., Metspalu L., Joüdu J. and Kuusik A. 2004. Diverse effects of Neem Azal T/S revealed by preimaiginal stages of Colorado potato betle, Leptinotarsa decemlineata Say. Proceedings of the 9th Workshop. Hohensolmos, Germany.
• Kaethner M. 1992. Fitness reduction and mortality effects of neem-based pesticides on the Colorado potato beetle Leptinotarsa decemlineata Say (Col: Chrysomelidae). J.Appl. Ent.113 (1992), 456-465.
• Schmutterer H. 1981.Some properties of components of the neem tree (Azadirachta indica ) and their use in pest control in developing countries.Med. Fac. Landbouww. Rijksuniv.Gent, 46/1,39-47.
• Schmutterer H. 1986. Fecundity reducing and sterilizing effects of neem seed kernel extracts in the Colorado potato beetle, Leptinotarsa decemlineata. Proc.3rd.Int Neem Conf. (Nairobi, 1986), 351-360.
• Schmutterer H. 1990. Properties and Potential of Natural Pesticides from the neem tree, Azadirachta indica. Annu.Rev.Entomol.1990. 35:271-97.
• Schwinger M., Ehhammer B. and Kraus N. 1983. Methodology of the Epilachna varivestis Biossay of Antifeedants demonstrated with some compounds from Azadirachta indica and Melia azedarach. 1983. Proc.2nd Int. Neem Conf., Rauischholzhausen, pp. 181-389.
• Varnagy L. 2006. Feeding inhibitors effects of several extracts of plant and animal origin on some phytophagus insect species. D. Sc. Universitiy of Veszprem Georgikon Faculty of Agriculture Interdiscplinary doctoral School. Head of School.
• Wardojo S. 1969. Some farctors relating to the larval growth of the Colorado potato beetle, Leptinotarsa decemlineata Say (Col.: Chrysomelidae), on articial diets. Mededelingen Landbuowhogeschool Wagenigeningen, Nederland, Mededeling No. 166,71 s.
• Zehnder G. and Warthen J.D. 1988. Feeding inhibition and mortality effect of neem-seed extract on the Colorado potato beatle (Coleoptera: Chrysomelidae). J.Econ. Entomol. 81(4):1040-1044.