Abstract
Field experiments were conducted using the biological agentBacillus thuringiensis to control the clearwing moth,Synanthedon myopaeformis (Lep. Aegeriidae) in apple orchards at Alexandria governorate during 1995, 1996 and 1997. Three bacterial varieties ofB. thuringiensis showed significant influence on the reduction of borer infestation. Four applications with the sporic concentration 12×107 spores/ml of each ofB. th. var.kurstaki, B. th. var.alesti andB. th. var.thuringiensis induced 82.5, 51.1 and 42.1% reduction of infestation, respectively. Methods of application showed highly significant effect on infestation level. Sparying after scraping was the best method (80.0%, reduction) followed by painting after scraping (71.5%, reduction) then spraying alone (59.7%, reduction) or painting alone (43.0%, reduction). A control programme was carried out using three applications of the biomaterial, Delfin at the rate of 200 g/100 I.w. during mid-March, early June and mid-August resulted in 88.5–91.4% reduction of infestation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Campbell, R. W.;Rodgwaite, J. D., 1971: The disease of the gypsy moth. I. Major components. J. Invert. Pathol.18, 1–7.
Deseoe-Kovacs, K. V., 1987: Situation and possibilities of biological control in Italy. Schr.Reihe Bundesmin. Ernaehr., Landw. Forsten. Reihe, A (Germany, F. R.), 1987, V. 344 p., 211–225.
Kahounova, L.;Mracek, Z., 1991: Larval mortality ofSynanthedon myopaeformis (Lepidoptera, Sesiidae) in apple trees sprayed withSteinernema strainHylobius (Nematoda, Steinernematidae). Acta Ent. Bohemosl. (CSFR).88, 3–4, 205–210.
Kiraly, Z.;Klement, Z.;Solymosy, F.;Voros, J., 1970: Methods in plant pathology with special reference to breeding for disease resistance. Akademiai Kiado, Budapest.
Mortignoni, M. E.; Steinhaus, E. A., 1961: Laboratory exercises in insect microbiology and insect pathology. Burgees Publ. Comp.
Nachtigall, G.;Dickler, E., 1992: Experiences with field applications of entomoparasitic nematodes for biological control of cryptic living insects in orchards. Actaphytopath. et Entom. Hungarica.27, 1–4, 485–490.
Ozkan, A.;Ciftci, K.;Alp, I., 1984: Investigations on the population dynamics and establishment of natural enemies of apple clearwing (Synanthedon myopaeformis Borkh. Lep.: Aegeriidae) damaging apple trees in the province of Anatolia. Bitki, Koruma, Bulteni24 (4), 213–220.
Shehata, W. A.;Hanna, M. T.;Nasr, F. N.;Tadros, A. W., 1995: Microbiological control ofZeuzera pyrina L., (Lep.: Cossidae) in pear orchards. Mansoura Univ. J. of Agric. Sc.20 (5), 2545–2555.
Shehata, W. A., 1995: Studies on some ecological aspects ofSynanthedon myopaeformis, Borkh., in apple orchards. Commun. Sci. & Develop. Res.,51 (767), 1–15.
Snedecor, G. W.; Cochran, W. G., 1961: Statistical methods. Fifth edition, Ames. Iowa, U. S. A.
Sontgen, J. M.;Sengonca, C., 1988: Observations on the incidence of parasitoids of the apple clearwing moth,Synanthedon myopaeformis (Borkh.), in Nordrhein. Mitt. Dtsch. Ges. Allg. Ang. Entom.6, 1–3, 262–266.
Tadros, A. W., 1977: Biological and ecological studies on the clearwing moth,Synanthedon myopaeformis, Borkh., and its control. Mr. Sci. of Thesis, 1977, Fac. of Agric., Cairo Univ.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shehata, W.A., Nasr, F.N. & Tadros, A.W. Application of some bacterial varieties ofBacillus thuringiensis and its bioproduct Delfin onSynanthedon myopaeformis Borkh. (Lep. Aegeriidae) in apple orchards. Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 72, 129–132 (1999). https://doi.org/10.1007/BF02770710
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02770710