Bratislava 55/3: 283-287, 2000.
ISSN 0006-3088 (Biologia). ISSN 1335-6399
(Biologia. Section Cellular and Molecular Biology).
Isolation, identification and determination of insecticidal activity of
two insect-originated Bacillus spp.
Mustafa Yaman & Zihni Demirbag*
Department of Biology, Faculty of Arts and Sciences, Karadeniz Technical
University, 61080-Trabzon, Turkey; tel: 90-462-325 3200, fax: 90-462-325 3195,
August 5, 1999 / Accepted: February 16, 2000
Two species of Bacillus, B. thuringiensis and B. sphaericus were isolated from Hyphantria cunea and Pieris brassicae, respectively.
These bacteria were identified and tested as a biological control agents
against the hazelnut pests, Gypsonoma
dealbana, Euproctis chrysorrhoea,
Melolontha melolontha and Agelastica alni. B. thuringiensis and B.
sphaericus have 93 and 29% insecticidal activities on G. dealbana, 58 and 37% on E.
chrysorrhoea, 44 and 32% on M.
melolontha and 24 and 38% on A. alni respectively.
Key words: B. thuringiensis, B. sphaericus, biological
control, hazelnut pests.