Evaluations of Two Metarhizium varieties against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in EgyptJournal: International Journal of Science and Research (IJSR) (Vol.3, No. 9)
Publication Date: 2014-09-05
Authors : Sabbour M. M.; Singer; S. M.;
Page : 1983-1987
Keywords : Tuta absoluta; M anisopliae var frigidum M flavoviride var minus;
The LC50 of M. anisopliae var. frigidum 156X104 and 168 X104 spores/ml under laboratory and greenhouse effect, respectively. The corresponding LC50of M. flavoviride var. minus were 169 X104 and 172 X104spores/ml. The higest yied obtained in El-Esraa (Nobaryia) 3999 49.41 and 4697 49.33 Tons/kg in El-Kassaseen (Ismailia) after M. anisopliae var. frigidum treatments the yield loss ranged between 7 and 72 % in the two regions. The infestations with Tuta absoluta significantly decreased in plots treated with M. anisopliae var. frigidum as compared to the control plots.
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