Mohamed, G., Taha, E. (2017). Potency of Entomopathogenic Fungi, Trichoderma album Preuss in Controlling, Rhzopertha dominica F. (Coleoptera: Bostrichidae) under Laboratory Conditions.. Journal of Plant Protection and Pathology, 8(11), 571-576. doi: 10.21608/jppp.2017.46855
Ghada S. Mohamed; Eman Taha. "Potency of Entomopathogenic Fungi, Trichoderma album Preuss in Controlling, Rhzopertha dominica F. (Coleoptera: Bostrichidae) under Laboratory Conditions.". Journal of Plant Protection and Pathology, 8, 11, 2017, 571-576. doi: 10.21608/jppp.2017.46855
Mohamed, G., Taha, E. (2017). 'Potency of Entomopathogenic Fungi, Trichoderma album Preuss in Controlling, Rhzopertha dominica F. (Coleoptera: Bostrichidae) under Laboratory Conditions.', Journal of Plant Protection and Pathology, 8(11), pp. 571-576. doi: 10.21608/jppp.2017.46855
Mohamed, G., Taha, E. Potency of Entomopathogenic Fungi, Trichoderma album Preuss in Controlling, Rhzopertha dominica F. (Coleoptera: Bostrichidae) under Laboratory Conditions.. Journal of Plant Protection and Pathology, 2017; 8(11): 571-576. doi: 10.21608/jppp.2017.46855
Potency of Entomopathogenic Fungi, Trichoderma album Preuss in Controlling, Rhzopertha dominica F. (Coleoptera: Bostrichidae) under Laboratory Conditions.
1Plant Protection Department, Faculty of Agriculture, South Valley University, Qena, Egypt.
2Food Science and Technology Department, Faculty of Agriculture, South Valley University, Qena, Egypt.
Abstract
A laboratory strain of Trichoderma album Preuss was assessed against the first larval instar and adult stage of Rhzopertha dominica F. under laboratory conditions by dipping bioassay. Four dose rates of T. album (7 ×104, 7 ×105, 7 ×106 and 7×107 conidia /ml) were applied. The count for mortality was made after 1, 3, 5 and 7 days. The treated wheat with T. album well as untreated wheat sample were stored for 6 months after infestation with R. dominica . and the quality of the stored wheat was determined. The results showed that the first larval instar was more highly susceptible than the adult stage. The highest mortality percentages were 94% and 74% for T. album against R. dominica first larval instar and adult stages, respectively, after 7 days exposure at 7×107 conidia /ml. the LC50 value was 5.61x105 and 3.32x106 conidia /ml while the LT50 recorded at 4.02 and 6.43 days at 7 ×107 conidia /ml on R. dominica first larval instar and adult stages, respectively. Wheat properties were enhanced during storage for treated wheat comparing to untreated wheat which it reduced weight loss by 26% also gluten content and color quality of wheat were improved after treatment with . T.album. These results indicate that the entomopathogenic fungus T. album has the potential to be a biocontrol agent for controlling R. dominica and a suitable candidate further for research and development.
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