Compatibility and study effect of some insecticides and essential oils with entomopathogenic fungus, in laboratory condition

Subject Areas : entomology and othea arthropods

O. Panahi ¹ , M. Ghane Jahromi ² , A. Loni ³

1 - Gratuated student, Department of Plant Protection, Urmia University, Iran
2 - Department of Plant Protection, Faculty of Agriculture Science, Yasouj University, Yasouj, Iran
3 - Department of Biology, Payame Noor University, Tehran, Iran

Received: 2012-07-26 Accepted : 2013-06-22 Published : 2014-11-22

Keywords:

Abstract :

Pathogenic fungi are one of the factors for the insect pest control. Conidia viability of fungi, changes because of the effect of environmental factors and chemical insecticides that are used to protect plants. In this study, the effect of insecticides; imidacloprid and acetamiprid, and essential oils of the mint, Mentha spicata L. (Lamiaceae), cumin, Cuminum cyminum L. (Apiaceae) and lemon sole, Citrus aurantifolia L.(Rutaceae) on mycelial growth and conidial germination rate of Lecanicillium longisporum was studied. Concentrations of insecticides and essential oils used in the study were as 250 µl/l (0.5 MC), 500 µl/l (MC) and 1000 µl/l (2 MC), respectively. This experiment was conducted in a completely randomized design and the effect of insecticides and essential oils with four replicates at three concentrations of 27 ± 1°C on SDA medium was examined. Results showed that the effects of three essential oils and two insecticides on growth parameters of entomopathogenic fungus compared to controls was significant at p