ENTOMOPATHOGENIC FUNGI SCREENING AGAINST FRUIT FLY IN THAILAND

Main Article Content

Sirinun Aemprapa*

Abstract

The screening of entomopathogenic fungi, 7 isolates of Metarhizium spp., 12 isolates of Beauveria spp., and 1 isolate of Hirsutella citriformis  against fruit fly was performed in Lampang Agricultural Research and Training Centre, Lampang, Thailand. The efficacy test was done by spraying suspension of 108 spores per ml of fungus on Bactrocera dorsalis in completely randomized design experiments. The numbers of the dead fruit flies which were covered by fungus was recorded and percent  mortality was calculated by Abbott’s formula. The results showed that the percentage of fruit fly mortality was from 2 to 68%. Beauveria sp. isolate 6241 which killed 50% of fruit flies was selected and virulent level was checked by calculating the LC50  using completely randomized design experiments. The results showed that the numbers of the fruit flies killed by fungi were correlated with the spore concentration. Its LC50 was 7.36x107spores/ml respectively.  


Keywords: fruit fly, entompathogenic fungi, biological control


Corresponding author: E-mail: entolpth@yahoo.com

Article Details

Section
Original Research Articles
Author Biography

Sirinun Aemprapa*, Rajamangala University of Science and Technology Thanyaburi, Pathumtani, Thailand

Rajamangala University of Science and Technology Thanyaburi
Rangsit-Nakornnayok Road, Klong 6, Thanyaburi, Pathumtani 12110.Thailand 

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