The Use of the Filtrate of the Fungus Beauvaria bassiana and the Growth Regulator Match to Control of the Beetle Oryzaephillus surinamensis

Abstract

The insect saw-toothed grain beetle is one of the most important pests of insect stores in most parts of the world. This study aimed to evaluate the effectiveness of the growth regulator match and the fungus B. bassiana leachate in controlling different insect species in the laboratory. Using three concentrations of the growth regulator (0.25, 0.50 and 0.75 ml/100 ml), and the fungal filtrate (50, 75 and 100 ml), against the second, fourth, and adult larval stages of the insect. The results obtained showed that the growth regulator caused the highest mortality rate of the second larval stage of the insect (93.3%), 7 days after treatment with a concentration of 0.75 ml/100 ml. The results also showed that the fungal leachate gave the highest mortality rate of the second larval stage (70%), 7 days after treatment with a concentration of 100%. These encouraging laboratory results will be followed by in-store tests in the near future.

Keywords:

Saw-toothed grain beetle, Beauvaria bassiana, growth regulator, fungal filtrate