Macromolecular and enzymatic abnormalities induced by a synthetic pyrethroid, Ripcord (Cypermethrin), in adult beetles of a stored grain pest,Tribolium castaneum (Herbst.) (Coleoptera: Tenebrionidae)

1998 ◽  
Vol 39 (4) ◽  
pp. 144-154 ◽  
Author(s):  
Mushtaq A. Saleem ◽  
Abdul Rauf Shakoori ◽  
David Mantle
Keyword(s):  
Tribolium Castaneum ◽  
Synthetic Pyrethroid ◽  
Stored Grain ◽  
Stored Grain Pest ◽  
Coleoptera Tenebrionidae

scholarly journals A Laboratory Evaluation for the Potential of Entomopathogenic Fungi against Tribolium castaneum (Herbst.) (Coleoptera: Tenebrionidae)

2020 ◽  
Vol 8 (6) ◽  
pp. 1232-1235
Author(s):  
Muhammad Akmal ◽  
Shoaib Freed ◽  
Muhammad Bilal ◽  
Muhammad Naeem Malik
Keyword(s):  
Tribolium Castaneum ◽  
Insect Pest ◽  
Tween 80 ◽  
Pathogenic Fungi ◽  
Laboratory Evaluation ◽  
Stored Grain ◽  
Larval Stages ◽  
Insect Pathogenic Fungi ◽  
Mortality Percentage ◽  
Coleoptera Tenebrionidae

The red flour beetle is a very important primary insect pest of wheat worldwide. The experiments were performed to check the virulence of Beauveria bassiana and Isaria fumosorosea by insect dipping method on the adults and 2nd instar of Tribolium castaneum. Conidia were taken from 15 days old fungi and subsequently four concentrations i.e., 2×108, 3×108, 4×108 and 5×108 spores/ml of both fungi were prepared in 0.05% Tween 80 solution. Minimum 12.5% and maximum 32.5% mortality of adult insects was recorded on 7th day after the treatment at 2×108 and 5×108 spores/ml concentrations of B. bassiana, respectively while on larval stages, minimum 2.5% on 5th day and maximum 80.0% mortality was observed on 7th day post treatment of B. bassiana, respectively. On the other side, minimum 7.5 and maximum 22.5 mortality percentage was noted on 7th day post application of I. fumosorosea, respectively while on immatures minimum 5% on 6th day and highest 70% mortality was noted on 7th day post infection with 2×108 and 5×108 spores/ml of I. fumosorosea, correspondingly. This study showed the effectiveness of insect pathogenic fungi against the important stored grain insect pest and proved to be a positive management strategy.

Sign in / Sign up

Export Citation Format

Share Document