The Effects of an Irradiated Wheat Diet on the Confused Flour Beetle, Granary Weevil and the Angoumois Grain Moth1

1958 ◽  
Vol 51 (5) ◽  
pp. 674-675 ◽  
Author(s):  
Ronald Hodges ◽  
Gordon Guyer
Keyword(s):  
Granary Weevil ◽  
Flour Beetle ◽  
Confused Flour Beetle

In Vitro Effect of Bean Amylase Inhibitor on Insect Amylases1

1982 ◽  
Vol 45 (7) ◽  
pp. 655-657 ◽  
Author(s):  
J. R. POWERS ◽  
J. D. CULBERTSON
Keyword(s):  
Ionic Strength ◽  
Red Flour Beetle ◽  
Sitophilus Granarius ◽  
Granary Weevil ◽  
Flour Beetle ◽  
Amylase Inhibitor ◽  
Vitro Effect ◽  
Mealworm Larvae ◽  
Confused Flour Beetle

The activity of a bean amylase inhibitor against amylases extracted from several insects was tested. Amylases extracted from Mediterranean flour moth larvae (Anagasta kuhniella), red flour beetle adults (Tribolium castaneum), both adults and larvae of Tribolium confusum (confused flour beetle) and yellow mealworm larvae (Tenebrio molitor) were inhibited while adult granary weevil (Sitophilus granarius) amylase was not inhibited by the bean inhibitor. The T. molitor amylase interaction with the bean inhibitor was studied further. Inhibition of the Tenebrio enzyme is expressed slowly at pH 5.4, but lowering the pH or raising the ionic strength of incubation media caused a marked increase in rate of expression of the inhibition.

scholarly journals Rating knockdown of flour beetles after exposure to two insecticides as an indicator of mortality

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Christos G. Athanassiou ◽  
Nickolas G. Kavallieratos ◽  
Frank H. Arthur ◽  
Christos T. Nakas
Keyword(s):  
Tribolium Castaneum ◽  
Concrete Surface ◽  
Mortality Rates ◽  
Red Flour Beetle ◽  
Flour Beetle ◽  
Insecticidal Effect ◽  
Testing Period ◽  
Flour Beetles ◽  
Confused Flour Beetle ◽  
Contact Insecticides

AbstractKnockdown and mortality of adults of the red flour beetle, Tribolium castaneum (Herbst) and the confused flour beetle, Tribolium confusum Jacquelin du Val, were assessed after exposure to two contact insecticides, chlorfenapyr and cyfluthrin, on a concrete surface. Individuals were rated on a scale for knockdown of exposed adults according to their mobility from 1, representing immobilized adults to 5, representing normally moving (similar to the controls). Only cyfluthrin gave immediate knockdown. Adults were rated at 1, 3 and 7 days post-exposure. After the final assessment, adults were discarded and the same procedure was repeated for 5 consecutive weeks with new adults exposed on the same treated surfaces. Despite initial knockdown, many individuals did not eventually die after exposure to cyfluthrin. In contrast, adults exposed to chlorfenapyr were not initially knocked down after exposure but most died after 7 days. These trends were similar during the entire 5-week residual testing period. The storage of the treated dishes in illuminated or non-illuminated conditions did not affect the insecticidal effect of either insecticide. The results of the present study can be further implemented towards the design of a “lethality index” that can serve as a quick indicator of knockdown and mortality rates caused after exposure to insecticides.

scholarly journals Wood volatiles as attractants of the confused flour beetle, Tribolium confusum (Coleoptera: Tenebrionidae)

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Masatoshi Hori ◽  
Yoshimi Aoki ◽  
Kazutaka Shinoda ◽  
Mitsuo Chiba ◽  
Rikiya Sasaki
Keyword(s):  
Tribolium Confusum ◽  
Flour Beetle ◽  
Confused Flour Beetle ◽  
Coleoptera Tenebrionidae

scholarly journals Validation of hydrogen cyanide fumigation in flourmills to control the confused flour beetle

2016 ◽  
Vol 33 (No. 2) ◽  
pp. 174-179 ◽  
Author(s):  
R. Aulicky ◽  
V. Stejskal ◽  
M. Dlouhy ◽  
J. Liskova
Keyword(s):  
Hydrogen Cyanide ◽  
Flour Beetle ◽  
Confused Flour Beetle
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