Phototactic Response of Adults of Confused Flour Beetle and Red Flour Beetle and Larvae of Black Carpet Beetle to Flashes of Blue-White Light2

1968 ◽  
Vol 61 (4) ◽  
pp. 973-975 ◽  
Author(s):  
Edwin L. Soderstrom
Keyword(s):  
Red Flour Beetle ◽  
Flour Beetle ◽  
Phototactic Response ◽  
Confused Flour Beetle ◽  
Black Carpet Beetle

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.

EVALUATION OF INSECTICIDES FOR CONTROL OF STORED-PRODUCT PESTS IN TRANSPORT VEHICLES1

1987 ◽  
Vol 22 (3) ◽  
pp. 224-236
Author(s):  
W. R. Halliday ◽  
N. O. Morgan ◽  
R. L. Kirkpatrick
Keyword(s):  
Tribolium Confusum ◽  
Flour Beetle ◽  
Stored Product Insects ◽  
Stored Product Pests ◽  
Trogoderma Glabrum ◽  
Confused Flour Beetle ◽  
Black Carpet Beetle ◽  
Cargo Containers

Thirty-three insecticides were evaluated over a 6 year period for their effectiveness against three species of stored-product insects: the confused flour beetle, Tribolium confusum Jacquelin duVal; the black carpet beetle, Attagenus unicolor (Brahm); and a warehouse beetle, Trogoderma glabrum (Herbst). The tests were conducted in transport trailer vans or sea-going cargo containers. The insecticides were formulated for application as aerosols or dusts or both. Dusts generally caused greater mortality than aerosols. Pyrethroids were more effective than other classes of insecticides tested. Cyfluthrin and S-cyano-(3-phenoxyphenyl)- methyl (1 R-cis-3-(l,2-dibromo-2,2-dichloroethyl)-2,2-dimethylcyclopropanecarboxylate were the most promising pyrethroids. The most effective organophosphate aerosol was O-(3- chloro-l-methyl-1H/-pyrazol-5-yl) O-ethyl O-methyl phosphorothioate. Generally, carbamates had very limited toxicity, as did other miscellaneous insecticides.

Quality changes occurring in stored solin, high linolenic acid and standard flaxseed (Linum usitatissimum L.)

1999 ◽  
Vol 79 (1) ◽  
pp. 35-42 ◽  
Author(s):  
N. D. G. White ◽  
J. T. Mills ◽  
E. O. Kenaschuk ◽  
B. D. Oomah ◽  
P. Dribnenki
Keyword(s):  
Linolenic Acid ◽  
Linum Usitatissimum ◽  
Red Flour Beetle ◽  
Consistent Difference ◽  
Oil Composition ◽  
Storage Quality ◽  
Flour Beetle ◽  
Linum Usitatissimum L ◽  
Aspergillus Glaucus ◽  
Confused Flour Beetle

Changes occurring in stored solin/flax cultivars over 6 mo at temperatures ranging from 10 to 35 °C and moisture contents of 8.0, 9.5, 11.0 and 12.5% were observed. The cultivars were NorLin, McGregor, FP1001 (high linolenic acid), LinolaTM 947 (solin) and LinolaTM 989 (solin). Oil composition in all cultivars changed only slightly over 6 mo with a significant increase in palmitic acid. Doubling of free fatty acid levels was considered an indicator of quality deterioration. The deterioration occurred in 6 mo at 8% MC and 20 °C in FP1001 and in NorLin, McGregor, and LinolaTM 947 at 25 °C; LinolaTM 989 could be stored at 30 °C. LinolaTM 989 could be safely stored at moderately higher temperatures at a given moisture level than LinolaTM 947. Visible mold with corresponding germination loss was usually associated with Aspergillus glaucus group infection. Stored-product insects that could survive and develop on the solin/flax were the red flour beetle, Tribolium castaneum (Herbst), the confused flour beetle, T. confusum J. du Val, the sawtoothed grain beetle, Oryzaephilus surinamensis (L.) and the merchant grain beetle, O. mercator (Fauvel).In general, LinolaTM 947 and FP1001 were slightly more difficult to store than the other cultivars but there was no consistent difference between solin and flaxseed. Key words: Flaxseed, solin, storage, quality

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