Toxicity of Diatomaceous Earth to Red Flour Beetles and Confused Flour Beetles (Coleoptera: Tenebrionidae): Effects of Temperature and Relative Humidity

2000 ◽  
Vol 93 (2) ◽  
pp. 526-532 ◽  
Author(s):  
Frank H. Arthur
Keyword(s):  
Relative Humidity ◽  
Diatomaceous Earth ◽  
Flour Beetles ◽  
Effects Of Temperature ◽  
Red Flour Beetles ◽  
Coleoptera Tenebrionidae

Effectiveness of Three Residual Insecticide Formulations To Control Red Flour Beetles (Coleoptera: Tenebrionidae) On Painted and Unpainted Steel2

1991 ◽  
Vol 26 (4) ◽  
pp. 395-400 ◽  
Author(s):  
D. M. Claborn ◽  
G. E. Tetrault ◽  
F. H. Arthur
Keyword(s):  
Metal Surfaces ◽  
Insect Pests ◽  
Steel Plates ◽  
Flour Beetles ◽  
Red Flour Beetles ◽  
Coleoptera Tenebrionidae

Three insecticides were tested for efficacy against adult red flour beetles on painted and unpainted steel plates. Microencapsulated formulations of chlorpyrifos and diazinon provided 100% control for 47 weeks on both painted and unpainted surfaces. A lacquer-based formulation of chlorpyrifos was not as effective and could have been affected by paint. These findings have importance in the control of stored product insect pests on painted metal surfaces, including the decks of naval vessels.

Evaluation of Diatomaceous Earth (Insecto) and Bacillus thuringiensis Formulations for Insect Control in Stored Peanuts2

1994 ◽  
Vol 29 (2) ◽  
pp. 176-182 ◽  
Author(s):  
Frank H. Arthur ◽  
Steve L. Brown
Keyword(s):  
Bacillus Thuringiensis ◽  
Diatomaceous Earth ◽  
Insect Pests ◽  
Red Flour Beetle ◽  
Ambient Conditions ◽  
Indianmeal Moth ◽  
Flour Beetle ◽  
Flour Beetles ◽  
Almond Moth ◽  
Red Flour Beetles

Runner variety peanuts treated with four rates of diatomaceous earth (28.4, 56.8, 85.2, and 113.6 g per 12.7 kg peanuts) and Virginia variety peanuts treated with four Bacillus thuringiensis formulations (Dipel, Foil, M-Trak and Trident) were held for 8 months at ambient conditions in south Georgia and infested with stored-product insect pests. No red flour beetle, Tribolium castaneum (Herbst), adults were found in peanuts treated with diatomaceous earth until six months after treatment. After 8 months, red flour beetle populations in peanuts treated with diatomaceous earth ranged from 5.7 ± 1.9 to 32.8 ± 12.0 per kg, as compared to 221.2 red flour beetles per 12.7 kg peanuts in untreated controls. The effect of diatomaceous earth on red flour beetles was described by non-linear regression. Indianmeal moth, Plodia interpunctella (Hübner), and almond moth, Cadra cautella (Walker), populations were not abundant in untreated controls or the diatomaceous earth treatments. After 8 months, red flour beetle populations in peanuts treated with the four biological insecticides were not significantly different from the untreated controls. Low levels of Indianmeal moth and almond moth were present in all treatments.

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