scholarly journals Effects of Ultraviolet (254nm) Irradiation on Egg Hatching and Adult Emergence of the Flour Beetles,Tribolium castaneum,T. confusumand the Almond Moth,Cadra cautella

2007 ◽  
Vol 7 (36) ◽  
pp. 1-6 ◽  
Author(s):  
S. I. Faruki ◽  
D. R. Das ◽  
A. R. Khan ◽  
M. Khatun
1994 ◽  
Vol 21 (1) ◽  
pp. 44-48 ◽  
Author(s):  
Frank H. Arthur

Abstract Inshell peanuts were treated with 0.5, 1.0, 2.0, and 4.0 ppm cyfluthrin, each rate of cyfluthrin + 8.0 ppm piperonyl butoxide, and each rate of cyfluthrin + piperonyl butoxide + 25 ppm chlorpyrifos-methyl. After 10 months red flour beetle, Tribolium castaneum (Herbst), populations in peanuts treated with 0.5 and 1.0 ppm cyfluthrin averaged 89.5 and 34.2 adults per 12.7 kg peanuts; populations in peanuts treated with 1.0 and 1.5 ppm cyfluthrin + piperonyl butoxide averaged 72.0 amd 41.5 adults per 12.7 kg peanuts. Populations in the remaining 8 treatments ranged from 0.5 to 7.2 adults. Indianmeal moth, Plodia interpunctella (Hübner), and almond moth, Cadra cautella (Walker), populations remained low in all treatments. At 10 months the percentage of insectdamaged kernels from cracked pods ranged from 8.7 to 28.8% in the cyfluthrin and cyfluthrin + piperonyl butoxide treatments, while the percentage of damaged kernels was 4.4 to 6.1% in the 4 treatments with chlorpyrifos-methyl.


1995 ◽  
Vol 30 (3) ◽  
pp. 318-323 ◽  
Author(s):  
Frank H. Arthur

Inshell peanuts treated with 10, 14, 18, and 22 ppm cyfluthrin were bioassayed with fifth instar Indianmeal moths, Plodia interpunctella (Hübner) and fifth-instar almond moths, Cadra cautella (Walker), after 0, 2, 4, 6, and 8 months of storage. Emergence of the adult almond moth was greater than Indianmeal moth emergence at residual bioassays of 14, 18, and 22 ppm. Regression of increasing emergence with storage time was significant for the Indianmeal moth at 22 ppm and the almond moth at 14 and 22 ppm. For both species, adult emergence decreased as cyfluthrin concentration increased and was described by quadratic regression.


1986 ◽  
Vol 21 (3) ◽  
pp. 271-275 ◽  
Author(s):  
J. W. Press ◽  
L. D. Cline ◽  
B. R. Flaherty

The effectiveness of two parasitic wasps, Bracon hebetor Say and Venturia canescens (Gravenhorst), in suppressing populations of the almond moth, Cadra cautella (Walker) was tested separately in 44.7 m3 rooms in the presence of large numbers of the red flour beetle, Tribolium castaneum (Herbst). Numbers of B. hebetor were decreased while numbers of the almond moth increased in the presence of T. castaneum. Populations of Venturia canescens were unaffected by T. castaneum.


1977 ◽  
Vol 4 (1) ◽  
pp. 27-31 ◽  
Author(s):  
L. M. Redlinger ◽  
R. A. Simonaitis

Abstract Farmers stock peanuts were treated with pirimiphosmethyl (0- [2- (diethvlamino)-6-methyl-4-pyrimidinyl 0,0-dimethyl phosphorothioate) applied at rates of 10, 20, and 30 ppm as a protectant against stored-product insects and stored in metal bins (4.5 metric tons) for 1 year. Similar peanuts were treated with malathion (diethyl mercaptosuccinate S-ester with 0,0-dimethyl phosphorodithioate) applied at a rate of 52.1 ppm as a standard for comparison. Although residues of pirimiphos-methyl decreased ca. 63% during the year (half of the decrease during the first 4 months), rates of 20 and 30 ppm gave excellent protection for 1 year, and a rate of 10 ppm gave protection for about 6 months. Malathion was relatively ineffective, either because it degraded so rapidly the first 2 months or because malathion-resistant strains of insects were present. Of the 16 species of stored-product insects found in the peanuts, red flour beetles, Tribolium castaneum (Herbst), and almond moths, Cadra cautella (Walker), were the predominant species.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abhay Punia ◽  
Nalini Singh Chauhan ◽  
Drishtant Singh ◽  
Anup Kumar Kesavan ◽  
Sanehdeep Kaur ◽  
...  

AbstractThe antibiosis effect of gallic acid on Spodoptera litura F. (Lepidoptera: Noctuidae) and its parasitoid evaluated by feeding six days old larvae on artificial diet incorporated with different concentrations (5 ppm, 25 ppm, 125 ppm, 625 ppm, 3125 ppm) of the phenolic compound revealed higher concentration (LC50) of gallic acid had a negative impact on the survival and physiology of S. litura and its parasitoid Bracon hebetor (Say) (Hymenoptera:Braconidae). The mortality of S. litura larvae was increased whereas adult emergence declined with increasing concentration of gallic acid. The developmental period was delayed significantly and all the nutritional indices were reduced significantly with increase in concentration. Higher concentration (LC50) of gallic acid adversely affected egg hatching, larval mortality, adult emergence and total development period of B. hebetor. At lower concentration (LC30) the effect on B. hebetor adults and larvae was non-significant with respect to control. Gene expression for the enzymes viz., Superoxide dismutase, Glutathione peroxidase, Peroxidase, Esterases and Glutathione S transferases increased while the total hemocyte count of S. litura larvae decreased with treatment. Our findings suggest that gallic acid even at lower concentration (LC30) can impair the growth of S. litura larvae without causing any significant harm to its parasitoid B. hebetor and has immense potential to be used as biopesticides.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Christos G. Athanassiou ◽  
Nickolas G. Kavallieratos ◽  
Frank H. Arthur ◽  
Christos T. Nakas

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.


Sign in / Sign up

Export Citation Format

Share Document