scholarly journals Euphorbia bupleuroides Desf. latex as biopesticide against the red flour beetle (Tribolium castaneum [Herbst, 1797]) and khapra beetle (Trogoderma granarium Everts, 1898)

2021 ◽  
Vol 117 (2) ◽  
pp. 1
Author(s):  
Imene BRIK ◽  
Naama FRAH
Keyword(s):  
Ambient Temperature ◽  
Tribolium Castaneum ◽  
Insecticidal Activity ◽  
Direct Contact ◽  
The Other ◽  
Red Flour Beetle ◽  
Laboratory Evaluation ◽  
Flour Beetle ◽  
Trogoderma Granarium ◽  
Khapra Beetle

<p>Laboratory evaluation of Euphorbia bupleuroides latex as biopesticide against the red flour beetle (Tribolium castaneum) and khapra beetle (Trogoderma granarium) were evaluated at ambient temperature. The insecticidal activity of latex was determined by direct contact application. Different concentrations were prepared by dilution of 2.5, 5.0, 7.0 and 10.0 µl of latex into 0.1 ml acetone. 1 µl was pumped regularly in the thorax of different insects. The latex of E. bupleuroides showed insecticidal activity against T. granarium and T. castaneum. High levels of mortality were associated with the increase in the concentration and time of exposure as well. T. granarium adults are generally more prone to latex insecticidal effects than T. castaneum adults. After 6 days of exposure to E. bupleuroides latex, the LC50 recorded was 14.12 µl for T. granarium adults, and 14.7 µl for T. castaneum. LC90 numbers, on the other hand, were 38.8 µl for the former, and 51.44 µl for the latter.</p>

scholarly journals Insecticidal Activity of Annona squamosa l. Seed Extracts against the Red Flour Beetle, Tribolium castaneum (Herbst)

1970 ◽  
Vol 14 ◽  
pp. 107-112 ◽  
Author(s):  
M Khalequzzaman ◽  
Shajia Sultana
Keyword(s):  
Tribolium Castaneum ◽  
Insecticidal Activity ◽  
Methanol Extract ◽  
Red Flour Beetle ◽  
Regression Equations ◽  
Annona Squamosa ◽  
Flour Beetle ◽  
Custard Apple ◽  
Larval Bioassay ◽  
Seed Extracts

Insecticidal activity of the seed extracts of custard apple, Annona squamosa L. in petroleum spirit, ethyl acetate, acetone and methanol against Raj, CR 1, FSS II and CTC-12 strains of the red flour beetle, Tribolium castaneum (Herbst) was studied. The seeds were dried, powdered and extracted in Soxhlet`s apparatus in the solvents below 60°C. Extractions were applied on larvae and adult beetles in film residue methods and mortality was recorded after 24 h. For larval bioassay the highest toxicity was recorded for petroleum spirit extract (LD50= 0.03?g cm-2) in Raj strain and the lowest toxicity was for methanol extract (LD50=15.697?g cm-2) in FSS II strain. In adults petroleum spirit extract offered highest toxicity (LD50= 58.697?g cm-2) in CTC 12 strain and the lowest toxicity (LD50=22004.710?g cm-2) was for acetone extract in CR 1 strain. LD50, 95% confidence limits and regression equations are presented. Key words: Tribolium castaneum, Annona squamosa, custard apple, LD50 J. bio-sci. 14: 107-112, 2006

scholarly journals Laboratory evaluation of some indigenous plant extracts as toxicants against red flour beetle, Tribolium castaneum Herbst

1970 ◽  
Vol 7 (1) ◽  
pp. 1-5 ◽  
Author(s):  
MSA Mamun ◽  
M Shahjahan ◽  
M Ahmad
Keyword(s):  
Toxic Effect ◽  
Tribolium Castaneum ◽  
Plant Extracts ◽  
Leaf Extract ◽  
Red Flour Beetle ◽  
Laboratory Evaluation ◽  
Flour Beetle ◽  
Indigenous Plant ◽  
Neem Seed Extract ◽  
Seed Extracts

Experiments were carried out to evaluate the toxicity of six botanicals, Bazna (Zanthoxylum rhetsa), Ghora-neem (Melia sempervirens), Hijal (Barringtonia acutangula), Karanja (Pongamia pinnata), Mahogoni (Swietenia mahagoni) and Neem (Azadirachta indica) against red flour beetle, Tribolium castaneum Herbst. Leaf and seed extracts were prepared by using acetone, methanol and water as solvents. The results showed that extracts of all the six plants had direct toxic effect on red flour beetle. Among them, Neem seed extract showed the highest toxic effect (mortality, 52.50%), whereas Hijal leaf extract possessed the lowest toxic effect (mortality, 22.24%). Among the solvents, acetone extract showed more toxic effect than other extracts. Seed extracts of respective plants were slightly more toxic than leaf extract. The effectiveness of most of the plant extracts increased proportionally with the increase of doses and decreased with time. Keywords: Plant extracts; Toxicity; Red flour beetleDOI: 10.3329/jbau.v7i1.4789 J. Bangladesh Agril. Univ. 7(1): 1-5, 2009

scholarly journals Repellent Action of Diatomaceous Earth against the Adult Red Flour Beetle Tribolium castaneum (Herbst)

2012 ◽  
Vol 4 (3) ◽  
pp. 783-788
Author(s):  
A. M. S. Reza ◽  
M. M. Hossain ◽  
S. Parween
Keyword(s):  
Tribolium Castaneum ◽  
Diatomaceous Earth ◽  
The Other ◽  
Red Flour Beetle ◽  
Flour Beetle ◽  
Repellent Action

Tribolium castaneum (Herbst) adults were released to choice chambers containing untreated flour in one half and diatomaceous earth (DE)-treated flour in the other half. The doses of DE used were 2-32 mg/g. Females, males and unsexed adults were exposed separately to each dose for 24-, 48-, 72-, 96- and 120-h. DE at 32 mg/g strongly repelled (P<0.001) both sexes and unsexed beetles at all exposure periods. The males showed comparatively more avoidance to DE-treated flour at longer exposures.© 2012 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v4i3.9637 J. Sci. Res. 4 (3), 783-788 (2012)

scholarly journals Efficacy of Entomopathogenic Nematodes Against Three Species of Stored Product Insects

2021 ◽  
Vol 910 (1) ◽  
pp. 012047
Author(s):  
Fadel Qader ◽  
Burhan Mohammed ◽  
Husham Ameen
Keyword(s):  
Mortality Rate ◽  
Exposure Time ◽  
Entomopathogenic Nematodes ◽  
Exposure Period ◽  
Red Flour Beetle ◽  
Cowpea Weevil ◽  
Flour Beetle ◽  
Trogoderma Granarium ◽  
Khapra Beetle ◽  
Infectious Stage

Abstract Two specis of entomopathogenic nematodes (EPNs), Steinernema riobravi, symbolized by Sr, and Heterorabditisbacterophora, symbolized by Hb,were tested by using five concentrations: 125, 250, 500, 1000, and 2000 an infectiousphase, ml of the type Sr and four concentrations of 500, 1000, 2000 and 3000infectious phase/mlof the type Hb against Cowpea weevil, Callosobruchus maculates,Khapra beetle, Trogoderma granarium, and Rust red flour beetle Triboliumcastaneum, using three exposure times of 24, 48, and 72 h. The mortalityrate increased withincreasing in concentrations and the exposure period. The results showed that the highest mortality rate was 16.67 whole insects recorded for the 2000 infectious phase/ml with Sr nematodes after 72 hours post- treatment ofC. maculatus. The results showed that the highest rate mortality,which is 20 larvae, was recorded for the infectious phase dose of the genus nematode (Hb), all of which are 500, 1000, 2000 and 3000 gastricphase/ml, and for all exposure periods used between 24 hours and up to 72 hours against the larvae of the T. granarium. The results showed that the highest rate of mortality 10.00 whole insects was recorded for the dose of 3000 Infectious stage/ml and at the exposure time 72 hours, while the lowest rate for this mortality of 1.33 adult insects for rusty flour beetle was recorded for the dose of 500 infectious stage/ml and for the exposure time only 24 hours. The resultsindicated that mortality rate was increasing against any increase in both the exposure time and the dose of nematodes of the genus Hb.

scholarly journals Susceptibility of two maize grain flour to infestation by the rust- red flour beetle (Tribolium castaneum Herbst)

2015 ◽  
Vol 4 (5) ◽  
pp. 259-262
Author(s):  
Aliyu Umar ◽  
◽  
Umar Shirama ◽  
Joy Mbaya Turaki ◽  
◽  
...  
Keyword(s):  
Relative Humidity ◽  
Ambient Temperature ◽  
Tribolium Castaneum ◽  
Red Flour Beetle ◽  
Flour Beetle ◽  
The Mean ◽  
Maize Grain

The susceptibility of white and yellow maize grain flour to Tribolium castaneum was evaluated at ambient temperature and relative humidity in the laboratory were 33.6±0.21 0C and 35.8±0.13% RH. Different quantities of the two varieties of maize grain flour was infested with 5 adults T. castaneum in the ratio of 3:2. The result showed that at 20 days after infestation, there were significant differences in the number of T. castaneum larvae in the different quantities of the yellow maize. Moreover, the number of T. castaneum pupae in the yellow and while maize grain flour was statistically different from each other at 66 days after infestation. However, the results at 66 days after infestation showed that there were significantly differences in the mean number of T. castaneum adults emerged from the different quantities of yellow and white maize grain flour.

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