scholarly journals Toxicity and Repellant Activity of Three Spice Materials on Tribolium castaneum (Herbst) Adults

1970 ◽  
Vol 14 ◽  
pp. 131-134 ◽  
Author(s):  
K Farhana ◽  
H Islam ◽  
EH Emran ◽  
N Islam

The chloroform extracts of coriander (Coriandrum sativum L.), ajowain (Trachyspermum ammi (L.) Link.) and fenugreek (Trigonella foenum-grecum L.) were tested against the red flour beetle, Tribolium castaneum (Hbst.) adults through residual film assay and their repellent activity were also conducted. The LD50 values for coriander, ajowain and fenugreek were 316.173 and 243.5895, 271.4573 and 232.7095, and 159.0106 and 4.194236 ?g/cm2 for 24- and 48 h of exposure respectively. According to the intensity of activity the toxicity were found in the order of fenugreek> ajowain >coriander, while the repellent activities were in the order of fenugreek> coriander> ajowain. Key words: Coriandrum sativum, Trachyspermum ammi, Trigonella foenum-grecum biological activity, Tribolium castaneum. J. bio-sci. 14: 127-130, 2006

1970 ◽  
Vol 25 ◽  
pp. 11-14 ◽  
Author(s):  
PA Banu ◽  
IA Ali ◽  
MA Salam

Gamma radiation effects on the gonads of Tribolium castaneum were assessed by cytological techniques. Pupal treatments of 15 Gy resulted in the significant reduction of testes and ovaries leading to sterility in males and infecundity in females, respectively. The present findings thus provide an important information for designing a sterile male technique for this storage pest species. Key words: Gamma radiation, Tribolium castaneum, reproductive organs Univ. j. zool. Rajshahi Univ. Vol.25 2006 p.11-14


2014 ◽  
Vol 7 ◽  
pp. 29-32
Author(s):  
M Abdullah ◽  
M Nesa ◽  
R Islam ◽  
J Banu ◽  
J Sarkar ◽  
...  

Dose-mortality and repellent activity tests of the chloroform extracts of fruit, leaf, root and stem of Solanum ferox L. against the red flour beetle Tribolium castaneum (Herbst) adults have been done. The fruit, leaf and stem extracts offered promising toxicity to the beetles within 30 min. of exposure. The LD50 values for 30 min., 12, 24, 36 and 48h of exposures were 0.440, 0.247, 0.211, 0.207 and 0.164mg cm-2 respectively for the fruit extract; 2.394, 1.712, 1.540, 1.239 and 0.993mg cm-2 respectively for the leaf extract; and 4.918, 0.871, 0.546, 0.472 and 0.522mg cm-2 respectively for the stem extract. However, the root extract did not offer any mortality for 30 min. and 12h of exposure; and thus the LD50 values for 24, 36 and 48h of exposure were 6.667, 5.086 and 3.357mg cm-2 respectively. While the dose-mortality activity can be arranged in the order of fruit> leaf> stem> root extracts. The fruit and stem extracts showed repellent activity against T. castaneum adults at P<0.01 and the leaf extract at P<0.05 level of significance, while the root extract did not show any repellency. DOI: http://dx.doi.org/10.3329/jles.v7i0.20118 J. Life Earth Sci., Vol. 7: 29-32, 2012


1970 ◽  
Vol 25 ◽  
pp. 51-55 ◽  
Author(s):  
Dipali Rani Das ◽  
Selina Parween ◽  
Saiful Islam Faruki

The efficacy of different concentrations of the commercial neem-based insecticide, Nimbicidine® was evaluated against the eggs of the red flour beetle Tribolium castaneum (Herbst). The insecticide significantly inhibited the hatching, pupation and adult emergence of the beetle. The latent effects of Nimbicidine® on the next generation progenies were expressed by significant reductions in the growth of larvae, pupation and adult emergence coupled with lengthened developmental period, but the sex ratio was unaffected. Key words: Tribolium castaneum, Azadirachtin, hatching, pupation, adult emergence, growth and development, sex ratio Univ. j. zool. Rajshahi Univ. Vol.25 2006 p.51-55


2020 ◽  
Vol 16 (4) ◽  
pp. 404-412 ◽  
Author(s):  
Ihab Alnajim ◽  
Manjree Agarwal ◽  
Tao Liu ◽  
YongLin Ren

Background: The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) is one of the world’s most serious stored grain insect pests. A method of early and rapid identification of red flour beetle in stored products is urgently required to improve control options. Specific chemical signals identified as Volatile Organic Compounds (VOCs) that are released by the beetle can serve as biomarkers. Methods: The Headspace Solid Phase Microextraction (HS-SPME) technique and the analytical conditions with GC and GCMS were optimised and validated for the determination of VOCs released from T. castaneum. Results: The 50/30 μm DVB/CAR/PDMS SPME fibre was selected for extraction of VOCs from T. castaneum. The efficiency of extraction of VOCs was significantly affected by the extraction time, temperature, insect density and type of SPME fibre. Twenty-three VOCs were extracted from insects in 4 mL flask at 35 ± 1°C for four hours of extraction and separated and identified with gas chromatography-mass spectroscopy. The major VOCs or chemical signals from T. castaneum were 1-pentadecene, p-Benzoquinone, 2-methyl- and p-Benzoquinone, 2-ethyl. Conclusion: This study showed that HS-SPME GC technology is a robust and cost-effective method for extraction and identification of the unique VOCs produced by T. castaneum. Therefore, this technology could lead to a new approach in the timely detection of T. castaneum and its subsequent treatment.


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