scholarly journals Repellency of Indigenous Plant, Bhant (Clerodendron Viscosum Vent.) Leaf on Tribolium Confusum Duval

1970 ◽  
Vol 43 (2) ◽  
pp. 267-272 ◽  
Author(s):  
MM Husain ◽  
MR Hasan
Keyword(s):  
Key Words ◽  
Wheat Flour ◽  
Tribolium Confusum ◽  
Indigenous Plant ◽  
Food Media

Repellent response of Bhant (Clerodendron viscosum Vent) to the larvae and adults of Tribolium confusum was studied. Results indicated that both the larvae and adults were repelled by contact with different food media when mixed with Bhant leaf dusts at with 100, 500, 1000 and 2000 ppm of wheat flour. Key words: Repellency, Bhant, Larvae, Adults, Food media, Leaf dustsDOI: 10.3329/bjsir.v43i2.971  Bangladesh J. Sci. Ind. Res. 43(2), 267-272, 2008

scholarly journals Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4393
Author(s):  
Cesar Auguste Badji ◽  
Jean Dorland ◽  
Lynda Kheloul ◽  
Dimitri Bréard ◽  
Pascal Richomme ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Confusum ◽  
High Dose ◽  
Synthetic Chemicals ◽  
Stored Product Pest ◽  
Indigenous Plant ◽  
Main Components ◽  
Electroantennogram Recordings ◽  
The Individual ◽  
Main Component

Essential oils of aromatic plants represent an alternative to classical pest control with synthetic chemicals. They are especially promising for the alternative control of stored product pest insects. Here, we tested behavioral and electrophysiological responses of the stored product pest Tribolium confusum, to the essential oil of a Brazilian indigenous plant, Varronia globosa, collected in the Caatinga ecosystem. We analyzed the essential oil by GC-MS, tested the effects of the entire oil and its major components on the behavior of individual beetles in a four-way olfactometer, and investigated responses to these stimuli in electroantennogram recordings (EAG). We could identify 25 constituents in the essential oil of V. globosa, with anethole, caryophyllene and spathulenole as main components. The oil and its main component anethole had repellent effects already at low doses, whereas caryophyllene had only a repellent effect at a high dose. In addition, the essential oil abolished the attractive effect of the T. confusum aggregation pheromone. EAG recordings revealed dose-dependent responses to the individual components and increasing responses to the blend and even more to the entire oil. Our study reveals the potential of anethole and the essential oil of V. globosa in the management of stored product pests.

The effects of extraction rate and flour-sieve aperture on the properties of experimentally milled soft wheat flour

1994 ◽  
Vol 74 (1) ◽  
pp. 51-58 ◽  
Author(s):  
J. E. Dexter ◽  
P. C. Williams ◽  
D. G. Martin ◽  
H. M. Cordeiro
Keyword(s):  
Particle Size ◽  
Key Words ◽  
Wheat Flour ◽  
Extraction Rate ◽  
Soft Wheat ◽  
Wheat Quality ◽  
Dough Properties ◽  
Negative Relationships

The effects of flour extraction rate and flour particle size (flour-sieve aperture) on the physical dough properties and cookie-making quality of soft wheat flour were examined during the development of a soft wheat experimental milling procedure. Soft wheats were milled to three extraction rates, and flour particle size was manipulated by changes in flour-sieve clothing. Physical dough properties, as measured by the farinograph and the alveograph, were weakly affected by milling procedure. However, cookie spread, cookie ratio and total cookie score exhibited strong negative relationships to both flour extraction rate and flour-sieve aperture. Soft wheats of different intrinsic cookie-making quality were ranked similarly by all milling procedures. Key words: Soft wheat, experimental milling, cookie-making quality, soft wheat quality screening

THE EGG-PRODUCING CAPACITY OF POPULATIONS OF TRIBOLIUM CONFUSUM DUV. AS AFFECTED BY INTENSIVE CANNIBALISTIC EGG-CONSUMPTION

1938 ◽  
Vol 16d (10) ◽  
pp. 300-306 ◽  
Author(s):  
John Stanley
Keyword(s):  
Wheat Flour ◽  
Egg Production ◽  
Wheat Germ ◽  
Tribolium Confusum ◽  
Growth Substances ◽  
Whole Wheat Flour ◽  
Egg Consumption ◽  
Whole Wheat ◽  
Large Numbers ◽  
Ground Wheat

Experiments are described in which adults of Tribolium confusum Duv. are maintained at 27 °C., and 75% relative humidity in four different flour media: (a) ordinary whole wheat flour sifted through 76-mesh bolting cloth, (b) similar flour with from 30 to 135 Tribolium eggs per gm., (c) sifted whole wheat flour plus 3% of finely ground wheat germ and (d) flour plus germ plus eggs.It is shown that when large numbers of eggs are eaten, there is a serious decline in egg production unless wheat germ in excess is also present. This is believed to be due to a scarcity of certain accessory growth substances found in wheat germ but not to the same extent in eggs. When ground wheat germ is present, the beetles seem to do somewhat better in the presence of eggs, possibly because of a better water supply, obtained from the eggs.

scholarly journals NUTRITIONAL STUDIES ON THE CONFUSED FLOUR BEETLE, TRIBOLIUM CONFUSUM DUVAL

1924 ◽  
Vol 6 (5) ◽  
pp. 565-585 ◽  
Author(s):  
Royal N. Chapman
Keyword(s):  
Wheat Flour ◽  
Rice Flour ◽  
Tribolium Confusum ◽  
Sudden Increase ◽  
Flour Beetle ◽  
Larval Stages ◽  
Mass Cultures ◽  
Living Organisms ◽  
Nutritional Studies ◽  
Confused Flour Beetle

The confused flour beetle (Tribolium confusum) was chosen for this study because it lives in a food which ordinarily contains no living organisms. The death rates are greater in cultures which are handled daily than in those which are not handled but when all are handled alike the results are comparable. The results from experiments with individual beetles in various kinds of flour were plotted with instars (larval stages) on the ordinate and time in days on the abscissa, using the results from control experiments in wheat flour to determine the length of the various instars from an "x = y" formula. The curves of development were found to be straight lines throughout all but the last instar. The curve for the last instar during which the larva transformed deviated from the straight line in certain foods, notably rice flour. When mass cultures were used the death and transformation curves were plotted for each synthetic food. A comparison of the curves from wheat flour and the synthetic foods shows that the first parts of the curves are very much alike in all cases and that a few resemble the control in every respect except that the transformation curve has been moved back for a considerable time. The death curves for the mass cultures are not smooth but show sudden increase in death at approximately the times of molting. These curves may therefore be compared with the records from individual beetles.

PEMANFAATAN DAN PROSPEK SEREALIA MINOR JALI (Coix lacryma-jobi L.) DALAM PEMBUATAN KULINER UNTUK PENGEMBANGAN USAHA INDUSTRI RUMAH TANGGA

2021 ◽  
Vol 3 (2) ◽  
pp. 6
Author(s):  
Titi Juhaeti ◽  
Ninik Setyowati ◽  
Indra Gunawan
Keyword(s):  
Key Words ◽  
Wheat Flour ◽  
Local Community ◽  
Germ Plasm ◽  
Small Scale ◽  
Grain Production ◽  
Post Harvest ◽  
A Minor

Jali (Coix lacryma–jobi L.) merupakan serealia minor yang sudah dikenal dan dikonsumsi masyarakat lokal Indonesia. Tanaman ini sudah jarang dibudidayakan petani bahkan dalam skala kecil sekalipun. Padahal tepung jali bergizi tinggi dan dapat digunakan sebagai pengganti terigu dalam pembuatan berbagai jenis kuliner. Telah dilakukan berbagai penelitian meliputi aspek budidaya, panen dan pasca panen jali untuk pembuatan aneka kuliner.  Tujuan yang ingin dicapai adalah jali menarik untuk dibudidayakan dan dimanfaatkan secara optimal untuk pengembangan usaha industri rumah tangga skala kecil dan menengah  berbasis sumberdaya lokal. Hasil penelitian menunjukkan budidaya jali dapat dilakukan di tempat terbuka maupun agak ternaungi (maksimal 50% naungan). Dalam budidayanya, pemupukan diperlukan untuk mendapatkan hasil optimal. Kuliner berupa kue kering dengan bahan dasar 100% tepung jali menunjukkan citarasa yang khas, renyah, agak padat dengan tekstur butiran-butiran lembut khas tepung jali. Apabila dicampur dengan pati taka, kue kering menjadi renyah, lebih remah, meski masih terasa sedikit butiran-butiran lembut khas jali. Kue kering dari tepung jali + tepung mocaf mempunyai cita rasa renyah, tidak terlalu remah daripada jali +taka dan masih terasa sedikit berpasir khas tepung jali dengan butiran-butiran pasir yang lebih lembut, terasa sedikit agak asam, beraroma bau khas fermentasi. Rasa kue kering jali enak dan khas.  Pengolahan jali ini diharapkan dapat diterapkan langsung di masyarakat dan dapat dikembangkan sebagai industri rumahan. Dengan pembuatan kue kering dari bahan tepung jali, pati taka dan mocaf ini, diharapkan menjadi daya tarik untuk menciptakan variasi pangan yang berkualitas, sehingga diminati masyarakat dan dapat meningkatkan penghasilan masyarakat. Kata Kunci: Jali,  budidaya, gizi, kue kering, industri rumah tangga ABSTRACTJali (Coix lacryma-jobi L.) is a minor cereal that known and consumed by local Indonesian people. The cultivation was rare even on a small scale. Meanwhile, the high nutritious jali flour can be used as a substitute for wheat flour in the producing  various types of culinary such as cookies. Many researchs have been done to find out the cultivation, harvest and post-harvest of jali in order to re-popularized jali for development of small and medium home industry based on local germ plasm resources. The results showed that jali can be cultivated both on open or on maximum 50% shading area. For cultivation, the fertilization treatment is needed to reach an optimal grain production. The cookies produced based on 100% jali flour showed a special taste, crunchy, and slightly sandyness (as a typical of jali flour). When mixtured with taka starch, the cookies become crunchy, more crumbly, with little bit sandyness. Cookies made from jali + mocaf flour have a crunchy taste, not too crumbly than jali + taka and still taste a little gritty, sandyness, a little sour, and smell of fermentation. The jali cookies is delicious with special taste. It is hoped that cookies produced based on jali, tacca and mocaf flour can be utilized by the local community to developed their home industry for special, delicious and high nutritious culinary to increase people's income. Key words: Jali,  cultivation, nutrition, cookies,  home industry.

An improved microinjection protocol for the transfer of Wolbachia pipientis between infected and uninfected strains of the flour beetle Tribolium confusum

1996 ◽  
Vol 42 (7) ◽  
pp. 711-714 ◽  
Author(s):  
Nancy W. Chang ◽  
Michael J. Wade
Keyword(s):  
Key Words ◽  
Tribolium Confusum ◽  
Adult Survival ◽  
Wolbachia Pipientis ◽  
Flour Beetle ◽  
Infected Donor ◽  
Reproductive Incompatibility ◽  
Donor Eggs ◽  
Uninfected Host

The lethality of halocarbon and other oils to hatching larvae of the flour beetle Tribolium confusum limits existing microinjection protocols, because postinjection survivorship is only 5.6% of the eggs injected. We report the development of an oil-free protocol that improves survivorship fivefold. We used this protocol to transfert the cytoplasmic endosymbiont Wolbachia pipientis from infected donor eggs to uninfected host eggs and observed reproductive incompatibility in 40% of the surviving, injected eggs. Compared with mock injected controls (35.9% survival) or microinjection of uninfected cytoplasm (32.3% survival), injection of Wolbachia-infected cytoplasm into host eggs significantly reduced egg-to-adult survival (25.1%).Key words: microinjection, Wolbachia, transfection, flour beetle, Tribolium confusum.

scholarly journals Toxicity of some Indigenous Plant Extracts against Tribolium confusum Duval

1970 ◽  
Vol 15 ◽  
pp. 133-138 ◽  
Author(s):  
I Mahfuz ◽  
LAM Khanam
Keyword(s):  
Petroleum Ether ◽  
Toxic Effect ◽  
Plant Extracts ◽  
Petroleum Ether Extract ◽  
Datura Stramonium ◽  
Tribolium Confusum ◽  
Acorus Calamus ◽  
Ether Extract ◽  
Corchorus Capsularis ◽  
Indigenous Plant

The efficacy of seven different plant extracts viz. Acorus calamus rhizome, leaves of Datura fastuosa, Datura stramonium and seeds of D. stramonium, Corchorus capsularis, Aphanamixis polystachea and Jatropha curcas on Tribolium confusum adult was studied. Dose mortality experiments were conducted with three solvent (petroleum ether, acetone and methanol) extracts separately but J. curcas seed was tested with petroleum ether extract only. Among three solvents, petroleum ether extract exhibited piquant toxic effect against the beetle at all the intervals although D. fastuosa leaf produces no mortality at 24 hours of treatment. Acetone extract of A. calamus rhizome, D. fastuosa leaf, D. stramonium seed and C. capsularis seed produced mortality at all the intervals but D. stramonium leaf and A. polystachea seed did not show any toxic effect. Methanol extract of C. capsularis seed showed toxicity at all the duration. Key words: Toxic effect, plant extracts, Tribolium confusum.   doi: 10.3329/jbs.v15i0.2153 J. bio-sci. 15: 133-138, 2007

scholarly journals Effect of Steroid Hormone (Ecdysone) on the Pupal and Larval Developments of Tribolium castaneum (Herbst)

2010 ◽  
Vol 45 (1) ◽  
pp. 63-68
Author(s):  
Dipali Rani Das ◽  
SI Faruki ◽  
AM Saleh Reza ◽  
Selina Parween
Keyword(s):  
Key Words ◽  
Wheat Flour ◽  
Tribolium Castaneum ◽  
Steroid Hormone ◽  
Developmental Time ◽  
Developmental Period ◽  
Whole Wheat Flour ◽  
Whole Wheat

Ecdysone is a steroid hormone especially found in insects and mammals. One day old pupae of Tribolium castaneum were exposed to crude ecdysone at different concentrations of 10, 20, 40, 80, 160, and 320 μl/kg of whole wheat flour each for 1, 3 and 5 days. Adult recovery was significantly reduced in the treated pupae (F=3.47, P<0.01, df=7), and produced deformed individuals (F=39.29, P<0.001, df=7) at all exposure periods. The developmental time was similar in both the treated and untreated ones. The latent effect of the ecdysone treatment increased both the larval (F=4.26, P<0.001, df=7) and pupal (F=8.56, P<0.001, df=7) periods of the progeny reared on untreated foods. Similarly, the latent effect hampered recovery of the adult progeny (F=7.79, P<0.001, df=7) producing deformed individuals (F=2.65, P<0.05, df=7). Key words: Ecdysone; T. castaneum; Developmental period; Adult recovery. DOI: 10.3329/bjsir.v45i1.2213 Bangladesh J. Sci. Ind. Res. 45(1), 63-68, 2010

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