Microwave radiation for the management of red flour beetle, Tribolium Castaneum (Herbst) (Record no. 289673)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04425nam a22002057a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632.6 |
| Item number | SIK/MI PG |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sikha Raju |
| 245 ## - TITLE STATEMENT | |
| Title | Microwave radiation for the management of red flour beetle, Tribolium Castaneum (Herbst) |
| Remainder of title | (Coleoptera:Tenebrionidae) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Vellanikkara |
| Name of publisher, distributor, etc | Department of Agricultural Entomology, College of Agriculture |
| Date of publication, distribution, etc | 2022 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 82p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | MSc |
| 520 ## - SUMMARY, ETC. | |
| Abstract | Red flour beetle, Tribolium castaneum, is a cosmopolitan stored grain pest <br/>imparting severe economic loss in cereal-based products, especially wheat flour. <br/>Microwave irradiation, an eco-friendly physical management strategy without any <br/>residual effect on food and less resistance development, can be an alternative to <br/>chemical control measures. Hence, the study entitled “Microwave radiation for the <br/>management of red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: <br/>Tenebrionidae)” was conducted to assess the effectiveness of household microwave <br/>system for the management of red flour beetle, <br/>T. castaneum and to study the effect of microwave radiation on nutritional factors of <br/>wheat flour. <br/> The experiment was carried out from January 2021 to October 2021 at <br/>Pesticide Residue Testing Laboratory, Department of Agricultural Entomology, and at <br/>the Agri-Business Incubator, College of Agriculture, Vellanikkara, Kerala <br/>Agricultural University, Thrissur. All the developmental stages of T. castaneum were <br/>irradiated at five different microwave powers (136, 264, 440, 616 and 800 W) by <br/>varying the flour bed thickness of wheat flour at five levels (1, 2, 3, 4 and 5 cm) and <br/>exposure time at six levels (10, 20, 30, 40, 50 and 60 s) along with unirradiated <br/>control. <br/>Eggs (two days old), grubs (20±2 day old), pupae and adults (17±2 day old) of <br/>T. castaneum were irradiated in a household microwave to assess the susceptibility of <br/>various life stages. Larvae were most vulnerable to irradiation. Susceptibility of eggs <br/>and adults but were comparable to each other, while the pupal stage exhibited <br/>relatively higher tolerance to microwave treatment.<br/> Microwave power was directly proportional to the mortality of all life stages of <br/>T. castaneum. The mortality of egg, pupa and adult was highest at 800 W power level, <br/>whereas pupal mortality was comparable and higher at 616 and 800 W. The death rate <br/>of all the developmental stages was highest at the lowest flour bed thickness of one <br/>cm. Similar to the effect of microwave power, exposure period and mortality was <br/>directly proportional to each other. At the longest exposure time (60 s), egg, grub and <br/>adult mortality was high and pupal mortality at 50, and 60 s was comparable. <br/>The analysis on the interaction of power and thickness revealed that mortality <br/>of all stages of T. castaneum increased with an increase in power level and decrease in <br/>flour bed thickness. In power-time interaction, higher irradiation dose and longer <br/>exposure period resulted in higher mortality of T. castaneum. The interaction effect of <br/>thickness and time showed that mortality was higher at lower flour bed thickness and <br/>longer exposure time. The analysis on the interaction of power, thickness and time <br/>recorded higher mortality at higher dose, lower thickness and longer exposure period <br/>of microwave radiation. <br/> The best two treatment combinations that recorded complete mortality of all <br/>life stages of T. castaneum was 800 W irradiation dose exposed for 50 s at higher <br/>flour bed thicknesses of four and five cm. The comparison of nutritional parameters of <br/>the two treatments with control indicated a decrease in moisture content. The gluten <br/>content and colour were unaffected by irradiation. There was an increase in vitamin <br/>B1, B2 and B6 and a slight decrease in vitamin B3 content in treated samples compared <br/>with control. <br/>Microwave irradiation of wheat flour at 800 W for 50 s at a flour thickness of <br/>five cm is the best treatment combination for the management of red flour beetle <br/>because of the efficacy, ease of application, lack of residual effect without affecting <br/>the nutritional quality. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Agricultural Entomology |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Red flour beetle |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Tribolium Castaneum |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Coleoptera:Tenebrionidae |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Berin Pathrose (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://krishikosh.egranth.ac.in/handle/1/5810190099 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Item type | Theses |
| Not for loan | Collection code | Home library | Current library | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Not For Loan | Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 07/07/2022 | 632.6 SIK/MI PG | 175341 | 07/07/2022 | Theses |