Mass trapping of cowpea pod borer maruca vitrata (F.) (lepidoptera; pyralidae) using sex pheromones (Record no. 163816)
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000 -LEADER | |
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fixed length control field | 03217nam a22001697a 4500 |
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
Classification number | 632.6 |
Item number | EUR/MA |
100 ## - MAIN ENTRY--PERSONAL NAME | |
Personal name | Eurekha Savadatti |
245 ## - TITLE STATEMENT | |
Title | Mass trapping of cowpea pod borer maruca vitrata (F.) (lepidoptera; pyralidae) using sex pheromones |
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
Place of publication, distribution, etc | Padannakkad |
Name of publisher, distributor, etc | Department of Agricultural Entomology, College of Agriculture |
Date of publication, distribution, etc | 2018 |
300 ## - PHYSICAL DESCRIPTION | |
Extent | x,76p |
502 ## - DISSERTATION NOTE | |
Dissertation note | MSc |
520 3# - SUMMARY, ETC. | |
Abstract | A study was conducted know the efficacy of synthetic sex pheromone of legume pod borer Maruca vitrata (F.) (Lepidoptera: Pyralidae) at College of Agriculture, Padannakkad. Also investigated the female calling and mating behaviour of the adult moths of M. vitrata. Response of commercial lure to male moths of the test insect was studied in Electroantennogram at NBAIR, Bangalore. The commercial synthetic pheromone lure of legume pod borer M.vitrata from M/s Pest control India (P) Limited, Bangalore was tested and found that it failed to attract not even a single moth. Subsequently, the mating behaviour of the moth was undertaken in detail to investigate whether pheromones are involved in the mating process of the insect. 30 per cent of moths emerged during photophase (6am-5pm) out of which male moths constituted 36.25% and female moths constituted 23.75%. During scotophase (6pm-5am), 69.68% moths emerged, out of which 63.12% was males and 76.25% was females. The emergence found to peak at 5th and 9th hour of scotophase. During calling period female extrudes its pheromone gland beyond the abdominal tip. Female calling behaviour of one to eight day old moths was observed throughout the scotophase. A single calling peak was observed in all aged moths at 6 th hour of scotophase except for three old day moths, which showed additional peaks of calling at fifth, eighth and 9th hour of scotophase. For three-day-old moths, 43.5% was the mean percent of calling at 6th hour of scotophase. The mating behaviour of 1-8 day old M.vitrata moths involving 15 pairs throughout the scotophase showed maximum mating percentage of 26.2 % and 16.6 % for 3 day old and 2 day old moths respectively. Electroantennogram study conducted to know the response of 3-day-old male moths to synthetic lure obtained from PCI, Bangalore showed that response to the stimulus was 0.05mv only, which was the same for the solvent hexane and the air. 75 This showed that there was no distinct physiological response for synthetic pheromone lure. For further confirmation, GC-MS analysis was done and the compound E, E-10, 12-Hexadecadienal was identified at a retention time of 16.42 min. This is the major pheromonally active compound identified in previous studies. In GC- EAD analysis, the response of M.vitrata male moths to E, E-10, 12-Hexadecadienal was checked by matching EAD and FID peaks but without any response. So, the exact reason for the absence of response to commercial synthetic lure is to be elucidated in future studies for developing an effective commercial pheromone for the legume spotted pod borer M. vitrata. |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
Topical term or geographic name as entry element | Agricultural Entomology |
700 ## - ADDED ENTRY--PERSONAL NAME | |
Personal name | Sreekumar, K M (Guide) |
856 ## - ELECTRONIC LOCATION AND ACCESS | |
Uniform Resource Identifier | http://krishikosh.egranth.ac.in/handle/1/5810146943 |
942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
Source of classification or shelving scheme | |
Item type | Theses |
Not for loan | Collection code | Permanent location | Current location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
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Not For Loan | Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2019-02-20 | 632.6 EUR/MA | 174419 | 2019-02-20 | Theses |