Diversity and management of fruit flies in cucurbits

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dc.contributor.advisorSood, Pankaj
dc.contributor.authorNitika
dc.date.accessioned2023-03-04T10:14:36Z
dc.date.available2023-03-04T10:14:36Z
dc.date.issued2023-02-10
dc.description.abstractThe present investigations entitled “Diversity and management of fruit flies in cucurbits” were undertaken during the year 2021-22 in Department of Entomology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur. Eight species of fruit flies viz., Zeugodacus tau (Walker), Z. cucurbitae (Coquillett), Z. scutellaris (Bezzi), Bactrocera zonata (Saunders), B. dorsalis (Hendel), B. divenderi (White & Tsuruta), Dacus longicornis (Wiedemann) and D. sphaeroidalis (Bezzi) were observed in Palam fruit fly traps at both the location (Palampur and Sundernagar) during 2022. Among all the prevalent species, B. divenderi was found to be the most dominant species followed by B. dorsalis, Z. tau, Z. scutellaris, B. zonata and Z. cucurbitae. While in the infested cucurbit samples collected from Palampur and Sundernagar; Z. tau was the predominant fruit fly species infesting all the cucurbits. Relative abundance of species was more at Palampur compared to Sundernagar except for B. zonata and D. sphaeroidalis. Likewise, species diversity (Simpson’s index) and species evenness (Shannon index) was also higher at Palampur. Temperature was observed to play a significant role in regulating population dynamics of most of prevailing species as indicated by a positive correlation. The regression analysis showed that minimum temperature was the most important factor affecting fruit fly population contributing 51 per cent at Sundernagar, while maximum temperature alone contributed 81 per cent at Palampur. Protein and yeast hydrolysate among protein baits; while cucumber and squash juice amongst cucurbit juices were most attractive for fruit fly adults, which increased with concentration and age of the flies being higher for females than males. Cucumber juice in combination with protein hydrolysate + yeast hydrolysate (10 % conc.) was found to be the most attractive for female fruit flies and could be a viable option as an integral component of fruit fly management in combination with male annhilation technique. Higher staying time of adult female flies in protein and yeast hydrolysate based combinations further validated the significance of these baits in female specific fruit fly management programmesen_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810194783
dc.keywordsCucurbits, Fruit flies, Diversity, Management, Fly traps, Simpson’s index, Shannon indexen_US
dc.language.isoEnglishen_US
dc.pages115en_US
dc.publisherCSK HPKV, Palampuren_US
dc.subEntomologyen_US
dc.themeTo study the biodiversity of tephritid fruit flies in low and mid hill regions of Himachal Pradesh; to evaluate female specific management tactics against fruit fliesen_US
dc.these.typeM.Scen_US
dc.titleDiversity and management of fruit flies in cucurbitsen_US
dc.typeThesisen_US
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