Identification of cucurbit fruit flies and their relative attractiveness to different cues and releasers

Author:

Chiluwal Kashinath1ORCID,Shrestha Eni2,Debkota Shilpa2,Shrestha Kailash2,Sigdel Sharad2,Khanal Asmita3,Basnet Resham Bahadur4,Upadhyay Bijaya3,Aryal Lok Nath3

Affiliation:

1. Nepal Agricultural Research Council, Kathmandu

2. Himalayan College of Agricultural Sciences and Technology, Kathmandu

3. Horticulture Research Station, Malepatan, Pokhara

4. Directorate of Agricultural Research, Lumle, Nepal

Abstract

Abstract Tephritids are the major challenges for fruit and fleshy vegetable growers of the tropics and sub-tropics. Nepal also incurs huge losses of fruits and vegetables to the tephritids. This study was designed to identify the tephritid flies in Malepatan and Lumle of Gandaki Province. Bucket traps baited with methyl eugenol (ME) in Malepatan, and ME, cue lure (CL) and a mixture of ME and CL (ME + CL) with different releasers; tube, cotton and paper were installed at Lumle in 2020 summer. Three species of the fly (Bactrocera dorsalis, Bactrocera zonata and Bactrocera correcta) were recorded from Malepatan, dominated by B. dorsalis. The B. correcta count was negligible. While in Lumle, B. dorsalis was the most dominant, followed by B. zonata till July, after which, till August, B. tau followed the B. dorsalis. Seven species of the tephritids (B. zonata, B. dorsalis, B. tau, B. diversa, B. scutellaris, B. correcta and B. cucurbitae) were recorded from this region. Among the releasers, paper releaser was found more effective as compared to cotton and tube. However, the lures should be changed in a short interval, by two weeks, to acquire a satisfactory result. This study unveils that the study site already inhabits seven species of fruit flies. So, the monitoring with different cues could be an effective tool for species actuation. Additionally, the paper releasers could be recommended for further use in the traps for monitoring and mass trapping purposes.

Publisher

Research Square Platform LLC

Reference25 articles.

1. Chinese citrus fly (Bactrocera minax) management in mid-hills of Nepal;Acharya UK;The Journal of Agriculture and Environment,2019

2. Occurrences and field identities of fruit flies in sweet orange (Citrus sinensis) orchards in Sindhuli, Nepal;Adhikari D;Journal of Natural History Museum,2018

3. Adhikari, D., S.L. Joshi, R.B. Thapa, J.J. Du, D.R. Sharma, and Y.D. GC. 2019. Status and management of fruit fly in Nepal. Presented at National Plant Protection Workshop, March 3rd 2019, Hotel Le-Himalaya, Lazimpat, Kathmandu.

4. Population dynamics of fruit flies in sweet orange (Citrus sinensis L.) orchards in Sindhuli, Nepal;Adhikari D;The Journal of Agriculture and Environment,2020

5. Simulation of mating disruption and mass trapping with competitive attraction and camouflage;Byers JA;Environmental Entomology,2007

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