Abstract
The effects of methyl eugenol, cue lure and plant essential oils in rubber foam dispenser for controlling Bactrocera dorsalis and Zeugodacus cucurbitae
Highlights
The Oriental fruit fly, Bactrocera dorsalis (Hendel), and the melon fly, Zeugodacus cucurbitae (Coquillett) of the family Tephritidae are the most destructive fruit fly species worldwide, in tropic and subtropic regions (Vargas et al, 2000; Prabhakar et al, 2012a; Qin et al, 2018)
We assumed that because basil oil contains methyl eugenol (ME), the basil oil inclusions would increase the effectiveness of the traps; our results found that the most efficient trap was the single ME trap, which was matched by the ME+cue lure (CL) traps
The present study evaluated the toxicity of these essential oils, and determined that eucalyptus oil was the most toxic, causing 100 % mortality within 12 hours (Day 0); followed by clove, basil, and citronella oil for both B. dorsalis and Z. cucurbitae
Summary
The Oriental fruit fly, Bactrocera dorsalis (Hendel), and the melon fly, Zeugodacus cucurbitae (Coquillett) of the family Tephritidae are the most destructive fruit fly species worldwide, in tropic and subtropic regions (Vargas et al, 2000; Prabhakar et al, 2012a; Qin et al, 2018). Arancibia et al (2013) noted the effects of 3 % clove and citronella oils with a soy protein-lignin film incorporation on the time of knockdown of Mediterranean fruit flies (Ceratitis capitata) (Wiedemann) Their results showed that vapors emitted from the clove film caused the mortality of 40 % of the flies after four hours of exposure, which increased to 90 % after twenty hours. The Mediterranean fruit fly, C. capitata, is the most studied species interacting with essential oils (López et al, 2011), whereas B. dorsalis and Z. cucurbitae investigations with EOs have been less examined (Chang et al, 2009, 2013). The goal of the present study, was to screen plant essential oils with ME and/or CL in rubber foam lures against B. dorsalis and Z. cucurbitae, to assess the attractiveness of the single and mixed lure methods under both laboratory and field conditions, and to develop an alternative ‘lure and kill’ system sustainable in organic farming systems
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