Abstract
Fuller's rose weevil (FRW; Pantomorus cervinus) (Coleoptera: Curculionidae), a polyphagous pest of citrus and other horticultural plants, was studied in laboratory assays designed to identify potential semiochemicals from host plants that might be exploited for weevil pest management. Using still-air bioassays, weevils were found to be most attracted to fresh whole lemon leaves compared with cut and/or dried lemon leaves. White clover, an understorey plant in kiwifruit orchards, was also found to be attractive to weevils in the dual-choice tests. Coupled gas chromatography-electrophysiological recording of weevil antennal responses to commercial extracts of lemon leaves indicated that weevils detected at least eight monoterpene components of the oil, i.e. linalool, terpinen-4-ol, nerol, neral, geraniol, geranial, neryl acetate and geranyl acetate. Significant antennal dose-responses were evident to lemon leaf oil, lemon constituent odours and two major green leaf volatiles detected from clover (Z)-3-hexenol and (Z)-3-hexenyl acetate. Still-air dual-choice tests on individual chemicals showed significant repellency from seven of the lemon leaf compounds at 500 μg/100 μL (all except geranyl acetate). Weevils were attracted to a synthetic blend consisting of the green leaf volatiles over a range of concentrations (1, 10 and 100 mg/100 μL), as well as to clover leaves. These plant kairomone components may be potentially useful as repellents or attractants for FRW control and management programme.
| Original language | English |
|---|---|
| Pages (from-to) | 24-31 |
| Number of pages | 8 |
| Journal | Australian Journal of Entomology |
| Volume | 47 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 2008 |
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Keywords
- Attractant
- Behaviour
- Host plant volatiles
- Pantomorus cervinus
- Repellent
ASJC Scopus subject areas
- Insect Science
Cite this
Behavioural and electrophysiological responses of Pantomorus cervinus (Boheman) (Coleoptera : Curculionidae) to host plant volatiles. / Suk Ling, Wee; El-Sayed, Ashraf M.; Gibb, Andrew R.; Mitchell, Vanessa; Suckling, David M.
In: Australian Journal of Entomology, Vol. 47, No. 1, 02.2008, p. 24-31.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Behavioural and electrophysiological responses of Pantomorus cervinus (Boheman) (Coleoptera
T2 - Curculionidae) to host plant volatiles
AU - Suk Ling, Wee
AU - El-Sayed, Ashraf M.
AU - Gibb, Andrew R.
AU - Mitchell, Vanessa
AU - Suckling, David M.
PY - 2008/2
Y1 - 2008/2
N2 - Fuller's rose weevil (FRW; Pantomorus cervinus) (Coleoptera: Curculionidae), a polyphagous pest of citrus and other horticultural plants, was studied in laboratory assays designed to identify potential semiochemicals from host plants that might be exploited for weevil pest management. Using still-air bioassays, weevils were found to be most attracted to fresh whole lemon leaves compared with cut and/or dried lemon leaves. White clover, an understorey plant in kiwifruit orchards, was also found to be attractive to weevils in the dual-choice tests. Coupled gas chromatography-electrophysiological recording of weevil antennal responses to commercial extracts of lemon leaves indicated that weevils detected at least eight monoterpene components of the oil, i.e. linalool, terpinen-4-ol, nerol, neral, geraniol, geranial, neryl acetate and geranyl acetate. Significant antennal dose-responses were evident to lemon leaf oil, lemon constituent odours and two major green leaf volatiles detected from clover (Z)-3-hexenol and (Z)-3-hexenyl acetate. Still-air dual-choice tests on individual chemicals showed significant repellency from seven of the lemon leaf compounds at 500 μg/100 μL (all except geranyl acetate). Weevils were attracted to a synthetic blend consisting of the green leaf volatiles over a range of concentrations (1, 10 and 100 mg/100 μL), as well as to clover leaves. These plant kairomone components may be potentially useful as repellents or attractants for FRW control and management programme.
AB - Fuller's rose weevil (FRW; Pantomorus cervinus) (Coleoptera: Curculionidae), a polyphagous pest of citrus and other horticultural plants, was studied in laboratory assays designed to identify potential semiochemicals from host plants that might be exploited for weevil pest management. Using still-air bioassays, weevils were found to be most attracted to fresh whole lemon leaves compared with cut and/or dried lemon leaves. White clover, an understorey plant in kiwifruit orchards, was also found to be attractive to weevils in the dual-choice tests. Coupled gas chromatography-electrophysiological recording of weevil antennal responses to commercial extracts of lemon leaves indicated that weevils detected at least eight monoterpene components of the oil, i.e. linalool, terpinen-4-ol, nerol, neral, geraniol, geranial, neryl acetate and geranyl acetate. Significant antennal dose-responses were evident to lemon leaf oil, lemon constituent odours and two major green leaf volatiles detected from clover (Z)-3-hexenol and (Z)-3-hexenyl acetate. Still-air dual-choice tests on individual chemicals showed significant repellency from seven of the lemon leaf compounds at 500 μg/100 μL (all except geranyl acetate). Weevils were attracted to a synthetic blend consisting of the green leaf volatiles over a range of concentrations (1, 10 and 100 mg/100 μL), as well as to clover leaves. These plant kairomone components may be potentially useful as repellents or attractants for FRW control and management programme.
KW - Attractant
KW - Behaviour
KW - Host plant volatiles
KW - Pantomorus cervinus
KW - Repellent
UR - http://www.scopus.com/inward/record.url?scp=39149114128&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=39149114128&partnerID=8YFLogxK
U2 - 10.1111/j.1440-6055.2007.00624.x
DO - 10.1111/j.1440-6055.2007.00624.x
M3 - Article
AN - SCOPUS:39149114128
VL - 47
SP - 24
EP - 31
JO - Austral Entomology
JF - Austral Entomology
SN - 2052-174X
IS - 1
ER -