Abstract
Brontispa longissima (Gestro) (Coleoptera: Hispidae) is a new invasive pest in China that has caused severe economic damage to palm trees (Arecaceae, Palmae). The response of this beetle to coconut palm ( Cocos nucifera ) leaf volatiles is investigated in laboratory bioassays. Both sexes are attracted to a mixture of β ‐myrcene, (−)‐limonene and E ‐2‐hexen‐1‐ol (1 : 6 : 1), which are key components of coconut palm leaf volatiles. A blend of β ‐myrcene and (−)‐limonene (0.7 : 1–1 : 0.7) in low amounts (100 ng) elicits aggregation and oviposition in females. Chemical analyses of food‐deprived, gravid female B. longissima show high concentrations of β ‐myrcene and (−)‐limonene in their accessory glands, suggesting that female beetles sequester both compounds and release them during oviposition.
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Claims 5
Claim · model-written summary
Both sexes of the beetle were attracted to the three-component volatile mixture.
- Taxon
- Brontispa longissima
Brontispa longissimat0 - Interactor
- coconut palm
Cocos nuciferae0host - Compound
- β ‐myrcene, (−)‐limonene and E ‐2‐hexen‐1‐ole0
- Outcome
- attractede0
- Value
- 1 : 6 : 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both sexes are attracted to a mixture of β ‐myrcene, (−)‐limonene and E ‐2‐hexen‐1‐ol (1 : 6 : 1), which are key components of coconut palm leaf volatiles”
t0“Brontispa longissima”
Claim · model-written summary
A low-amount two-component blend elicited female aggregation.
- Taxon
- Brontispa longissimaBrontispa longissimat0
- Treatment
- A blend of β ‐myrcene and (−)‐limonene (0.7 : 1–1 : 0.7) in low amounts (100 ng)e0
- Interactor
- coconut palmCocos nuciferat0host
- Outcome
- aggregatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A blend of β ‐myrcene and (−)‐limonene (0.7 : 1–1 : 0.7) in low amounts (100 ng) elicits aggregation and oviposition in females”
t0“Brontispa longissima to coconut palm”
Claim · model-written summary
The two-component blend elicited female oviposition.
- Taxon
- Brontispa longissimaBrontispa longissimat0
- Treatment
- A blend of β ‐myrcene and (−)‐limonene (0.7 : 1–1 : 0.7) in low amounts (100 ng)e0
- Interactor
- coconut palmCocos nuciferat0host
- Outcome
- ovipositione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A blend of β ‐myrcene and (−)‐limonene (0.7 : 1–1 : 0.7) in low amounts (100 ng) elicits aggregation and oviposition in females”
t0“Brontispa longissima to coconut palm”
Claim · model-written summary
Food-deprived gravid beetle females had high accessory-gland concentrations of the two volatiles.
- Taxon
- B. longissimaBrontispa longissimae0
- Organ / stage
- accessory glandse0
- Interactor
- coconut palmCocos nuciferat0host
- Outcome
- high concentrations of β ‐myrcene and (−)‐limonenee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical analyses of food‐deprived, gravid female B. longissima show high concentrations of β ‐myrcene and (−)‐limonene in their accessory glands”
t0“coconut palm”
Claim · model-written summary
Authors suggest females sequester and release both compounds during oviposition.
- Taxon
- Brontispa longissimaBrontispa longissimat0
- Interactor
- coconut palmCocos nuciferat0host
- Outcome
- release them during ovipositione0
- Qualifier
- sequester both compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggesting that female beetles sequester both compounds and release them during oviposition”
t0“Brontispa longissima to coconut palm”