α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae).
The tea shot-hole borer, Euwallacea fornicatus Eichhoff, is an ambrosia beetle endemic to Asia and a pest of commercial tea, Camellia sinensis (L.) Kuntze. Recently, a complex of species morphologically similar to E. fornicatus has been recognized, which includes new pests established in Israel and...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2017-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179416&type=printable |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849766173152903168 |
|---|---|
| author | Paul E Kendra David Owens Wayne S Montgomery Teresa I Narvaez Gary R Bauchan Elena Q Schnell Nurhayat Tabanca Daniel Carrillo |
| author_facet | Paul E Kendra David Owens Wayne S Montgomery Teresa I Narvaez Gary R Bauchan Elena Q Schnell Nurhayat Tabanca Daniel Carrillo |
| author_sort | Paul E Kendra |
| collection | DOAJ |
| description | The tea shot-hole borer, Euwallacea fornicatus Eichhoff, is an ambrosia beetle endemic to Asia and a pest of commercial tea, Camellia sinensis (L.) Kuntze. Recently, a complex of species morphologically similar to E. fornicatus has been recognized, which includes new pests established in Israel and the USA, both in California and Florida. Collectively termed E. nr. fornicatus, these cryptic species carry symbiotic Fusarium spp. fungi, some of which cause dieback disease in susceptible hosts, which include avocado, Persea americana Miller. Due to the threat to this economically important crop, research was initiated to evaluate efficacy of kairomone-based lures for detection of the beetle in Florida (termed the Florida tea shot hole borer, FL-TSHB). A series of field tests were conducted in 2016 in commercial avocado groves known to have FL-TSHB at various population levels. All tests evaluated lures containing quercivorol (p-menth-2-en-1-ol) and α-copaene, presented separately and in combination; and one test evaluated effect of trap type on beetle captures. In addition, electroantennography (EAG) was used to quantify female olfactory responses to lure emissions. This study identified (-)-α-copaene as a new attractant for FL-TSHB, equivalent in efficacy to quercivorol (the standard lure for Euwallacea detection in the USA); however, the combination of lures captured significantly more FL-TSHB than either lure alone. This combination resulted in synergistic attraction at two field sites and additive attraction at a third site. Sticky panel traps captured more FL-TSHB than comparably-baited Lindgren funnel traps. Females engaged in host-seeking flight from 11:00 to 16:00 hr (EST), with peak numbers observed between 12:00 and 13:00 hr. EAG analyses confirmed olfactory chemoreception of both kairomones, with a higher response elicited with the combination of volatiles. Results indicate that detection of pest E. nr. fornicatus in Florida can be improved by using a two-component lure consisting of p-menth-2-en-1-ol and (-)-α-copaene. |
| format | Article |
| id | doaj-art-4561f01b8bf341b18c880fe38e4e8cd4 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-4561f01b8bf341b18c880fe38e4e8cd42025-08-20T03:04:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01126e017941610.1371/journal.pone.0179416α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae).Paul E KendraDavid OwensWayne S MontgomeryTeresa I NarvaezGary R BauchanElena Q SchnellNurhayat TabancaDaniel CarrilloThe tea shot-hole borer, Euwallacea fornicatus Eichhoff, is an ambrosia beetle endemic to Asia and a pest of commercial tea, Camellia sinensis (L.) Kuntze. Recently, a complex of species morphologically similar to E. fornicatus has been recognized, which includes new pests established in Israel and the USA, both in California and Florida. Collectively termed E. nr. fornicatus, these cryptic species carry symbiotic Fusarium spp. fungi, some of which cause dieback disease in susceptible hosts, which include avocado, Persea americana Miller. Due to the threat to this economically important crop, research was initiated to evaluate efficacy of kairomone-based lures for detection of the beetle in Florida (termed the Florida tea shot hole borer, FL-TSHB). A series of field tests were conducted in 2016 in commercial avocado groves known to have FL-TSHB at various population levels. All tests evaluated lures containing quercivorol (p-menth-2-en-1-ol) and α-copaene, presented separately and in combination; and one test evaluated effect of trap type on beetle captures. In addition, electroantennography (EAG) was used to quantify female olfactory responses to lure emissions. This study identified (-)-α-copaene as a new attractant for FL-TSHB, equivalent in efficacy to quercivorol (the standard lure for Euwallacea detection in the USA); however, the combination of lures captured significantly more FL-TSHB than either lure alone. This combination resulted in synergistic attraction at two field sites and additive attraction at a third site. Sticky panel traps captured more FL-TSHB than comparably-baited Lindgren funnel traps. Females engaged in host-seeking flight from 11:00 to 16:00 hr (EST), with peak numbers observed between 12:00 and 13:00 hr. EAG analyses confirmed olfactory chemoreception of both kairomones, with a higher response elicited with the combination of volatiles. Results indicate that detection of pest E. nr. fornicatus in Florida can be improved by using a two-component lure consisting of p-menth-2-en-1-ol and (-)-α-copaene.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179416&type=printable |
| spellingShingle | Paul E Kendra David Owens Wayne S Montgomery Teresa I Narvaez Gary R Bauchan Elena Q Schnell Nurhayat Tabanca Daniel Carrillo α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). PLoS ONE |
| title | α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). |
| title_full | α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). |
| title_fullStr | α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). |
| title_full_unstemmed | α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). |
| title_short | α-Copaene is an attractant, synergistic with quercivorol, for improved detection of Euwallacea nr. fornicatus (Coleoptera: Curculionidae: Scolytinae). |
| title_sort | α copaene is an attractant synergistic with quercivorol for improved detection of euwallacea nr fornicatus coleoptera curculionidae scolytinae |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179416&type=printable |
| work_keys_str_mv | AT paulekendra acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT davidowens acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT waynesmontgomery acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT teresainarvaez acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT garyrbauchan acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT elenaqschnell acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT nurhayattabanca acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae AT danielcarrillo acopaeneisanattractantsynergisticwithquercivorolforimproveddetectionofeuwallaceanrfornicatuscoleopteracurculionidaescolytinae |