Insects (2022) 13 (11 - 971)

Kevin R. Cloonan, Wayne S. Montgomery, Teresa I. Narvaez, Daniel Carrillo and Paul E. Kendra (2022)
Community of bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) in agricultural and forest ecosystems with laurel wilt
Insects 13 (11 - 971)
Abstract: Redbay ambrosia beetle, Xyleborus glabratus, is an invasive wood-boring pest first detected in the USA in 2002 in Georgia. The beetle's dominant fungal symbiont, Harringtonia lauricola, causes laurel wilt, a lethal disease of trees in the Lauraceae. Over the past 20 years, X. glabratus and laurel wilt have spread to twelve southeastern states, resulting in high mortality of native Persea species, including redbay (P. borbonia), swampbay (P. palustris), and silkbay (P. humilis). Laurel wilt also threatens avocado (P. americana) in south Florida, but in contrast to the situation in forests, X. glabratus is detected at very low levels in affected groves. Moreover, other species of ambrosia beetle have acquired H. lauricola and now function as secondary vectors. To better understand the beetle communities in different ecosystems exhibiting laurel wilt, parallel field tests were conducted in an avocado grove in Miami-Dade County and a swampbay forest in Highlands County, FL. Sampling utilized ethanol lures (the best general attractant for ambrosia beetles) and essential oil lures (the best attractants for X. glabratus), alone and in combination, resulting in detection of 20 species. This study documents host-related differences in beetle diversity and population levels, and species-specific differences in chemical ecology, as reflected in efficacy of lures and lure combinations.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Paul E. Kendra

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Xyleborinus saxeseni		U.S.A. (SE)
	Xyleborinus gracilis		U.S.A. (SE)
	Xyleborus glabratus	Avocado (Persea americana)	U.S.A. (SE)
	Harringtonia lauricola	Avocado (Persea americana)	U.S.A. (SE)
	Xyleborinus andrewesi		U.S.A. (SE)