Journal of Pest Science (2007) 80, 15-19

K.G.H. Breedveld and L.K. Tanigoshi (2007)
Seasonal phenology of Enarmonia formosana (Lepidoptera: Tortricidae) and egg parasitism by Trichogramma cacoeciae (Hymenoptera: Trichogrammatidae) in Washington State, USA
Journal of Pest Science 80 (1), 15-19
Abstract: General biology, seasonal flight numbers and ovipositional data were gathered to understand the phenology of the cherry bark tortrix, Enarmonia formosana Scopoli in Seattle, WA. Pheromone trapping during 2001 and 2002 showed a continuous flight period from May to September. During this time the greatest abundance of adults occurred during July and August. The combined seasonal egg data and larval developmental times indicate E. formosana is a univoltine species in the Pacific Northwest. Field releases of Trichogramma cacoeciae Marchal increased E. formosana egg parasitism on individual trees. During the two years, parasitism levels ranged from 72 to 74%.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
population dynamics/ epidemiology
Research topic(s) for beneficials or antagonists:
inundative/inoculative release

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Enarmonia formosana		U.S.A. (NW)
Trichogramma cacaeciae (parasitoid)	Enarmonia formosana		U.S.A. (NW)