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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Research » Research » Publications at this Location » Publication #323312

Research Project: Integrated Pest Management for Insect Pests of Horticultural Crops

Location: Horticultural Crops Research

Title: Biotic and abiotic factors impacting development, behavior, phenology, and reproductive biology of Drosophila suzukii

Author
item Hamby, Kelly - UNIVERSITY OF MARYLAND
item Bellamy, David - OCEAN SPRAY CRANBERRY
item Chiu, Joanna - UNIVERSITY OF CALIFORNIA
item Lee, Jana
item Walton, Vaughn - OREGON STATE UNIVERSITY
item Wiman, Nik - OREGON STATE UNIVERSITY
item York, Riki - OREGON STATE UNIVERSITY
item Biondi, Antonio - UNIVERSITY OF CATANIA

Submitted to: Journal of Pest Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/21/2016
Publication Date: 4/9/2016
Citation: Hamby, K.A., Bellamy, D., Chiu, J.C., Lee, J.C., Walton, V.M., Wiman, N.G., York, R.M., Biondi, A. 2016. Biotic and abiotic factors impacting development, behavior, phenology, and reproductive biology of Drosophila suzukii. Journal of Pest Science. 89(3):605-619. doi: 10.1007/s10340-016-0756-5.

Interpretive Summary: Spotted wing drosophila (SWD) quickly emerged as a devastating invasive pest of small and stone fruits in the Americas and Europe. To better understand the population dynamics of SWD, we reviewed recent work on juvenile development, adult reproduction, and seasonal variation including the environmental and biological factors that influence these processes. SWD develop as larvae and pupae quickest at moderately warm temperatures, pupation can occur outside the fruit host, and larvae exhibit some immunity to parasitism. Adults use visual cues and surface vibrations for courtship and exhibit a two periods of activity in a day under “summer” conditions. Under 20-27°C and various conditions, development from egg to adult can take 10-17 days, females first laid eggs within 1 to 8 days and their lifetime fecundity varies from <100 to 636. Oviposition is consistently high in raspberry hosts and fruits with lower penetration force, and the presence of Wolbachia endosymbionts can lower fertility. D. suzukii exhibit seasonal variation with a darker winter morph that is more cold tolerant. Also, SWD undergo reproductive diapause in the fall, and colder temperatures and shorter day lengths influence reproduction. To develop viable IPM programs for SWD, knowledge of abiotic and biotic conditions that impact D. suzukii life history parameters and population dynamics is critical.

Technical Abstract: Spotted wing drosophila, Drosophila suzukii, quickly emerged as a devastating invasive pest of small and stone fruits in the Americas and Europe. To better understand the population dynamics of D. suzukii, we reviewed recent work on juvenile development, adult reproduction, and seasonal variation in life history parameters including the abiotic/biotic factors that influence these processes. Juvenile development is optimal at moderately warm temperatures, pupation can occur outside the fruit host, and larvae exhibit some immunity to parasitism. Adults use visual cues and substrate-borne vibrations for courtship and exhibit a bimodal locomotor activity pattern under “summer” conditions. Under 20-27°C and various conditions, development from egg to adult can take 10-17 days, females first laid eggs within 1 to 8 days and their lifetime fecundity varies from <100 to 636. Oviposition is consistently high in raspberry hosts and fruits with lower penetration force, and the presence of Wolbachia endosymbionts can lower fertility. D. suzukii exhibit seasonal variation with a darker winter morph that is more cold tolerant. Also, D. suzukii undergo reproductive diapause in the fall, and colder temperatures and shorter day lengths influence reproduction. To develop viable IPM programs for D. suzukii, knowledge of abiotic and biotic conditions that impact D. suzukii life history parameters and population dynamics is critical.