Nematology (2000) 2, p. 759 (Haukeland Salinas et al.)

Solveig Haukeland Salinas and Kari Brekke (2000)
Yield loss in strawberries caused by Aphelenchoides blastophthorus
Nematology 2 (7), 759-759
Presented at the 25th International Nematology Symposium, Herzliya, Israel, 2-7 April 2000
Abstract: Aphelenchoides blastophthorus is ecto- and endoparasitic on leaf and bud tissues of scabious and some other plants; it also readily reproduces on fungi. A. blastophthorus was recognized for the first time as a problem in Norwegian strawberry production in 1972. In recent years this nematode appears to be increasingly important in strawberry production in some parts, of the country. Symptoms, runner-production and yield was compared for the strawberry varieties: Honeoye, Inga, Jonsok, Korona and Zephyr. Certified plants were artificially infested with 100 nematodes per plant and planted outdoors in confined microplots. Planting took place at the end of May. Symptoms were not expressed in the first year; however, samples of runners demonstrated that nematodes were present. The following spring symptoms were recorded as distorted/darker green leaves, and decreased growth. In this experiment, damage was most severe on Honeoye plants whereas the Korona plants appeared less affected. As the season progressed, immediate symptoms became less clear and by July/August it was difficult to differentiate infested and non-infested plants. For all the varieties yield loss and the number of runners per plant was significantly reduced in infected plants compared to uninfected controls.

Research topic(s) for pests/diseases/weeds:
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphelenchoides blastophthorus	Strawberry (Fragaria)	Norway