Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1991) 64, 70-72

Ø. Austara (1991)
Severe outbreaks of the ash sawfly Tomostethus nigritus F. (Hymenoptera: Tenthredinidae) on ornamental trees in Oslo
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 64 (4), 70-72
Abstract: During spring and summer 1990 observations on the biology of the ash sawfly, Tomostethus nigritus F. were made and control options discussed. The sawfly overwinters as an co- or pronymph in the soil, and pupates in earlys spring. The tlight period lasted for about 3 weeks. The larvae fed on the leaves till June. Injecting the systemic insecticide Carbicron 50 SCW (Dicrotophos) was successful.
(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:
population dynamics/ epidemiology
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tomostethus nigritus	Ash (Fraxinus)	Norway