Environmental Entomology (1996) 25, 143-146

Mikhail V. Kozlov, Elena L. Zvereva and Andrey V. Selikhovkin (1996)
Decreased performance of Melasoma lapponica (Coleoptera: Chrysomelidae) fumigated by sulphur dioxide direct toxicity versus host plant quality
Environmental Entomology 25 (1), 143-146
Abstract: We separated direct and indirect effects of sulphur dioxide on performance of the leaf beetle Melasoma lapponica L. Ramets of naturally growing bushes of Salix borealis (Fries) Nasar., enclosed in plastic chambers, were infested by 1st instars and fumigated with either ambient air or 1 of 4 SO₂ concentrations (100, 200, 500, and 1,000 µg/m³) for 15 d. Simultaneously, larvae that were fed leaves from these chambers were reared outside chambers. Survival of insects grown outside chambers increased or stayed the same with an increase of SO₂ concentration applied to their host individuals, indicating that action of SO₂ from food was neutral or beneficial for insects. Therefore the decrease in survival of insects grown in chambers with an increase of SO₂ concentration was attributed to the direct toxicity of sulphur dioxide. Changes in beetle weight were not significant in both experiments.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Mikhail V. Kozlov, Elena L. Zvereva

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Chrysomela lapponica	Willow (Salix)	Russia (Eur.)