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Articles containing the keyword 'gall stage'
Category : Article
article id 5276,
category
Article
(1986).
Parasitization in Petrova resinella (Lepidoptera, Tortricidae) galls in relation to industrial air pollutants.
Silva Fennica
vol.
20
no.
3
article id 5276.
https://doi.org/10.14214/sf.a15455
Keywords:
Pinus sylvestris;
Scots pine;
insect damages;
air pollution;
Petrova resinella;
gall stage;
parasites
Abstract |
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Author Info
Paratization of Petrova resinella L. in the gall stage was studied in the surrounding of Harjavalta, south-western Finland, in relation to industrial air pollution. Of the studied 283 galls, 28% produced a moth, 52% of the larvae/pupae were paratisized, and 20% were empty or contained a dead larva. The proportion of paratisized galls did not depend on the distance from emission sources of industrial air pollutants.
The PDF includes an abstract in Finnish.
-
Heliövaara,
E-mail:
kh@mm.unknown
- Väisänen, E-mail: rv@mm.unknown
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