Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (2001) 74, 11-12

Malgorzata Skrzypczynska (2001)
Studies on insects and mites causing galls on the leaves of purple willow Salix purpurea L. in the Ojców National Park in Poland
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 74 (1), 11-12
Abstract: Analytical studies were conducted on the species composition of galls occurring on the leaves of Salix purpurea L. in the Ojców National Park in 1999-2000. The species composition of galls was identical in two consecutive years. Galls were caused by 5 species (a total of 480 galls). The most numerous species in both years was Pontania viminalis (L.).
Index of occurrence frequency and Agrell's index of species co-existence have been calculated. This index reached the highest values in case of Pontania dolichura (Thoms.) and P. viminalis (L.) in 1999 as well as Phyllocolpa leucaspis (Tischb.) and P. viminalis (L.) in 2000.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Malgorzata Skrzypczynska

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pontania viminalis	Willow (Salix)	Poland
	Pontania dolichura	Willow (Salix)	Poland
	Phyllocolpa leucapsis	Willow (Salix)	Poland