EJPAU 2010. Bednarz B. , Kochanowski D. RADIAL GROWTH RESPONSE OF SCOTS PINE (PINUS SYLVESTRIS L.), BLACK PINE (PINUS NIGRA ARNOLD), AND BLACK ALDER (ALNUS GLUTINOSA (L.) GAERTN.) TO THE NUN MOTH (LYMANTRIA MONACHA L.) OUTBREAK IN THE SŁOWIŃSKI NATIONAL PARK AND THE DAMNICA FOREST DISTRICT (NORTHERN POLAND)

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2010
Volume 13
Issue 2/volume13

Topic:

Forestry

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Bednarz B. , Kochanowski D. 2010. RADIAL GROWTH RESPONSE OF SCOTS PINE (PINUS SYLVESTRIS L.), BLACK PINE (PINUS NIGRA ARNOLD), AND BLACK ALDER (ALNUS GLUTINOSA (L.) GAERTN.) TO THE NUN MOTH (LYMANTRIA MONACHA L.) OUTBREAK IN THE SŁOWIŃSKI NATIONAL PARK AND THE DAMNICA FOREST DISTRICT (NORTHERN POLAND), EJPAU 13(2/volume13), #05.
Available Online: http://www.ejpau.media.pl/volume13/issue2/volume13/abs-05.html

RADIAL GROWTH RESPONSE OF SCOTS PINE (PINUS SYLVESTRIS L.), BLACK PINE (PINUS NIGRA ARNOLD), AND BLACK ALDER (ALNUS GLUTINOSA (L.) GAERTN.) TO THE NUN MOTH (LYMANTRIA MONACHA L.) OUTBREAK IN THE SŁOWIŃSKI NATIONAL PARK AND THE DAMNICA FOREST DISTRICT (NORTHERN POLAND)

Bartłomiej Bednarz, Dominik Kochanowski
Department of Forest Protection and Forest Climatology, Agricultural University of Cracow, Poland

ABSTRACT

It was found that deep growth depressions which occurred between 1981
and 1983 in Scots pine (Pinus sylvestris L.) and black pine (Pinus
nigra Arnold) in the Słowiński National Park and neighboring forests (Damnica
Forest District) were the consequence of the nun moth (Lymantria monacha L.)
outbreak. Black alder (Alnus glutinosa (L.) Gaertn.), growing in the same
area, was free of mass feeding of this foliophagous insect. Mean widths of annual
rings of both these pine species in a 5-year period in which the nun moth outbreak
occurred were smaller than mean widths in 5-year periods before and after the
outbreak. These differences were statistically significant. It was also found
that the effect of the nun moth feeding on diameter growth of Scots and black
pines growing on a dry coniferous forest site was lower than in the case of a
fresh mixed coniferous forest site. These differences were statistically significant.

Key words: Lymantria monacha, foliophagous insects, outbreak, defoliation, growth depression, tree rings.

Bartłomiej Bednarz
Department of Forest Protection and Forest Climatology,
Agricultural University of Cracow, Poland
Al. 29 Listopada 46, 31-425 Cracow, Poland
phone: +4812 6625062
email: rlbednar@cyf-kr.edu.pl

Dominik Kochanowski
Department of Forest Protection and Forest Climatology,
Agricultural University of Cracow, Poland
Al. 29 Listopada 46, 31-425 Cracow, Poland

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.