Effect of forest fertilization on pine needle-feeding Coleoptera.

by Heliövaara, Kari, Löyttyniemi, Kari
Published 1989-01-01

The pine bark bug, Aradus cinnamomeus (Heteroptera, Aradidae) and the height growth rate of young Scots pines.

by Heliövaara, Kari
Published 1982-01-01

Quantitative variation in the elemental composition of Scots pine needles along a pollutant gradient.

by Heliövaara, Kari, Väisänen, Rauno
Published 1989-01-01

Interactions among herbivores in three polluted pine stands.

by Heliövaara, Kari, Väisänen, Rauno
Published 1988-01-01

Invertebrates of young Scots pine stands near the industrial town of Harjavalta, Finland.

by Heliövaara, Kari, Väisänen, Rauno
Published 1989-01-01

Effect of nitrogen fertilization and insecticides on the population density of pine bark bug, Aradus cinnamomeus (Heteroptera, Aradidae).

by Heliövaara, Kari, Annila, Erkki, Terho, Eero
Published 1983-01-01

Chemical control of cone pests in a Norway spruce seed orchard.

by Annila, Erkki, Heliövaara, Kari
Published 1991-01-01

Comparison of protection methods of pine stacks against Tomicus piniperda.

by Jääskelä, Mika, Heliövaara, Kari, Peltonen, Mikko, Saarenmaa, Hannu
Published 1997-01-01

Occurrence of Petrova resinella (Lepidoptera, Tortricidae) in a gradient of industrial air pollutants.

by Heliövaara, Kari
Published 1986-01-01

Risk of bark beetle (Coleoptera, Scolytidae) damage in a spruce forest restoration area in central Finland

by Joensuu, Johanna, Heliövaara, Kari, Savolainen, Eino
Published 2008-01-01

Forest insects and environmental variation in stand edges.

by Peltonen, Mikko, Heliövaara, Kari, Väisänen, Rauno
Published 1997-01-01

Parasitization in Petrova resinella (Lepidoptera, Tortricidae) galls in relation to industrial air pollutants.

by Heliövaara, Kari, Väisänen, Rauno
Published 1986-01-01