Subject
Aerial spraying and dusting in forestry
1
Bacillus thuringiensis
1
Biological control
2
Biology
1
Control
3
Dispersal
1
Ecology
1
Economics
1
Insects
1
Jack pine budworm
1
Larvae
1
Pest management
3
Population
1
Predation (Biology)
2
Predatory animals
1
Research
1
Spruce budworm
6
Western spruce budworm
2
insects
1