Subject
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Cones (Botany)
1
DDT (Insecticide)
1
Defoliation
1
Diagnosis
1
Diseases
1
Diseases and insects
1
Ecology
1
Effect of air pollution on
1
Fir
1
Forest fires
1
Forest genetics
1
Forest products industry
1
Forestry
1
Forêts
1
History
1
Insect populations
1
Insect traps
1
Insect-plant relationships
1
Insectes
1
Insectes forestiers
1
Lepidoptera
1
Maladies
1
Maladies et fléaux
1
Mites
1
Moths
1
National parks and reserves
1
Periodicals
1
Pest control
1
Pinaceae
1
Plants, Ornamental
1
Prevention and control
1
Périodiques
1
Recombinant baculoviruses
1
Research
1
Science
1
Seeds
1
Silvicultural systems
1
Social aspects
1
Tree crops
1
Type specimens
1
Woodlots
1
Wounds and injuries
1