title: Bioassaying an insect virus on leaves. II. The influence of certain factors associated with the larvae and the leaves.
mesh_terms: D000367:Age Factors; D000818:Animals; D001681:Biological Assay; D007300:Insect Control; D007304:Insect Viruses / Q000032:analysis*; D007313:Insecta; D007814:Larva; D010944:Plants