In hothouses and greenhouses all sorts of plants are liable to attack. Key to Symbols Following Insect Listings * Unsightly: spoiling appearance of plant. † Usually accompanied by much black fungus. ‡ Likely to do much injury to plant. Plants. Insects. Alsophila Colensoi (fern) Lecanium mori. * Apple Mytilaspis pomorum. ‡ " Dactylopius glaucus. * ‡ Apricot Mytilaspis pomorum. ‡ Ash " pomorum. ‡ Asplenium bulbiferum (fern) Chionaspis dubia. * † " lucidum " dubia. * † Astelia Cunninghamii Mytilaspis cordylinidis. * " " " epiphytidis. " " Fiorinia asteliæ. * † " " " stricta. " " Pseudococcus asteliæ. Atherosperma Novæ-Zælandiæ Aspidiotus atherospermæ. " " Mytilaspis pyriformis. * " " Fiorinia asteliæ. * " " Ctenochiton viridis. * † " " Inglisia patella. " " Eriochiton spinosus. Bavardia Lecanium maculatum. * † ‡ Box " hesperidum. * † ‡ Brachyglottis repanda Fiorinia minima. " " Ctenochiton flavus. " " " fuscus. * † Budlæia salicina Aspidiotus budlæiæ. Calceolaria Dactylopius calceolariæ. * † ‡ Camellia Aspidiotus camelliæ. " Lecanium hemisphæricum. * † ‡ " " hesperidum. * † ‡ " " oleæ. * † ‡ " Pulvinaria camellicola. * † ‡ Carpodetus serratus Aspidiotus carpodeti. Cassinia leptophylla (tauhine) Lecanium oleæ. * † ‡ Celmisia Rhizococcus celmisiæ. * Coprosma Aspidiotus nerii. " Mytilaspis pyriformis. * " Chionaspis dubia.