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R. C. Treherne

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Stand Alone

The cabbage-root maggot (Phorbia brassicæ Bouche)
The currant gall-mite (Eriophyes ribis Nalepa)
The imported cabbage-worm (Pieris rapæ Linn.)
The lesser apple-worm (Laspeyresia prunivora Walsh) [and] codling-moth (Cydia pomonella Linn.)
The oyster-shell scale (Lepidosaphes ulmi Linn.)
The peach-twig borer (Anarsia lineatella Zell.)
Soap solutions for spraying
The woolly aphid of the apple (Erisoma lanigerum)
Insects economically important in the lower Fraser valley
Grasshoppers of British Columbia (Classic Reprint)
The cabbage-root maggot (Phorbia brassicæ Bouche)