93 



(c) Leaves turning brown and dying — Four-Lined Leaf-Bug (Poecilocapsus 

 lineatus). 



(d) Measuring worm feeding on leaves of gooseberry and black currant — 

 Currant Span- Worm (Diastictis ribearia). 



(e) White spots on leaves, produced by a pale green sucking insect occurring 

 on the under surface — Currant Leaf Hopper (Empoa albopicta). 



The Fruit — 



(a) Greyish caterpillar boring into young fruit and eating out its contents — 

 Gooseberry Fruit Worm (Zophodia grossulariae). 



(b) Purplish spots surrounding small circular scales — San Jose Scale (Aspi- 

 diotus perniciosus). 



(c) Yellow oval maggots eating the gooseberry — Gooseberry Midge (Ceci- 

 domyia grossulariae). 



(d) Small white grub eating the currant and gooseberry, causing the fruit 

 to turn red and fall — Currant Fly (Epochra Canadensis). 



INSECTS INJURIOUS TO THE GRAPE. 



The Roots— 



(a) Producing little irregular spherical galls on rootlets and larger roots, 

 causing death — Grape Vine Phylloxera (Phylloxera vastatrix), 



(b) Large borer, cutting a tube through the root near the surface — Broad- 

 Necked Prionus (Prionus laticoUis). 



(c) Grub eating the bark of both the large and small roots — Grape Vine 

 Fidia (Fidia viticida). 



The Branches — 



(a) Young shoots suddenly break off or droop in spring; a small hole just 

 above the base of the shoot leads into a burrow — Aphis Twig Borer (Amphicerus 

 bicaudatus). 



(b) Canes show roughened, longitudinal rows of perforations in the bark — 

 Snowy Tree Cricket (OEcanthus niveus). 



