CURRANT AND GOOSEBERRY DISEASES. 103 



iiig from its head to its tail. On each iside below this there 

 is a row of black spots, with two black strijjes underneath 

 the body. In the autumn the larvye spin leaves together, 

 or drop to the ground and remain just under its surface 

 till the following spring, when they ascend the trees and 

 immediately start to again feed upon the foliage. They 

 are fully fed by June, then enter into the pupal stage and 

 emerge as moths in August. 



Remedies. — As soon as the caterpillars are observed in 

 spring, spray with Formula 10 or 16. Repeat the spray- 

 ing .again in September. In autumn fork Apterite, Kilo- 

 grub, or Vaporite freely into the soil to kill the hibernat- 

 ing larvie. 



White Woolly Currant Scale (Pulvinaria ribesi^e). 

 — These insects infest the shoots of both black and red 

 currants. They exude a cottony or woolly matter, which 

 entirely covers their bodies, so that the insects themselves 

 can scarcely be discerned. The young scales are whitish 

 or orange in colour, and of a flattened, oval shape. Like 

 other scale insects, they are furnished with a proboscis, 

 by means of which they pierce the shoots and suck the 

 sap, and consequently do much harm to the trees. 



Remedies. — Spray in February with Formulae Nos. 1 or 8. 



Other Pests. — The gooseberry is also attacked by the 

 Winter Moth, Gooseben-y Aphis, Grey Slug, and Leaf 

 Weevils; and the roots of currants, by the Woolly Aphis, 

 or American Blight. See index. 



B DISEASES. 



American Gooseberry Mildew (Sphaerotheca 

 moi-s-uvic). — This disease has caused a good deal of sen- 

 sation in the fruit-growing and mycological world during 

 the last year or so, and has been instrumental in inducing 

 the Government to pass a special Act of Parliament to 

 enable the Board of Agriculture to deal with and stamp 

 it out in this country. The disease is of American origin. 



