156 



Lessons in Fruit Growl. 



mg. 



furrowed galls, which weaken the cane and destroy its 

 functions. Such canes should be cut out and burned dur- 

 ing autumn and early winter. 



22t. The anthracnose {Gloeosporium 

 necator) is a fungous disease tliat at- 

 tacks the young canes of raspberries, 

 blackberries and dewberries during the 

 latter part of June and through July, 

 beginning toward the base of the cane 

 and forming circular or oval, sunken, 

 gray spots, bordered by a distinct pur- 

 ple rim. In severe cases the canes 

 crack and may be wholly destroyed. 

 The leaves may also be more or less at- 

 tacked. 



Anthracnose has not as yet been fully 

 prevented by treatment. Thorough 

 spraying, before the buds swell in the 

 spring, with a solution of one pound 

 of copper sulfate in 15 gallons of water, 

 followed by thorough applications of 

 Bordeaux mixture at intervals of two ^ ^^ ^tt , ^ .^ 



Fig. 45. Work of the 



weeks until midsummer, has been rec- tree cricket, a, row of 

 ommended. In severe attacks it is Punctures in cane: b, 



11 a- i 1 ^^^^ ^^^ °P^°' showing 



well to cut and burn all anected canes eggs; c, magnified eggs. 

 while the leaves are oflF. (^ter Riiey.) 



Some varieties are less subject to anthracnose than oth- 

 ers; plantations on grounds not recently occupied by the 

 bramble fruits often escape attack. 



228. The orange rust or red rust {Cceoma luminatum) 

 attacks blackberries and raspberries. Its presence is indi- 

 cated by small, pale-green wrinkled leaves, followed by a 

 copious production of orange-colored spores on the under 



