120 Bulletin 188. 



Leaf -spot. Amiiioniacal copper carbonate at infer- 

 Chpysanthe- vals of 10 to 14 days, to keep the foliage protected. 

 mum. Rust. Treat as for leaf -spot / also wet the foliage 

 as little as possible in watering the plants. 



Downy mildew. Bordeaux mixture ev^erj 10 days. 



Cucumber or often enough to keep the foliage well covered, 



and Squash, from the time the plants are very small until frost. 



Striped cucumber beetle. Keep plants thoroughly 

 covered with Bordeaux mixture. See Bulletin ll:-!. 



Leaf-blight. 1. When injury first appears, before 

 Currant. the fruit is harvested, ammoniacal copper carbonate, 



to avoid staining tlie fruit ; 2, after fruit is har- 

 vested, Bordeaux mixture freely applied ; 3, repeat 2 when neces- 

 sary. Worm. 1. AVhen first larvae appear, arsenites ; 2, repeat 1 

 when necessary until fruit is half grown ; 3, use hellebore if any 

 worms remain after fruit is half grown. 



Leaf-spot. As soon as plants are established in the 

 Eg'g'plant. field, Bordeaux mixture ; 2, 3, repeat 1 at intervals 

 of 2 to 3 weeks till first fruits are one-half grown ; 

 ,4, ammoniacal copper carbonate, repeat wdien necessary. 



Mildew. 1. Before buds break, Bordeaux mixture; 

 Gooseberry. 2, when first leaves have expanded, potassium sul- 

 fide ; 3, 4, etc., repeat 2 at intervals of 7 to 10 days, 

 if necessarv throug-hout the sunnner. Currant worm, see under 



I/O ' 



CURRA^'T. 



Anthracnose. 1. Before buds break in spring, sul- 

 Grape. fate of iron and sulfuric acid solution ; 2, repeat 1 

 after 3 or 4 days to cover untreated portions. 

 'Black-rot. (1, as soon as first leaves are fully expanded, Bordeaux 

 mixture); 2, after fruit has set, Bordeaux mixture; 3, repeat 2 at 

 intervals of 2 to 3 weeks until fruit three-fourths grown ; 4, annno- 

 niacal copper carbonate when fruit is nearly grown ; 5, 0, etc., 

 repeat 4 at intervals of 7 to 14 days as required. Downy mildew, 

 Powdery mildew, the first application recommended under Black- 

 pot is of especial importance. See Bulletin 76. Ripe-rot, apply 

 very thoroughly the later applications recommended under Black- 



