172 Bulletin 245. 



applied; 3. Repeat 2 when necessary. Worm. i. When first larvae appear, 

 arsenicals; 2. Repeat i 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 field, Bor- 

 Eggplant. deaux mixture; 2, 3. Repeat i at intervals of 2 to 3 weeks 

 till first fruits are one-half grown; 4. Ammoniacal copper 

 carbonate, repeat when necessary. 



Alternaria Blight, i. Spray surface of beds thoroughly with 



Ginseng. copper sulfate solution early before plants start. 2. Spray 



with Bordeaux as soon as plants begin to come through soil. 



Add sticker, spray repeatedly while plants are coming up and expanding so as to 



keep all parts covered. Keep plants covered through season. Spray seed head 



thoroughly just after blossoms fall. See Bulletin 219. 



Mildew. I. Before buds break, Bordeaux mixture; 2. When 

 Gooseberry, first leaves have expanded, potassium sulfide; 3, 4, etc., repeat 

 2 at intervals of 7 to 10 days, if necessary throughout the summer. 

 Currant-worm. See under currant. 



Anthracnose. i. Before buds break in spring, sulfate of copper; 

 Grape. 2 . Bordeaux mixture after 3 or 4 days to cover untreated portions. 



Pick and destroy diseased bunches. Burn diseased wood. 

 Black-rot. Clean trellises of diseased bunches and canes, i. 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 is three-fourths grown; 4. Am- 

 moniacal copper carbonate when fruit is nearly grown; 5,6, etc., repeat 4 at intervals 

 of 7 to 14 days as required. Downy mildew, powdery mildew. The first application 

 recommended under Black-rot is of especial importance. See Bulletin 76. Ripe- 

 rot. Apply very thoroughly the later applications recommended under Black-rot. 

 Steely-beetle, i. As buds are swelling, arsenites; 2. After 10 to 14 days, repeat 

 I. See Bulletin 157. Root- worm. Thorough cultivation in June to kill pupa^. 

 Arsenate of lead 3 lbs. to 50 gals, water, latter part of June, to kill beetles. See 

 Bulletins 208, 224, 235. Leaf-hopper, Whale-oil soap, i lb. in 10 gals, water 

 applied very thoroughly to undersides of leaves about July 1st. See Bulletin 215. 

 Fungous diseases. i. When first leaves appear, Bordeaux 

 Nursery Stock, mixture; 2, 3, etc., repeat 1 at intervals of 10 to 14 days to 

 keep foliage well covered. Plant-lice. Kerosene emulsion or 

 whale oil soap i lb. to 5 gals, water, apply thoroughly. Dip tips. San Jose scale. 

 Kerosene emulsion in summer. Burn, or fumigate with cyanide of potassium. 

 Dip tops in cool lime-sulphur. See under apple. 



Blight. Weak Bordec^ux mixture (two-thirds strength) applied 



Onion. every 10 days from time plants are well up till harvest. Add 



sticker to Bordeaux. [Cornell Bulletin 218]. Thrips, Kerosene 



emulsion or whale oil soap, i lb. in 5 gals, water. Maggot. See root-maggot under 



CABBAGE. 



Brown-rot. i. Before buds swell, copper sulfate solution; (2. 

 Peach, Before flowers open, Bordeaux mixture); 3. When fruit has 



Nectarine, set, repeat 2; 4. Repeat after 10 to 14 days; 5. When fruit is 

 Apricot. nearly grown, ammoniacal copper carbonate; 6, 7, etc., repeat 



5 at intervals of 5 to 7 days if necessary. Pick off and destroy 

 diseased fruit in autumn. Black spot spray with dilute Bordeaux mixture. Curl- 

 leaf. I. Before buds swell (March or April) use strong Bordeaux mixture or copper 

 sulfate solution. Lime sulfur will also control it. San Jose scale, see apple. Cur- 

 culio. See plum. 



