6o6 Bulletin 283. 



before the plants come through; second, spray with Bordeaux, 3-3-50, as soon 

 as the plants begin to break through the soil. Spray repeatedly while the plants 

 are coming through the soil, making a special effort to spray the stems as it is on 

 these that the disease first becomes established in the spring. Spray to keep 

 plant thoroughly covered throughout the season. Spray seed heads thoroughly 

 just after the blossoms fall and again when the berries are two-thirds grown, 

 to prevent "blast" caused by the Altemaria fungus. Destroy diseased tops. 

 Special Crops, Feb. 1907, Vol. 6, No. 54, p. 22. 



__.. J Attacks tops shortly after they come up. Spray early with 



Mildew. Bordeaux. 



_ These are caused by various soil fungi. Favored by wet soggy 



KOOt-rotS. g^.jg_ ■pj.^jj^ ^j^g gQ.j thoroughly. 



A disease caused by a fungus in the sap-tubes of the root. 

 Wilt. Wilt is checked by removing the wilted plants as soon as dis- 



covered. Cornell Bulletin 219. 



GOOSEBERRY. 



The fruit and leaves are covered with a dirty white growth o 

 Powdery fungus. In setting a new plantation, choose a site where the 

 mildew. land is well underdrained and where there is a good circu- 



lation of air. Cut away drooping branches. Keep the ground 

 underneath free from weeds. Spray with potassium sulfid, i oz. to 2 gals. 

 Commence when the buds are breaking and repeat every 7 to 10 days until 

 the fruit is gathered. Powdery mildew is very destructive to the European 

 varieties. Geneva Bulletins 133 and 161. 



GRAPE. 



This is the most destructive fimgous disease of grapes in this 

 Black-rot. state. It is carried over from one season to the next chiefly 

 in old rotted berries or "mummies" that fall to the ground or 

 cling to the vines. Remove all mummies that cling to the arms at trimming time. 

 Plow early, tui^ning under all mummies and diseased leaves. Rake all refuse 

 under the vine into the last furrow and cover with the grape hoe. This cannot 

 be too thoroughly done. The disease is favored by wet weather and weeds or 

 grass in the vineyard. Use surface cultivation and keep down all weeds and 

 grass. Keep the vines well sprouted; if necessary, sprout twice. Spray with 

 Bordeaux mixture, 4-4-50, until middle of July, after that with ammoniacal copper 

 carbonate. The number of sprayings will vary with the season. Make the first 

 application when the third leaf shows. Infections take place with each rain, and 

 occur throughout the growing season. The foliage should be protected by a coating 

 of the spray before every rain. The new growth, especially, should be well sprayed. 

 When the foliage becomes dense the clusters should be sprayed with a "trailer" 

 or hand spraying device. Four applications of Bordeaux mixture should be made. 

 In exceptionally wet seasons two applications of ammoniacal copper carbonate 

 will be necessary. Apply 50 to 60 gallons of spray to the acre. Use 100 to ■ 

 140 lbs. pressure; use a i-i 6 inch hole in the disk of the nozzle. (Cornell Bulle- 



