GRAPE DISEASE. 543 
Taylor as estivalis, and the Norton’s Virginia and Delaware as 
I will now indicate the susceptibility of different varieties to 
the disease. 
Vitis vinefera (European).— All European varieties with roots 
badly affected. In many instances decomposed and gone, with 
the vines about dead. No leaf-galls. 
V. riparia (River Bank). Clinton — Leaf-galls extremely 
abundant. Root-lice only moderately so. Taylor—Where leaf- 
galls are few, root-lice abundant ; where galls are abundant fewer 
root-lice. Delaware —A few leaf-galls; lice abundant on roots. 
Othello (hybrid with vinefera) — Both leaf-galls and root-lice, the 
latter tolerably numerous. Louisiana (some say a seedling 
of vinefera, others again believe it cstivalis)—Leaf-galls and 
root-lice, but neither bad. Alvey — Few leaf-galls; plenty of 
root-lice. Cornucopia (hybrid with vinifera)— No leaf-galls ; roots 
badly affected with lice. Wild vine —Numerous leaf-galls and a 
few root-lice ; much in same condition as Clinton. 
V. estivalis (Summer). Cunningham — No leaf-galls, but a 
ew root-lice. Cynthiana—Occasionally a few galls; lice abun- 
dant on roots. The vine has a vigorous growth and the roots are 
large and strong. Herbemont — A few leaf-galls, and scarcely 
any root-lice. Norton’s Virginia — No leaf-galls, but some root- 
ce." 
V. Labrusea (Northern Fox). Isabella, or seedlings of Isa- 
bella—No leaf-galls ; a few root-lice: roots strong and vines flour- 
ishing. Martha—No leaf-galls ; very few root-lice. Hartford— 
No leaf-galls ; very few root-lice. Ives—No leaf-galls ; lice toler- 
ably abundant on roots. North Carolina—No leaf-galls; very 
few root-lice. Maxatawney—No leaf-galls; root-lice quite abun- 
dant. Creveling—A few leaf-galls ; root-lice abundant. Catawba 
—No leaf-galls ; root-lice very numerous, abounding even on the 
larger roots as on the European vines. Gcthe (hybrid with vini- 
Sera)—No leaf-galls but lice on roots very numerous. In t 
vineyards of Messrs. Isidor Bush & Sons, of Bushburg, Mo., this 
Vine was very vigorous and thrifty in 1869 and 1870, but has 
i poorly the present year. Dracut Amber—No leaf-galls ; 
few root-lice. Wilder (hybrid with vinifera—No leaf-gails ; not 
* Etude sur les divers Phylloxera, 
