55 
261. Fletcher, James—C ontinued. 
Report of Entomologist, p. 87. Notes occurrence near Port Hope, Ontario, of a 
peculiar cracking of the bark of the grape canes, known among Germans as 
“Krebs” or “Scliorf,” and attributed to freezing of the canes. 
262. Galloway, B. T. Report of the Chief of the Division of Vegetable Pathology, in Ann. 
Report for 1890, U. S. Dept, of Agriculture (issued 1891). Treatment of black 
rot of the grape (see No. 196): Gives results of experiments in Virginia, as 
described in Journal, vol. vi, No. 3, pp. 89-95. Treatment of pear, cherry, and 
strawberry leaf-blight as affecting nursery stock: Reports successful pre¬ 
vention of pear leaf-blight by applications of Bordeaux mixture. Finds 
cherry leaf-blight prevented by either ammoniacal solution of copper car¬ 
bonate or Bordeaux mixture. Reports successful use of ammoniacal solution 
in preventing strawberry leaf-blight, giving figures of cost of treatment. 
Treatment of i>ear leaf-blight and scab in the orchard: Gives results of 
comparative test of Bordeaux mixture, ammoniacal solution of copper car¬ 
bonate, copper acetate (verdigris), and copper carbonate in suspension, with 
expense of various treatments. Places fungicides as above in order of effect* 
iveness, and finds three early sprayings equally as effective as six continued 
through the season. Experiments in the treatment of apple scab: Concludes 
that scab can not be w^holly prevented in an unfavorable season by use of 
ammoniacal solution, Bean’s sulphur powder, Mixture No. 5 (equal parts of 
ammouiated copper sulphate and carbonate of soda), or copper carbonate 
suspended in water. Finds Mixture No. 5 most effective; early treatment 
before the opening of the flowers extremely important, and midsummer spray¬ 
ings of doubtful value. Raspberry leaf-blight: Discloses the fact that rasp¬ 
berry foliage is too delicate to withstand action of Bordeaux mixture or 
Mixture No. 5; that blackberry foliage, while more resistant than raspberry, 
is more susceptible than apple. Experiments in the treatment of potato rot: 
Reports increase in yield of treated over untreated of 25 to 50 per cent. Some 
practical results of the treatment of plant diseases: Gives figures of expense 
of treatments made by practical growers. Fungicides and spraying appa¬ 
ratus : Discusses various new fungicides and apparatus. Peach yellows 
investigation: Gives brief summary of work of Dr. E. F. Smith upon the 
subject. The California vine disease: Reviews in brief the work of N. B. 
Pierce, both in the United States and Europe, upon this disease, announcing 
no definite results. Hollyhock anthracnose [ColleiotricJium malvarum , (A. 
Br., & Casp.) South worth], with colored plate: Gives short statement of the 
disease affecting greenhouse hollyhocks. Anthracnose of cotton ( Colletotri - 
chum gossypii , South), with colored plate : Gives brief account of the disease. 
Ripe rot of grapes and apples (Glceosporium fructigenum, Berk.), with colored 
plate: Short account of the disease described at length in the Journal, vol. 
vi, No. 4, pp. 164-173. 
263. Goff, E. S. Bordeaux mixture as a preventive of potato rot. Rural New Yorker, 
June 13, 1891, vol. l, No. 2159, p. 453. Gives abstract of report to be pub¬ 
lished by the Division of Vegetable Pathology upon successful use of Bor¬ 
deaux as preventive of potato blight. The disease is thought to be different 
from that caused by Phytophthora infestans , DBy, and to resemble the bacte¬ 
rial disease mentioned by Burrill (see No. 188). 
264. Halsted, B. D. Black rot of the sweet potato (with fig.). Pop. Gardening, April, 
1890, vol. 6, No. 7, p. 128. Gives popular description of Ceratocystis fimbriata. 
Ell. & Hals. 
265. -. The hydrangea blight. Garden and Forest, New York, vol. iv, No. 164, 
April 15, 1891, p. 177 (£ column). Notes serious abundance of Phyllosticta 
hydrangea; , E. & E., in New Jersoy. Recommends ammoniacal solution of 
copper carbonate as preventive. 
