298 
II.—DISEASES OF FIELD AND GARDEN CROPS. 
695. [Anon.] Botany. <Univer. Rec., Univ. of Michigan, vol. 1, Ann Arbor, April, 
1891, pp. 16-17. 
Notices laboratory studies of A. C.Eycleshynier, upon club root ( Plasmodiophorabrassicde) 
qf cruciferous plants, and of W. H. Rush on Peronospora qanaliformis. (See Nos. 885, 
and 377.) (1). G.F.) 
696. [Anon.] Peronospora hyoscyami. <Wiener illust. Gart.-Zeit., 16 Jahrff., Wien, 
Miirz, 1891, p. 130. 
Short notice stating that Peronospora hyoscyami is found in Europe almost exclusively on 
Byoscyamus. but news is received from Australia that it is doing great damage to tobacco. 
Bordeaux mixture is recommended as a preventive measure. (W. T. S.) 
697. [Anon.] Rust in wheat conference. <Agric. Gaz. N. S. Wales, vol. n, Sydney, 
July, 1891, pp. 403-406. 
Gives many recommendations for the immediate attention of the farmer, as for example, 
general experience shows that early sown wheat frequently escapes rust when late does not. 
(M. V.) (See also Agric. Jour. Cape Colony, vol. v, June 2, 1892, pp. 44-45: this Journal, 
pp. 287-289.) 
698. [Anon.] Smut in wheat. <Bull. No. 32, Dept. Agric. & Immigration, Winni¬ 
peg, Feb. 25, 1892, pp. 8. 
Notes two kinds of smut in wheat, loose or black smut and bunt or stinking smut. De¬ 
scribes the two diseases and their reproduction. Under head of “treatment” suggests use 
of sulphate of copper (1 pound to 8 quarts of water for 8 bushels of seed): spread on floor 
and sprinkle with solution and then sift on dry lime to hasten drying. Seed may also be 
treated in a vat. (J. F. J.) J ° 3 
699. Atkinson, G. F. Anew root-rot disease of cotton. ^Insect Life, vol. in, Wash¬ 
ington, Mar., 1891, pp. 262-264. 
Describes a disease due to a species of Nematode worm, Heterodera radicicola. The exter¬ 
nal characters are similar to those caused by the fungus Ozonium. (J. F. J.) 
700. Atkinson, Geo. F. Anthracnose of cotton. <Jour. Mycol., vol. vi, Washington, 
April 30, 1891, pp. 173-178, pi. xvn, xvm. 
Gives detailed description of fungus causing the disease (Colletotrichum gossypii Southw.) 
(See No. 732). (J. F. J.) 
701. Barclay, A. Rust and mildew in India. ^Jour. Bot., vol. xxx, London, Jan. 
1892, pp. 1-8, pi. 1, 2 diagrams. 
Refers to extent of injury from rusts, etc., in all parts of the world. Quotes from Bolley 
as to occurrence in the United States, and notes its being found in India. Australia, Japan, 
etc. Estimates loss to wheat growers in India at nearly 3,000,000 rupees annually. (J. F. J.) 
702. Bolley, H. L. Potato scab, a bacterial disease. <^Proc. Am , Asso. Adv. Sci., vol. 
xxxix, Salem, Mass., July, 1891, pp. 334-335. 
Abstract giving a statement of contents of paper. Concludes the bacterial origin of disease 
to be proved by tinding (1) a specific bacterium in the true scab: (2) raising diseased tubers 
from diseased seed and tubers free from disease from treated seed; (3) raising healthy tubers 
by isolation in same bill where all others became diseased; and (4) producing disease in 
healthy tubers by artificial infection. (See also, Nos. 119,120,121.) (J. F. J.) 
703. C [hurchill, G. W.]. Anthracnose of the bean. <Cult. and Count. Gent., vol. 
lvii, Albany, N. Y., Feb. 4, 1892, p. 88, i col. 
Refers to appearance of beans affected by the disease, and recommends that they be soaked 
before'planting in solution of 3 oz. carbonate of copper dissolved in one quart of ammonia 
and diluted with 4§ gallons of water. The beans should be soaked in the solution for one 
hour. (J. F. J.) 
704. Cobb, N. A. Notes on diseases of plants. <Agric. Gaz. N. S. Wales, vol. n, 
Sydney, May, 1891, pp. 285-287. 
Describes diseased horse-radish plants attacked by Cystopus candidus, and recommends as 
remedies rotation of crops and clean cultivation. Pulverized lime, flowers of sulphur, and 
eau celeste might also be tried. Recommends clean cultivation, destruction of diseased 
plants, and rotation of crops for diseases of maize caused bv Ustilago maydis and Puccinia 
maydis. Under head of diseased lucerne, caused by Sphcerella destrvctiva^ refers to remedies 
previously given. (See No. 705.) Says in regard to “water core” of apple that it is not a 
fungus disease, but is due to lack of air and too much water. (M. Y.) 
705. Cobb, N. A. Pathological notes. <Agric. Gaz. N. S. Wales, vol. ii, Sydney, 
Feb., 1891, pp. 107-108, fig. 4. ^ 
Under subhead “A Disease of Lucerne ” (Sphcerelladestrnctiva B. and B.), speaks of part of 
host attacked, the appearance and amount of the disease. Describes briefly microscopical 
appearance and germination of spores. Recommends good surface drainage and a rapid suc¬ 
cession.ot close mowings. Reference is also made to sphaeriaceous fungi and wheat rust 
spores, which have been scattered by currents of air and are found on red incrusted fence 
rails, together with a species of lichen, which is the true cause of the red color. (M. V.) 
