Experiment Station Record, Volume 92, January-June, 1945 Page: 61
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19451 DISEASES OF PLANTS 61
dark background, and small angle, the sun being low behind the smoke, the maximum
distance of visibility was somewhat less than 24 miles. The range decreased
to varying extents with higher angles, lighter backgrounds, and hazier air. For
a given haze concentration, smoke visibility against uniform backgrounds appeared
to vary directly with the angle of illumination of the sun.
DISEASES OF PLANTS
The Plant Disease Reporter, [August 1, 7, and 15, 1944] (U. S. Dept. Agr.,
Plant Disease Rptr., 28 (1944), Nos. 23, pp. 737-771; 24, pp. 773-807, illus. 5; 25,
pp. 809-822, illus. 2).-In addition to brief seasonal survey notes from the
Emergency Plant Disease Prevention Project relating to such crops as cereals and
grasses, field legumes, potatoes, vegetables, fruits, special crops (e. g., fiber, sugar,
tobacco), and miscellaneous plants, the above issues contain the following signed
notes and articles:
No. 23.-Survey of microflora of wheat seed from Minnesota, North Dakota,
and South Dakota, by I. W. Tervet; flax disease survey in Minnesota and North
Dakota, by H. H. Flor; cereal smut survey in Nebraska, by S. M. Pady; stem
rust of wheat in the Dakotas, with notes on other wheat diseases, by I. W. Tervet;
occurrence of potato late blight and other downy mildews in Massachusetts, by
O. C. Boyd; carrot diseases in Idaho in 1943, by E. C. Blodgett; and the scab
disease of violets; by H. H. Whetzel.
No. 24.-Observations on X-disease and other diseases and injuries on peach
in eastern New York, by D. H. Palmiter; virus and other diseases of stone fruits
in western Colorado, by E. W. Bodine; diseases observed on stone fruits in central
Washington, by L. W. Boyle; diseases and injuries reported on sour cherry in
Wisconsin, by E. E. Honey, D. Moore, and C. Calavan; the dwarf bunt disease
of wheat in Idaho in i943, by E. C. Blodgett; damage by smuts to small grains
in Illinois in 1944, by L. R. Tehon and G. H. Boewe; cereal disease survey in
Nebraska, by S. M. Pady; cereal diseases in Montana, by C. M. Slagg; cereal
diseases in Colorado, by E. W. Bodine; potato diseases in the Red River Valley
and in east-central Minnesota, by I. W. Tervet; and tomato diseases in eastern
Missouri, by T. W. Bretz.
No. 25.-Summary of the tomato disease survey in central California, by H. L.
Barnett; potato late blight survey in Weld County, Colo., by E. W. Bodine; purple
top wilt of potato and the aster yellows virus in the Dakotas, by I. W. Tervet; and
onionidiseases in New York, by J. Niederhauser.
Twenty-third annual report of the Canadian Plant Disease Survey, 1943, I. L.
CONNERS and D. B. O. SAVILE (Canada Dept. Agr., Sci. Serv., Plant Disease
Survey Ann. Rpt., 23 (1943), pp. 122+, illus. 3).-Much the same general plan is
followed as in previous issues (E. S. R., 81, p. 796; 89, p. 681), but in this case
the section on new and noteworthy diseases is presented in French (by R. O.
Lachance) as well as in English.
[Abstracts of bacteriological papers] (Jour. Bact., 48 (1944), No. 1, pp. 122123).-Growth
of Some Animal Pathogens on Wheat Roots (p. 122), and Growth
and Overwintering of Plant Pathogenic Bacteria on Wheat Roots (pp. 122-123),
both by S. Diachun and W. D. Valleau (Ky. Expt. Sta.).
The generic names of bacterial plant pathogens, N. H. WHITE (Jour. Austral.
Inst. Agr. Sci., 10 (1944), No. 2, pp. 78-79).-The generic names used under
four systems of nomenclature (Migula, Smith, Bergey, Dowson) are tabulated and
discussed, and the chief points believed to favor the last are presented. The generic.
naming suggested by W. J. Dowson for bacterial plant pathogens (Corynebacterim,
Bacterium, Pseudomonas, Xanthomonas) has been adopted in Tasmania,
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U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations. Experiment Station Record, Volume 92, January-June, 1945, book, 1947; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5064/m1/74/: accessed July 27, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.