Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . carbonate of copper,especially the former. Sj^ray first before the blossomsopen; then as soon as the fruit is well formed sprayagain, and repeat the application twice later at intervalsof two weeks. If the Bordeaux mixture is used, Parisgreen may be added for the earlier sprayings, to destroythe curculio at the same time. Literature.—One of the first general accounts ofthis disease was published in 1885, by Professor J. , in the Fourth Report of the
Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . carbonate of copper,especially the former. Sj^ray first before the blossomsopen; then as soon as the fruit is well formed sprayagain, and repeat the application twice later at intervalsof two weeks. If the Bordeaux mixture is used, Parisgreen may be added for the earlier sprayings, to destroythe curculio at the same time. Literature.—One of the first general accounts ofthis disease was published in 1885, by Professor J. , in the Fourth Report of the Xew York Agri-cultnral Experiment Station. This was followed, in1888, by an extended article, illustrated by two excellentplates, by Mr. B. T. Galloway, in the Report of theUnited States Department of Agriculture for that j^ear(p. 319-352); and since then Dr. Erwin F. Smith hascontributed to the Journal of Mycology (v. V, p. 123 ;V. VII, p. 3G) some valuable additional J. E. Humphrey has also published a popularaccount of the disease in the Eighth Eeport of the Massa-chusetts Agricultural Experiment \ 1. JMM IOCKETS. 60 FUNGI AXD FUNGICIDES Plum Pockets Taphrina pruni Although this remarkable disease has been knownfor many years (having, indeed, been described as earlyas 1593), its real cause has been recognized only compar-atively recently. It was formerly supposed to resultfrom the attacks of insects, or from improper fertiliza-tion of the ovule; but it is now known to be due to thegrowth of a fungus. Mr. Galloway states that ^the pockets (Plate \1)make their appearance soon after the flowers have fallen,attain full size and drop from the trees toward the mid-dle or last of June. At first they are more or less glob-ular in shape, but as they grow older they becomeoblong, or oval, and frequently more or less vary in size, but, as a rule, are from one to twoinches in length, and from one-half to one inch in diam-eter. When
Size: 955px × 2616px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
