Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . dby several transverse jiartitions. They germinate whenon moist alfalfa leaves, bv sendins: out a sleiider thread,which penetrates the skin of the leaf and starts thefunsfus anew. Treatment.—Upon this point Professor Chestersays: In case it should be necessary seriously to com-bat this difficulty, the writer would advise that all dis-eased patches or areas be cut and burned, or compostedwith an excess of lime. Literature.—The only article of importance con-
Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . dby several transverse jiartitions. They germinate whenon moist alfalfa leaves, bv sendins: out a sleiider thread,which penetrates the skin of the leaf and starts thefunsfus anew. Treatment.—Upon this point Professor Chestersays: In case it should be necessary seriously to com-bat this difficulty, the writer would advise that all dis-eased patches or areas be cut and burned, or compostedwith an excess of lime. Literature.—The only article of importance con-cerniug this disease yet published is the one above re-ferred to, which may be found iu the Second Report ofthe Delaware Experiment Station (1889, pp. 95-97).Another disease of alfalfa is briefly described in thesame connection, and another in the report for 1890. FUNGI AFFECTING CLOVER The Clover Rust Uromyces trifolii Although this disease has been known in Europe asa clover enemy for a long time, it has only recently beennoticed in this country. It is now widely distributed,however, occurring from Connecticut, in the east, to. FIG. 89. a, White clover leaf showing secidiuni stage; b, red clover leal showing uredo stages. Colorado, in the west. It is occasionallv so abundantas to injure seriously fields of red clover. Leaves affectedby the disease are more or less thickly covered withAvell-rlefined, oblong, brown powdery spots, as shown inFig. 89. 219 220 rUXGI AND FUXGICIDES Like various other members of the family of ruststo which this fungus belongs, it exists in three distinct
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
