. Circular. Agriculture; Agriculture -- United States. PRESENT STATUS OF THE WHITE-PINE BLISTER RUST. l7 In 1911 the writer secured the only cUrect e\ddence that the fungus may be carried on dormant Ribes stock that has yet been pubhshed. This was the discovery of a single leaf upon an artificially inoculated Ribes bush which had the telial stage upon the petiole (fig. 6) and even on the slight stipules at its base. The statement ^ concerning it read: The finding of the telento stage of the fungus affecting the stipule and bracts of a Ribes leaf in the greenhouse is believed to practically pro
. Circular. Agriculture; Agriculture -- United States. PRESENT STATUS OF THE WHITE-PINE BLISTER RUST. l7 In 1911 the writer secured the only cUrect e\ddence that the fungus may be carried on dormant Ribes stock that has yet been pubhshed. This was the discovery of a single leaf upon an artificially inoculated Ribes bush which had the telial stage upon the petiole (fig. 6) and even on the slight stipules at its base. The statement ^ concerning it read: The finding of the telento stage of the fungus affecting the stipule and bracts of a Ribes leaf in the greenhouse is believed to practically prove that the fungus may sometimes attack the bud scales of dormant bushes and cuttings; this very probably explains the anomalous appearance of this fungus in this country upon Ribes at Geneva, N. Y., and possibly in Kansas. It was intended to sav: "The findmg of the teleuto stage of the fungus affecting the petiole and stipules * * * ^" ]^â ^^^^ ]^y some mistake it read as above quoted. Wliile this is not complete proof that the fungus may occasionally attack the bud tissues by way of the petiole, such proof has been sought by the writer and is still Fig. ^Rihes petiole showing telial stage of Cm- lyQi^^ SOUght, not Only ill illdc- nartium ribicola progressing downward from the ^ . , , . leaf blade. (Drawn in dry condition with a pendent experiments DUt alsO 111 camera lucida.) experiments in cooperation with the New York State Agricultural Experiment Station. LEGISLATION. The various States of this country have as varied laws against plant diseases as could well be devised. They range in efficiency from zero to nearly perfect. A number have laws authorizing the proper State official to declare and enforce quarantine against especially dangerous plant diseases. This power has been used in but few cases, however. In 1912 the nursery inspector of Massachusetts prohibited any fur- ther importation of any 5-leaved pine stock from Europe into that State because of the
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