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. 5L> KiG. 135. —r;A'(('j/();7//w ampi-h>plui_i^iii)i. i, appearance of disease on stem, leaves, and tendrils of vine ; 2, diseased grapes ; 3, section of jjustule of fungus on young grape; 4, conidia. Kigs. I and 2 natural size ; remainder mag. spots scattered over the fruit. When one grape in a bunch is infected, the disease spreads rapidly until every grape is attacked, the spores being washed by rain from one fruit to another. Diseased fruit often becomes contorted and much cracked, exposing the pips, and finally shrinks and becomes mummified, sliil remaining hanging on the vine.
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910