. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 154. of I>eans(Photograph by H. H. Whetzel) 324 FUNGOUS DISEASES OF PLANTS. Fig. 155. COLLETOTRICHUM FROM BeAN : AN Isolation Culture. (Photograph byGeo. F. Atkinson) a few dark colored setae are developed.^ The conidia measure15-19 X They germinate readily and usually become septate during the conidium is inclosedby a gelatinous envelopewhich when dry glues itto other spores or to anyobject upon which it falls ;when moist, however, thespores are readily sepa-
. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 154. of I>eans(Photograph by H. H. Whetzel) 324 FUNGOUS DISEASES OF PLANTS. Fig. 155. COLLETOTRICHUM FROM BeAN : AN Isolation Culture. (Photograph byGeo. F. Atkinson) a few dark colored setae are developed.^ The conidia measure15-19 X They germinate readily and usually become septate during the conidium is inclosedby a gelatinous envelopewhich when dry glues itto other spores or to anyobject upon which it falls ;when moist, however, thespores are readily sepa-rated and distributed. Control. Very diversemethods of controlling thisimportant disease havebeen suggested. Seed se-lection is important, but itis not sufficient to selectseed which do not appearto be infected, for manyminute infections will be overlooked. It is desirable, therefore,to select healthy seed from healthy pods, preferably from a fieldwhich shows the disease slightly or not at all. Whetzels experi-ments thus far seem toindicate that this lattertype of selection yieldsmost satisfactory with Bor-deaux mixture, 5-5-50formula, is to be advisedwhen the d
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