Journal of Agricultural Research . A HoBrirDBaifirr Journal of Agricultural Research Washington, D. C. The Red Stain in ttie Wood of Boxelder Plate 2. Journal of Agricultural Research Washington, D. C. H^ % PLATE 2. Transverse section through the trunk of a boxelder showing the heartwood discoloredby the red stain caused by Fusarium negundi Sherb. PLATE 3. Transverse section of boxelder cut down in November, 1922, showing theheartrot of Fames applanatus in the central heartwood, surrounding this is a darkband of red stain with five projecting areas all halting abruptly on the same annualring.
Journal of Agricultural Research . A HoBrirDBaifirr Journal of Agricultural Research Washington, D. C. The Red Stain in ttie Wood of Boxelder Plate 2. Journal of Agricultural Research Washington, D. C. H^ % PLATE 2. Transverse section through the trunk of a boxelder showing the heartwood discoloredby the red stain caused by Fusarium negundi Sherb. PLATE 3. Transverse section of boxelder cut down in November, 1922, showing theheartrot of Fames applanatus in the central heartwood, surrounding this is a darkband of red stain with five projecting areas all halting abruptly on the same annualring. The sapwood shows scattered individual infections by the red stain funguswhich entered through the injuries produced by sapsuckers. At the division linebetween the two annual rings last formed are found eight of these infections. Oneof these injuries had not been healed and the direct relation is shown betweenthe red stain area and the cavity in the bark and cambium produced by the of the bird pecks are shown in longitudinal section of the wood. The Red Stain in the Wood of Boxelder Plate 3
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Keywords: ., bookauthorassociationoflandgran, bookcentury1900, bookdecade1910
