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G80-488 Spring And Summer Black Stem Diseases Of Alfalfa (Revised June 1992), John E. Watkins, Fred A. Gray
G80-488 Spring And Summer Black Stem Diseases Of Alfalfa (Revised June 1992), John E. Watkins, Fred A. Gray
University of Nebraska-Lincoln Extension: Historical Materials
Spring and summer black stem of alfalfa, their causes, symptoms, and control are discussed.
Of the two black stem diseases found in the central and northern Great Plains, spring black stem predominates summer black stem. Both are damaging when weather conditions favor their development. Although their symptoms differ, each causes spotting and darkening of stems and spotting of leaves.
G80-517 Kentucky Bluegrass Lawn Calendar (Revised October 1994), Roch E. Gaussoin, Terrance P. Riordan, Garald L. Horse, John E. Watkins, Frederick P. Baxendale
G80-517 Kentucky Bluegrass Lawn Calendar (Revised October 1994), Roch E. Gaussoin, Terrance P. Riordan, Garald L. Horse, John E. Watkins, Frederick P. Baxendale
University of Nebraska-Lincoln Extension: Historical Materials
This publication calendar contains information on mowing, fertilizing, waternig, herbicides, insect control, disease control, thatch removal, aerification, and overseeding of a Kentucky Bluegrass Lawn.