Testing fluorine compounds for chemical mowing of turfgrass
AuthorsJohn H. Madison
James M. Johnson
William B. Davis
Roy M. Sachs
Authors AffiliationsJohn H. Madison, Associate Professors, Department of Environmental Horticulture, University of California, Davis; James M. Johnson is Technician, Department of Environmental Horticulture, University of California, Davis; Wm. B. Davis is Extension Specialist in Environmental Horticulture; Roy M. Sachs, Department of Environmental Horticulture, University of California, Davis.
Hilgardia 23(8):8-10. DOI:10.3733/ca.v023n08p8. August 1969.
On the basis of present evidence, morphactins, used at low rates, appear to have some regulatory effects on turfgrass growth—stimulating seed yield and flowering, and affecting tillering and degree of culm elongation. However, reductions in leaf growth from morphactins, do not indicate specific growth regulation but appear to be caused by phytotoxicity. Such poisoning generally leads to lowered vigor and reduced ability to recover from wear, insect, and disease attacks, and may increase susceptibility to disease and insects; therefore, the continuing recommendation is for replacement of hybrid bermudagrasses when used for purposes to which they are not suited. When a brown color is not objectionable, a considerable reduction of thatch and clippings can be obtained by withholding irrigation and fertilizer.
Also in this issue:Agricultural field stations —laboratories of the university
Extension laboratory, U.C., Davis
Influence of weather on the harvesting of high elevation christmas trees
Resistance to sun blotch virus in seed source trees of Duke avocado
Preplant soil fumigation increases head weights in California lettuce
Mechanical aids to sweet potato harvest
Interaction of environment and genotype in the expression of a virescent gene, pale-yellow-1, of maize