Title: Chemical control of woody plants in California
Identifier: chemicalcontrolo0755leon (find matches)
Year: 1956 (1950s)
Authors: Leonard, O. A. (Oliver Andrew), 1911-1975; Harvey, W. A. (William Alfred), 1914-1989
Subjects: Woody plants; Herbicides
Publisher: Berkeley, Cal. : California Agricultural Experiment Station
Contributing Library: University of California, Davis Libraries
Digitizing Sponsor: University of California, Davis Libraries

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old chamise sprouts was obtained fol- lowing an August burn on an area treated with 2 pounds of 2,4-D per acre; the kill of chamise sprouts on the un- burned sprayed area was only 33 per cent. In this case, the spraying made the burn possible, since the fire largely re- stricted itself to the sprayed area. The burning must be done the same year as the spraying to be effective in improv- ing the kill of chamise sprouts. The spray mixture described above (2 pounds 2,4-D in 2 gallons Diesel fuel and water to make 40 gallons spray per acre) may be very useful in converting a chamise cover to perennial grass (See Table 1, page 17). The chamise and other brush was crushed with a bulldozer in the summer of 1950, burned early in October, and seeded at once by airplane to hardinggrass, smilo, tall fescue, rose clover, and a few minor species. An ex- cellent stand developed. The following factors added to the success of the seed- ing. (1) The brush was crushed the same year and before the burning took place, so that weedy grasses had not de- veloped. (2) Crushing made a thorough burn possible. (3) Seeding occurred im- mediately after the burn and shortly be- fore rains were expected. This allowed the seed to be partly covered by the ash and protected from birds. Crushing made the area accessible so that it could be sprayed with a boom. Sprays applied in the spring of 1951 and 1952 were highly effective in killing not only chamise sprouts but also yerba Top: Smilo established on a chamise-covered area by spraying, crushing the brush, and seeding. (George Allen ranch, Sutter Creek, Calif.) Center: Two-year-old chamise sprouts killed by spraying with helicopter. The area appears to have been satisfactorily converted from brush to grass. (L. J. and George Gamble ranch, Knoxville, Calif.) Bottom: Chamise burned and seeded to perennial grasses. Plot in background sprayed the second year after burning; area in foreground not treated. (Hollister and Warren ranch, Rescue, Calif.)
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