Abstract/Contents: | "Dimension turf herbicide is a new product being developed by Monsanto Company for use in established turf to selectively control annual grasses and broadleaved weeds. The full registration for Dimension is cureently pending approval by the Environmental Protection Agency (EPA). Dimension turf herbicide has been tested in different climatic zones of California on golf courses from San Diego to Monterey and from Palm Springs to Sacramento. Results indicate that Dimension may be applied pre-emergent to annual grasses such as smooth and hairy crabgrass, annual bluegrass, kikuyugrass, smutgrass, goosegrass and broadleaf weeds such as spotted spurge, oxalis, burclover, white clover, black medic, and chickweed. Dimension has shown excellent safety to both warm and cool-season turfgrasses. Research data indicated that when applications of Dimension were made in spring and early summer, then successful re-seeding, overseeding, or sodding into these treated areas may occur three months after applicaiton. The use of Dimension on newly seeded, sprigged, or sodded turf is not recommended until the turf has become well-established and developed a secondary root system. Studies with directed applications of Dimension turf herbicide have not shown any injury on a wide range of established ornamentals, however, over-the-top applications have resulted in injury to some species. Laboratory and field testing have shown that Dimension mixes well with other herbicides, insecticides, fungicides, and liquid fertilizers. In summary, Dimension 1EC turf herbicide, at low application rates, offers preemergence control of crabgrass, annual bluegrass, spotted spurge, oxalis and chickweed, with safety on all major turfgrasses grown in California. |