Grass Bermuda

Bermuda grasses South and South Central states most promising of ah. warm-season grasses, especially for locahties with acid soils can be harvested several times per year... 

Bahia grasses Elorida and southern coastal plains competes with Bermuda grasses when fertilized effect on overall yield is in dispute... 

Alkali grass, alkali sacaton, bermuda grass, kallar grass, salt grass, weatgrass, wildrye Asparagus, date pabn Moderately tolerant... 

Elevated CO C4 plant compared with C, plant Bermuda grass (Cynodon dactylon) Perennial ryegrass. Wheat (Triiicuni aesti-viim). 40. 41... 

The site in Madera, CA, consisted of a tall fescue/rye mix. The Florida site, located in Keystone Heights, consisted of Bermuda grass. The Pennsylvania site, in Germansville, consisted of bluegrass. Thus, this study was performed on three major grass varieties in three distinctly different temperature zones in the U.S. 

Bermuda grass, Cynodon dactylon Soil amended with molybdenum-contaminated irrigation water... 

It is possible that the resistance of certain plants to this chemical may reduce its effectiveness in the future, as the more susceptible weeds are killed and the resistant ones multiply. In Hawaii, Panicum repens was not killed even at 80 pounds per acre. Digitaria, nut grass, and Bermuda grass show some resistance in Puerto Rico. On one farm treated with CMU at 4 pounds per acre, almost pure stands of D. sanguinalie have appeared in some areas. 

Plant Although no products were identified, the half-life of chlorpyrifos in Bermuda grasses was 2.9 d (Leuck et al., 1975). The concentration and the formulation of application of chlorpyrifos will determine the rate of evaporation from leaf surfaces. Reported foliar half-lives on tomato, orange, and cotton leaves were 15-139, 1.4-96, and 5.5-57 h, respectively (Veierov et al., 1988). 

The half-life in Bermuda grass was 3.1 d (Beck et al., 1966). The disappearance half-lives of di-methoate on bean, tomato, cucumber, and cotton plants were 4.3, 6.0, 3.8, and 3.3 d, respectively (Belal and Gomaa, 1979). 

Plant. The reported half-lives of methomyl on cotton plants, mint plants, and Bermuda grass were 0.4-8.5, 0.8-1.2 and 2.5 d, respectively (Willis and McDowell, 1987). 

In soil and plants, phorate is oxidized to the corresponding sulfone which is then oxidized to the sulfoxide (Fukuto and Metcalf, 1969 Getzin and Shanks, 1970 Metcalf et al., 1957). Both metabolites were identified in spinach 5.5 months after application (Menzer and Dittman, 1968). The half-lives in coastal Bermuda grass and alfalfa were 1.4 (Leuck and Bowman, 1970) and 3.6 days (Dobson et al., 1960), respectively. 

Plant. In plants, phosmet is degraded to nontoxic compounds (Hartley and Kidd, 1987). Dorough et al. (1966) reported the half-life in Bermuda grass was 6.5 d. Half-life values ranged from 1.2 to 6.5 d (Dorough et al, 1966 Leuck and Bowman, 1968 Menzies et al, 1979 Miller et al, 1969). 

Dorough, H.W., Randolph. N.M., and Wimbish, G.H. Residual nature of certain organophosphorus insecticides in grain sor umand coastal Bermuda grass. BuR Environ. Contam. Toxicol, l(l) 46-58, 1966. 

Leuck, D.B., Jones, R.L., and Bowman, M.C. Chlorpyrifos-methyl insecticide residues their analysis and persistence in coastal bermuda grass and forage corn, J. Econ. Entomol, 69 287-290, 1975. 

Cynodon dactylon couch grass Bermuda grass... 

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