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Aquatic systems herbicides

Uses selective systemic herbicide to control perennial and annual grasses on noncropland, fruits, vegetables, and some aquatic weeds. [Pg.334]

Uses 2,4-D is a colorless powder with a mild phenylic odor. There are many derivatives of 2,4-D, including esters, amines, and salts. As a systemic herbicide, it is used to control many types of broadleaf weeds. It is used in cultivated agriculture, in pasture and rangeland applications, forest management, home, garden, and to control aquatic vegetation. It may be found in emulsion form, in aqueous solutions (salts), and as a dry compound. [Pg.166]

Diquat and paraquat applied to aquatic systems were eflFective in controlling pond flora and did not directly aflFect pond fauna (45, 67). The absence of herbicidal activity to aquatic fauna was attributed to inactivation by adsorption on bottom muds and the subsequent lack of biological availability (45). The phytotoxic eflFects to pond flora probably occurred through absorption into the plant tissues of herbicides adsorbed on leaf surfaces. Other details concerning the behavior of diquat and... [Pg.67]

A major sink for compounds released into the environment is the soil or sediment in aquatic systems. Some compounds (e.g., a herbicide) may be applied directly to the soil, other compounds applied to plants may reach the soil as leaves fall. Compounds in the atmosphere may be deposited in rain-out or as particulates settle. Waste material will ultimately be consigned to a landfill. Consequently, the processes by which compounds distribute into and are bound in soil or sediment will influence their environmental distribution. [Pg.75]

Chlorinated phenoxy acids are used extensively as herbicides in agriculmre, as algaecides in paints, and as coating agents. These are the main sources of their introduction in to the aquatic system. Their removal efficiency using... [Pg.1985]

Uses Selective, systemic herbicide used to control perennial and annital grasses on noncrop land. Suits, vegetables and some aquatic weeds. [Pg.435]

Amitrole (Aminotriazole) is a systemic herbicide used to control nonselective grasses, broadleaf weeds, cattails, poison ivy, and certain aquatic weeds. One case of allergic contact dermatitis to aminotriazole has been reported in a contract weed control operator [92]. [Pg.789]

Dichloro phenoxy acetic acid (2,4-D) 0.1 (class), 0.5 (total) Severe eye and dermal irritation, neurotoxicity, and hepatic dysfunction The use as a systemic herbicide for control of broad-leaved weeds, including aquatic weeds 0.1 pg/1 by gas-liquid chromatography with electrolytic conductivity detection... [Pg.170]

The concept of fibrous polymer formulations was extended to the delivery of aquatic herbicides (56). Several herbicides including Diquat, Fluridone, and Endothal were spun into biodegradable poly-caprolactone. Monolithic fibers and a modified monolithic system were produced with levels of herbicide from 5 to 60% by weight. Laboratory and field trials showed efficacious delivery of the active agent. Fibers provided both targeted localized delivery and controlled release of the herbicide to the aquatic weed. [Pg.12]

B. M., Price, M. W., and Stoner, W. C., Jr., Polymeric-pellet delivery systems for controlled release of aquatic herbicides, Toronto Controlled Release Society, Proc. 14th Int. Symp. Control. Rel. Bioact. Materials, 291-292, 1987. [Pg.117]

Bartley, T.R. 1967. Progress report on evaluation of copper for aquatic weed control and herbicide residues on irrigation systems. U.S. Bur. Reclam. Rep. No. WC-32. 58 pp. [Pg.216]

Dicamba 1350-2250 Systemic acid herbicide slight Aquatic... [Pg.57]

The impact of pesticides on water quality in organic systems has rarely been studied (Stock-dale et al. 2001). Again, however, most of the water contamination comes from herbicides used in conventional farming. There is some debate about the disposal of sheep dip and the relative risks of pyrethroids versus organophosphates. Organic farmers only use the former and they are potentially more damaging to aquatic habitats. [Pg.274]


See other pages where Aquatic systems herbicides is mentioned: [Pg.253]    [Pg.48]    [Pg.50]    [Pg.382]    [Pg.748]    [Pg.782]    [Pg.387]    [Pg.93]    [Pg.159]    [Pg.748]    [Pg.782]    [Pg.253]    [Pg.524]    [Pg.525]    [Pg.117]    [Pg.30]    [Pg.183]    [Pg.205]    [Pg.307]    [Pg.507]    [Pg.3]    [Pg.51]    [Pg.108]    [Pg.122]    [Pg.270]    [Pg.280]    [Pg.12]    [Pg.351]    [Pg.37]    [Pg.747]    [Pg.747]    [Pg.198]    [Pg.297]    [Pg.24]    [Pg.37]    [Pg.747]    [Pg.747]   


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Aquatic systems

Herbicide systems

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