Author: Ronald EislerPublisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 36
Book Description
Paraquat Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 36
Book Description
Paraquat Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 35
Book Description
Pararaquat (1,1'-dimethyl-4,4-bipyridlnium) and its dichioride salt (1,1'-dimethyl-4,4-bipyridinium dichloride) are broad-spectrum contact plant killers and herbage desiccants that were introduced commercially during the past 25 years. Today, they rank among the most widely used herbicides globally and are frequently used in combination with other herbicides. The recommended paraquat field application rates for terrestrial weed control usually range between 0.28 and 1.12 kg/ha (0.25 and 1.0 lb/acre), and for aquatic weed control the range is 0.1-2.0 mg/L. Target plant species are unable to metabollze paraquat and tend to contain elevated residues; paraquat-resistant strains of terrestrial flora, whose numbers are increasing, require greater concentrations for control and may contain proportionately greater residues. Paraquat from decayed flora is usually adsorbed to soils and sediments. Paraquat in surface soils generally photoecomposes in several weeks, but paraquat in subsurface soils and sediments may remain bound-and biologically unavailable-for many years without significant degradation.
Paraquat Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Pararaquat (1,1'-dimethyl-4,4-bipyridlnium) and its dichioride salt (1,1'-dimethyl-4,4-bipyridinium dichloride) are broad-spectrum contact plant killers and herbage desiccants that were introduced commercially during the past 25 years. Today, they rank among the most widely used herbicides globally and are frequently used in combination with other herbicides. The recommended paraquat field application rates for terrestrial weed control usually range between 0.28 and 1.12 kg/ha (0.25 and 1.0 lb/acre), and for aquatic weed control the range is 0.1-2.0 mg/L. Target plant species are unable to metabollze paraquat and tend to contain elevated residues; paraquat-resistant strains of terrestrial flora, whose numbers are increasing, require greater concentrations for control and may contain proportionately greater residues. Paraquat from decayed flora is usually adsorbed to soils and sediments. Paraquat in surface soils generally photoecomposes in several weeks, but paraquat in subsurface soils and sediments may remain bound-and biologically unavailable-for many years without significant degradation.
Paraquat Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 36
Book Description
Boron Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Animal ecology
Languages : en
Pages : 40
Book Description
Environmental aspects of boron (B) are reviewed, with emphasis on fish and wildlife ecology and toxicology. Subtopics include sources and uses, chemical proerties, mode of action, background concentrations in animals and nonliving materials, lethal and sublethal effects, and recommendations for the protection of biological resources. Current boron criteria recommended for the protection of sensitive species include 0.3 mg B/L in irrigation waters of crops,
Chlordane Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Chlordan
Languages : en
Pages : 60
Book Description
Acrolein Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Aldehydes
Languages : en
Pages : 36
Book Description
Fenvalerate Hazards to Fish, Wildlife, and Invertebrates
Author: Ronald EislerPublisher:
ISBN:
Category : Insecticides
Languages : en
Pages : 52
Book Description
Author: 
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