Author: Wisconsin. Department of Natural Resources. Bureau of ResearchPublisher:
ISBN:
Category : Natural resources
Languages : en
Pages : 332
Book Description
Report
Author: Wisconsin. Department of Natural Resources. Bureau of ResearchPublisher:
ISBN:
Category : Natural resources
Languages : en
Pages : 332
Book Description
Wisconsin Public Documents
Author: Publisher:
ISBN:
Category : State government publications
Languages : en
Pages : 586
Book Description
Pokeweed (Phytolacca Americana)
Author: Arnold KrochmalPublisher:
ISBN:
Category : Molluscicides
Languages : en
Pages : 12
Book Description
S2Pokeweed, a plant abundant in Appalachia, exhibits some chemical similarities to a related species that has shown molluscicidal properties. Because this suggests that pokeweed, Phytolacca americana L. (P. decandra L.), has potential for controlling fresh-water snails, we have compiled this report of its chemical composition, uses, propagation methods, and other potentially useful species of the genus Phytolacca. The related species, Phytolacca dodencandra L'Her, was found to be the source of a molluscicide, which could pIay an important role in control of bilharziasis, a parasitic disease of humans widespread in Puerto Rico, Africa, and other tropical areas (22). Dead snails and small fish were observed in waterways in areas of Ethiopia where people washed their clothes with this Phytolacca's fruit, which is rich in saponins. Some distance downstream and immediately upstream from the washing places, abundant live snails were present, suggesting that the fruit contained a toxin acting as a molluscicide. This was subsequently confirmed by laboratory tests; tap-water extracts of the dried and powdered fruit had an LC100 (lethal concentration) of 10 parts per million against snails (Biomphalaria, Bulinus: and Lymnea spp.) after 24-hour exposure at 23OC. Furthermore, it was shown that molluscicidal potency was not affected by the presence of soil or vegetable matter, an important factor when the molluscicide is used under natural conditions. S3.
Proceedings, the National Conference on Water Pollution, Sheraton-Park Hotel, Washington, DC, December 12-14, 1960
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 626
Book Description
Method and Meaning in Canadian Environmental History
Author: Alan Andrew MacEachernPublisher:
ISBN: 9780176441166
Category : Canada
Languages : en
Pages : 0
Book Description
The Essential Whole Earth Catalog
Author: Publisher: Main Street Books
ISBN: 9780385236416
Category : Business & Economics
Languages : en
Pages : 420
Book Description
Taking its place beside the instant classic bestseller The Whole Earth Catalog, this new, practical, comprehensive and profusely illustrated guide will prove invaluable to all consumers looking for a quick, efficient route to the very best information. Over 1,000 black-and-white illustrations.
National Horticultural Magazine
Author: Home, Yard, & Garden Pest Guide
Author: The DDT Story
Author: Kenneth MellanbyPublisher: Conran Octopus
ISBN:
Category : Science
Languages : en
Pages : 136
Book Description
American Wildcelery (Vallisneria Americana)
Author: Carl E. KorschgenPublisher:
ISBN:
Category : American wildcelery
Languages : en
Pages : 32
Book Description