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Low Level Herbicide Use Can Damage Potato Reproduction
January 07, 2009Currently, plant testing in the United States to determine potential ecological risks from chemical pesticides to nontarget plants requires two tests, both of which use immature plants. Protection of the plant development and reproduction are not considered, unlike tests required for the protection of animals. Past research conducted by the USEPA and others have shown that plant development/reproduction is not adequately protected with the current test protocols.
The stage of plant development when exposed to a pesticide has an important impact on what plant organs are injured. Vegetation may or may not display symptoms of injury when reproductive organs are severely damaged. Yield and quality reduction can have significant economic and ecological effects. Therefore, field trials were conducted to determine if potato vegetative growth and tuber yield and quality were affected by herbicides at below recommended field rates.
Potato plants were exposed to one of seven different herbicides at various concentrations below normal field application rates. Results from this study were published in the November-December issue of the Journal of Environmental Quality. They demonstrated that potato tuber yield and quality can be affected by herbicide application rates below those causing a reduction in vegetative growth or injury. Potato tuber formation may be a sensitive indicator of developmental/reproductive responses of plants to chemical pesticides.
Research is continuing at the Western Ecology Division of the USEPA, Corvallis, OR in support of pesticide registration requirements for the protection of nontarget plants from pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).
The Soil Science Society of America (SSSA)
Research is continuing at the Western Ecology Division of the USEPA, Corvallis, OR in support of pesticide registration requirements for the protection of nontarget plants from pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).
The Soil Science Society of America (SSSA)
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MSA Safety Works 817662 Paint and Pesticide Respirator by MSA Safety Works Built-in carbon filter removes nuisance-level odors; Foam inner seal improves comfort; Patented nosebridge improves comfort and fit; Electrostatic filter media traps dust while maintaining low breathing resistance; Latex-free and hypoallergenic for users with sensitive skin; NIOSH approved (N95 Class) |
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Standard Pesticide User's Guide, The (7th Edition) by Bert L. Bohmont (Author) Covers all aspects of pesticide principles and use, including topics such as: environmental considerations; insects; plant disease agents; weeds; integrated pest management; laws; liability; recordkeeping; labels; safety; formulations; application equipment; transportation; storage; decontamination; and disposal. Using a non-technical presentation, it helps readers gain an understanding of why pesticides are used, how to apply them safely and how to do this within the letter of the law. Supplies the necessary information for pesticide applicators to use pesticides in a responsible manner. Offer readers quick and easy access to reference material such as the United States and Canadian Pesticide Control Offices, restricted use pesticides, pesticide information... |
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