Persistent herbicides in compost
Article Abstract:
An overview is presented on the discovery of the herbicides picloram and clopyralid in composting material at Washington State University and the Spokane Regional Compost Facility. The herbicides cause abnormal growth in plants, and although investigations showed they were used according to label directions, the incident suggests additional safeguards are needed to prevent compost contamination.
Publication Name: BioCycle
Subject: Environmental services industry
ISSN: 0276-5055
Year: 2001
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Penn State research uncovers clopyralid in compost
Article Abstract:
The discovery of clopyralid contamination in composting materials at Pennsylvania State University suggest that short-term bioassays are insufficient for accurate detection of the presence of herbicides. The key factor in preventing contamination was determining its source, which was found to be the unintentional inclusion of grass in leaf collection processes.
Publication Name: BioCycle
Subject: Environmental services industry
ISSN: 0276-5055
Year: 2001
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Industries respond to the clopyralid controversy
Article Abstract:
The article examines the composting and recycling industries' efforts to convince Dow AgroSciences to remove its herbicide clopyralid from the market. Clopyralid-tainted yard trimmings can render compost made from them useless, as it destroys plants rather than feed them.
Publication Name: BioCycle
Subject: Environmental services industry
ISSN: 0276-5055
Year: 2001
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