From: Associated Press
Published November 22, 2005 12:00 AM

Researchers to Study Horse Manure, Weeds

SAN RAFAEL, Calif. — Researchers here are looking to horse manure to study the spread of invasive weeds. Dominican University has received a $100,000 National Park Service grant to study how to slow the spread of nonnative plants and weeds in state parks, school officials said.


Horse manure might be part of the problem, according to scientists.


Researchers began collecting horse manure samples from trails and pastures this summer. They want to test an assumption that seeds can pass through horses, leading to sprouts of invasive weeds.


"We need to know through scientific research if horses do or do not spread weeds and if they do, what is the impact on the parks," said Sibdas Ghosh, chair of Dominican's Department of Natural Sciences and Mathematics.


Colorado, Nevada and Montana require horse owners to give their animals feed that has been certified as weed free.


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Source: Associated Press


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