UC Weed Science

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Monitoring for New Problematic Weed Species in Rice

May 4th, 2018
From Brian German at AgNet West :: April 17, 2018 California rice growers will need to be on the lookout for two new problematic weed species this year. One of the species is called rough barnyardgrass (Echinochloa muricata) and the other is known as coast cockspur grass (Echinochloa walteri).
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Figure 1. Water hyacinth mats floating in the Sacramento-San Joaquin Delta.
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Tracking water hyacinth with GPS

April 30th, 2018
Water hyacinth (Eichhornia crassipes (Mart.) Solms)) is a perennial free-floating aquatic plant species native to the Amazon region of South America. It has become invasive around the world, including the Sacramento-San Joaquin Delta in central California.
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