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You searched for: Subject California Remove constraint Subject: California Subject term California Remove constraint Subject term: California Subject term Ehrharta Remove constraint Subject term: Ehrharta
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1. Association of the pitch canker pathogen Fusarium circinatum with grass hosts in commercial pine production areas of South Africa

Author:
Cassandra L Swett; Bernice Porter; Gerda Fourie; Emma T Steenkamp; Thomas R Gordon; Michael J Wingfield
Source:
Southern forests 2014 v.76 no.3 pp. 161-166
ISSN:
2070-2639
Subject:
Briza maxima; DNA; Ehrharta; Fusarium circinatum; Pinus; Pseudotsuga menziesii; disease occurrence; endophytes; forests; fungi; grasses; host range; hosts; inoculum; nucleotide sequences; pathogens; plantations; sanitation; virulence; California; South Africa
Abstract:
... The pitch canker pathogen, Fusarium circinatum , has major impacts on production in pine nurseries and plantations in South Africa. Thus far, efforts to reduce local spread have focused on rouging of infected pines and sanitation to eliminate local sources of inoculum. Although the host range of F. circinatum was thought to be limited to pines and Douglas-fir, recent studies in California indicate ...
DOI:
10.2989/20702620.2014.916087

2. Effects of a chaparral-to-grass conversion on soil physical and hydrologic properties after four decades

Author:
Williamson, Tanja N.; Graham, Robert C.; Shouse, Peter J.
Source:
Geoderma 2004 v.123 no.1-2 pp. 99-114
Subject:
Ehrharta calycina; bulk commodities; barley; long term experiments; soil water content; Hordeum vulgare; roots; A horizons; water repellent soils; soil depth; vegetation cover; chaparral; soil water; grasslands; chaparral soils; grassland soils; California
Abstract:
... Forty years after conversion from chaparral to perennial veldt grass in the San Dimas Experimental Forest, we compared land surface and soil properties between areas of the two vegetation types. Our objective was to evaluate the impact of this vegetation conversion on the soil physical properties likely to impact zero-order watershed hydrology. In three watersheds of each vegetation type, surface ...
Handle:
10113/41382
DOI:
10.1016/j.geoderma.2004.01.029

3. Impacts and Best Management Practices for Erect Veldtgrass (Ehrharta erecta)

Author:
Courtenay A. Ray; Joel J. Sherman; Anna L. Godinho; Nikki Hanson; Ingrid M. Parker
Source:
Invasive plant science and management 2018 v.11 no.1 pp. 40-48
ISSN:
1939-747X
Subject:
Clinopodium; Ehrharta; best management practices; community structure; forests; glyphosate; habitats; indigenous species; invasive species; labor; perennials; pesticide application; plants (botany); regrowth; species diversity; understory; vegetation cover; California
Abstract:
... Erect veldtgrass (Ehrharta erecta Lam.) is an invasive grass actively spreading in California that is capable of invading multiple habitats. Our objective is to contribute to a better understanding of the ecology, impacts, and potential for control of E. erecta in order to guide management practices. In a mixed-evergreen forest in Santa Cruz County, we measured impacts of E. erecta on native plant ...