Search Results - "Widmer, T. L."

Effects of temperature on germination of sporangia, infection and protein secretion by Phytophthora kernoviae by Shelley, B. A., Luster, D. G., Garrett, W. M., McMahon, M. B., Widmer, T. L.

“…Phytophthora kernoviae is a pathogen on a wide range of plants, but little is known of optimal infection conditions. Rhododendron ponticum leaves were…”
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Soil organic matter and management of plant-parasitic nematodes by Widmer, T L, Mitkowski, N A, Abawi, G S

“…Organic matter and its replenishment has become a major component of soil health management programs. Many of the soil's physical, chemical, and biological…”
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Histological comparison of fibrous root infection of disease-tolerant and susceptible citrus hosts by Phytophthora nicotianae and P. palmivora by WIDMER, T. L, GRAHAM, J. H, MITCHELL, D. J

“…ABSTRACT Phytophthora nicotianae and P. palmivora infect and cause rot of fibrous roots of susceptible and tolerant citrus rootstocks in Florida orchards. The…”
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Relationship Between Levels of Cyanide in Sudangrass Hybrids Incorporated into Soil and Suppression of Meloidogyne hapla by Widmer, T L, Abawi, G S

“…Sudangrass cv. Trudan 8 has been demonstrated to suppress infection of vegetables by Meloidogyne hapla (Mh). Hydrogen cyanide, released from the degradation of…”
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Impact of soil health management practices on soilborne pathogens, nematodes and root diseases of vegetable crops by Abawi, G.S, Widmer, T.L

“…Various cultural practices, including the use of cover and rotational crops, composts, tillage systems, and others have been promoted as management options for…”
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First report of Fusarium arthrosporioides on medusahead (Taeniatherum caput‐medusae) and preliminary tests for host‐specificity by Siegwart, M., Bon, M. C., Widmer, T. L., Crespy, N., Sforza, R.

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The effect of temperature on Phytophthora kernoviae infection of Rhododendron ponticum by Widmer, T L

“…Phytophthora kernoviae is a pathogen known only to exist in the U.K. and New Zealand. In the U.K., it is known to infect Rhododendron ponticum and other woody…”
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Composted municipal solid wastes promote growth of young citrus trees infested with Phytophthora nicotianae by Widmer, T.L, Graham, J.H, Mitchell, D.J

“…The potential for compostcd municipal solid waste (CMW) to suppress Phytophthora root rot and promote growth of Sunburst tangerine trees on Sun Chu Sha…”
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Temperature effects on the germination of sporangia and zoospores and colony establishment of Phytophthora kernoviae by Shelley, B, Widmer, T L, Luster, D G, Smith, O P, Falkenstein, K

“…Phytophthora kernoviae, first reported in 2003 has the ability to infect and cause foliar necrosis on Rhododendron ponticum and other woody ornamentals…”
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Comparing New Zealand and United Kingdom isolates of Phytophthora ketnoviae by Widmer, T L

“…Phytophthora kernoviae was discovered in the United Kingdom in 2003 and identified as a new species in 2005. Recent DNA sequence studies identified two unknown…”
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Root susceptibility and inoculum production from roots of eastern oak species to Phytophthora ramorum by Widmer, T L, Shishkoff, N, Dodge, S

“…Little is known about root susceptibility of eastern tree species to Phytophthora ramorum. In this study, we examined root susceptibility and inoculum…”
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Impact of Synchytrium solstitiale on yellow starthistle seedlings and mature plants by Widmer, T L

“…Yellow starthistle (YST), Centaurea solstitialis L., is a noxious weed from Europe that has invaded the western US. Recently, a new disease of YST called false…”
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Susceptibility of sprouted oak acorns to Phytophthora ramorum zoospores by Widmer, T L, Dodge, S C

“…Phytophthora ramorum is a recently emerged pathogen having established in Europe and several western U.S. states, including California and Oregon. It has a…”
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Host range determination of Synchytrium solstitiale: Issues as a candidate for biological control of yellow starthistle by Eskandari, F M, Bruckart, W L, Widmer, T L

“…Synchytrium solstitiale, a chytrid recently evaluated for biological control of yellow starthistle (YST, Centaurea solstitialis), was found to cause infections…”
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Resting spores for long-term storage of Synchytrium solstitiale, a candidate for biological control of yellow starthistle by Eskandari, F M, Bruckart, W L, Widmer, T L

“…An isolate of Synchytrium solstitiale from France has been evaluated recently for biological control of yellow starthistle (YST, Centaurea solstitialis)…”
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Screening Gulf Coast forest species for susceptibility to Phytophthora ramorum by Preuett, JA, Collins, D J, Widmer, T L, Luster, D G

“…Phytophthora ramorum, the causal agent of sudden oak death, is an emerging pathogen of California oak woodlands. This pathogen poses a threat to woody plants…”
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Protocol for maintenance of Synchytrium solstitiale, cause of false rust on yellow starthistle, under greenhouse conditions by Eskandari, F M, Bruckart, W L, Widmer, T L

“…An isolate of Synchytrium solstitiale was collected in France and sent to the FDWSRU to evaluate as a candidate for biological control of yellow starthistle…”
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Field evaluation of carrot cultivars for susceptibility to fungal leaf blight diseases in New York by Gugino, B.K., Carroll, J.E., Widmer, T.L., Chen, P., Abawi, G.S.

“…Carrot cultivars grown in New York were evaluated for susceptibility to the fungal leaf blight pathogens Alternaria dauci (1999) and Cercospora carotae…”
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Synchytrium solstitiale sp. nov. Causing a False Rust on Centaurea solstitialis in France by Widmer, Timothy L.

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In vitro culturing of yellow starthistle ( Centaurea solstitialis) for screening biological control agents by Vidal, Karine, Guermache, Fatiha, Widmer, Timothy L.

“…In an effort to design a bioassay to screen for biocontrol pathogens and their toxins, procedures were developed to produce calli of yellow starthistle (YST),…”
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