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First Report of a Labyrinthula sp. Causing Rapid Blight Disease of Rough Bluegrass and Perennial Ryegrass.
- M. Olsen, D. Bigelow, R. Gilbertson, L. Stowell, W. Gelernter
- Biology, Medicine
- Plant disease
- 1 October 2003
A Labyrinthula sp. was isolated from symptomatic rough bluegrass (Poa trivialis L.) and perennial ryegrass (Lolium perenne L.) from a golf course in Arizona. Initial symptoms were a water-soaked… Expand
Rapid Blight: A New Plant Disease
The discovery of rapid blight is the story of a new plant disease whose unusual biology, inconspicuous morphology and apparently low economic impact nearly consigned it to oblivion. It is also a… Expand
Submerged Fermentation of Biological Herbicides
- L. Stowell
Development of production methods for commercial manufacture of bioherbicides is in its infancy. However, fermentation of fungi for use in industrial processes, such as the manufacture of wine and… Expand
First Report of Pyricularia grisea Causing Gray Leaf Spot on Kikuyugrass (Pennisetum clandestinum) in the United States.
Kikuyugrass (Pennisetum clandestinum) is a warm-season turfgrass that has been adopted for use in fairways and roughs in a number of subtropical areas including southern California, Mexico,… Expand
First Report of Gray Leaf Spot on Perennial Ryegrass Turf in California.
Gray leaf spot of perennial ryegrass (Lolium perenne L.) turf was first reported in the United States in 1991. The disease epidemic was primarily confined to golf course fairways in southeastern… Expand
Geographic information systems and geostatistics in the design and validation of regional plant virus management programs
A regional management plan was designed and implemented for a multivirus, multivector, disease complex in tomatoes in the Del Fuerte Valley, Sinaloa, Mexico. The viruses include tobacco etch and… Expand
Evaluation of field sampling techniques for estimation of disease incidence
Minimum soil nutrient guidelines for turfgrass developed from Mehlich 3 soil test results
7 Conventional soil nutrient guidelines are higher than needed to produce high 8 quality turfgrass. Although there have been repeated calls for more turfgrass soil 9 calibration research, it is not… Expand
Monitoring and Managing Putting Green Firmness on Golf Courses
Measuring greens firmness using the USGA TruFirm and the Clegg Soil Impact Tester at Victoria Country Club : A preliminary study
Two tools designed to quantify surface firmness, the USGA TruFirm and the Clegg Soil Impact Tester (Clegg), were compared in a preliminary study that measured the firmness of Poa annua greens at the… Expand