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Current Research Projects

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Optimal timing for preventative fungicide application for the management of Pythium root rot (PRR) on creeping bentgrass putting greens (Halle Hampy – M.S. Student)

  • Investigate the most efficacious time of year to initiate preventative fungicide treatments
  • Define treatment parameters through chronologically staggered initiation dates and corresponding monthly average soil temperatures
  • Determine efficacy with monthly to weekly disease severity and turf quality ratings over a three-year trial period
  • Establish application timing for optimal preventative management technique for PRR

Seasonal population dynamics of Pythium spp. in a creeping bentgrass green characterized by annual PRR symptoms (Halle Hampy – M.S. Student)

  • Determine and characterize the monthly fluctuations of Pythium spp. present in a creeping bentgrass green
  • Evaluate species dynamics as they relate to soil temperature, soil moisture, and absence or presence of PRR symptoms
  • Establish temporal Pythium spp. behavior to assist in the seasonal management of PRR

Pathogenicity and virulence of various Pythium spp. and Pythium spp. complexes on creeping bentgrass (Halle Hampy – M.S. Student)

  • Establish inoculum and pathogenicity assay techniques for mature Creeping bentgrass
  • Evaluate species-specific pathogenicity on mature creeping bentgrass in vivo
  • Evaluate in vitro fungicide sensitivity and pathogenicity of Pythium spp.

Optimal timing for preventative fungicide application for the management of large patch (Rhizoctonia solani) in warm-season turfgrasses. (Brenden Sledge – M.S. Student)

  • Study the most effective soil temperature to initiate preventative fungicide treatments
  • Determine treatment timing using the occurrence of average soil temperatures
  • Use weekly to bi-weekly disease severity ratings to determine preventative fungicide efficacy
  • Determine fungicide application timing for optimal large patch preventative management

Growth dynamics of Rhizoctonia solani in warm-season turfgrasses characterized by disease severity in vivo. (Brenden Sledge – M.S. Student)

  • Determine the optimal environmental temperature for the spread of Rhizoctonia solani in warm-season turfgrasses
  • Track disease progression in vivo comparing differing establishment temperatures
  • Cross reference with field research to determine the optimal time for large patch management

Effects of nitrogen levels and sources on Take All Root Rot (TARR) in bermudagrass. (Brandi Merrick – M.S. Student)

  • Investigate effectiveness of amounts of nitrogen fertilizer on bermudagrass infected with TARR
  • Investigate effectiveness of nitrogen sources on bermudagrass infected with TARR
  • Determine efficacy with monthly to weekly turf quality ratings and end-of-trial root examinations over the course of multiple eight week trials
  • Establish Nitrogen requirements for optimal management technique for TARR

Impact of Cultural Management on organic matter (OM) accumulation, root health, and turf quality in bermudagrass putting greens. (Brandi Merrick – M.S. Student)
  • Explore efficacy of four types of traditional cultivation methods with consistent top dressing on OM accumulation, root health, and turf quality on bermudagrass putting greens
  • Determine baseline response levels to each method with weekly to monthly turf quality ratings over a three year trial period
  • Establish cultural management techniques that provide highest root health and turf quality while keeping OM accumulation low

Organic Matter (OM) influence on disease severity of Take All Root Rot (TARR) on bermudagrass golf course putting greens. (Brandi Merrick – M.S. Student)

  • Examine bermudagrass golf course putting greens’ response to TARR at various levels of OM content
  • Evaluate percent disease severity ratings done weekly to monthly over a three year trial period to determine most susceptible levels of OM
  • Establish acceptable levels of OM accumulation relating to disease tolerance and severity of TARR