yellow patch

A disease affecting several varieties of grasses, including bentgrasses, annual bluegrass, some perennial ryegrass and Kentucky bluegrass, which results in the development of yellow or brown rings.

Noun

  1. A disease affecting several varieties of grasses, including bentgrasses, annual bluegrass, some perennial ryegrass and Kentucky bluegrass, which results in the development of yellow or brown rings.
    • Throughout the year pathologists receive numerous samples of yellow, creeping bentgrass or annual bluegrass (Poa annua) from putting greens. In autumn or spring, superintendents sometimes suspect that yellow tuft...
    • Yellow patch, sometimes called cool-temperature brown patch, develops during prolonged cool (50-65°F; 10-18°C), overcast, and moist periods from late autumn to early spring. - 2013, Thomas L. Watschke, Peter H....
  2. A yellow badge.

Forms

yellow patches