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Roses > Flowers > Spots on flowers

1 of 2
  • Gray Mold 1
    Credit: Michelle Grabowski
  • Gray Mold 2

    Credit: Michelle Grabowski

  • Gray Mold 3

    Credit: Michelle Grabowski

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green arrowGray Mold
Botrytis cinerea

  • Small red rings or flecks on white or light colored petals
  • Brown irregular spots on petals
  • Completely brown, curled over, dead flower buds
  • Brown sunken area on stem
  • Gray fuzzy spores produced in cool wet weather
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  • Thrips 1
    Credit: Clemson Univ.
  • Thrips 2

    Credit: Peggy Boike

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green arrowThrips

  • Active throughout summer
  • Causes brown streaks, esp. in light colored blossoms
  • Heavily infested buds may not open
  • Very small (< 1/16th inch), slender, light colored insects

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