Phytophthora Crown, Stem & Root
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Phytophthora Crown, Stem & Root

Phytophthora nicotianae, P. cryptogeae, P. cactorum, P. dreschleri
Diseases

Susceptible crops

Affects all turfgrass, Agapanthus, Azalea, Boxwood, Camellia, Dianthus, Holly, Juniper, Lavender, Lily, Liriope, Lupine, Pansy, Petunia, Rhododendron, Rose, Rosemary, Salvia, Viburnum, Vinca

Symptoms

  • Plants begin to wilt and will not recover with additional water or cooler temperatures
  • The lower stem will have a dark, water-soaked lesions near the soil line
  • Plants ultimately collapse
Phytophthora Crown, Stem & Root