DISEASE: Hairy root
HOST: Rose
Hairy root symptoms of many fibrous roots (right). Noninfected root (left).
Hairy root | Rose
DISEASE: Hairy root
HOST: Rose (Rosa sp.)
PATHOGEN: Agrobacterium rhizogenes
SOURCE: R. Raabe
DISEASE: Hairy root
HOST: Apple
Crown gall (left) and hairy root (right) caused by Agrobacterium tumefaciens and A. rhizogenes, respectively.
Hairy root | Apple
DISEASE: Hairy root
HOST: Apple (Malus domestica)
PATHOGEN: Agrobacterium rhizogenes
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: APS
DISEASE: Hairy root
HOST: Rose
Crown gall (left) and hairy root (right) caused by Agrobacterium tumefaciens and A. rhizogenes, respectively. Healthy root (center).
Hairy root | Rose
DISEASE: Hairy root
HOST: Rose (Rosa sp.)
PATHOGEN: Agrobacterium rhizogenes
PATHOGEN SYNONYM: Rhizobium sp.
SOURCE: M. Schroth
DISEASE: Periwinkle wilt
HOST: Periwinkle
Infected plants with stunting and sparse foliage (center and right).
Periwinkle wilt | Periwinkle
DISEASE: Periwinkle wilt
HOST: Periwinkle (Vinca sp.)
PATHOGEN: Xylella fastidiosa
SOURCE: R. McCoy, M. Davis
DISEASE: Periwinkle wilt
HOST: Periwinkle
Draeculacephala minerva, leafhopper vector of Xylella fastidiosa on plants such as periwinkle and watercress.
Periwinkle wilt | Periwinkle
DISEASE: Periwinkle wilt
HOST: Periwinkle (Vinca sp.)
PATHOGEN: Xylella fastidiosa
SOURCE: J. Clark, A. Purcell, M. Davis
DISEASE: Phony disease (Phony peach)
HOST: Peach
Tree with characteristic reduced growth. Foliage is dark green, then turns yellowish. Twigs become brittle and branches die back. Fruit are small.
Phony disease (Phony peach) | Peach
DISEASE: Phony disease (Phony peach)
HOST: Peach (Prunus persica)
PATHOGEN: Xylella fastidiosa
SOURCE: P. C. Anderson
DISEASE: Phony disease (Phony peach)
HOST: Peach
Twigs on diseased trees have shortened internodes and increased lateral branching.
Phony disease (Phony peach) | Peach
DISEASE: Phony disease (Phony peach)
HOST: Peach (Prunus persica)
PATHOGEN: Xylella fastidiosa
SOURCE: M. Davis