any of several species of fungi ( Phragmidium species ) that infest only rose plants(passive) is caused byRose rust
Phragmidium mucronatum Phragmidium mucronatum ... a plant pathogencausesrose rust
distortion and discoloration on stemscausesdistortion and discoloration on stems
orange spots to appear on the undersides of leaves in wet and mild weather they enlarge into thick powdery masses of orange spots yellow rose disease yello yellow floor kitchencausesorange spots to appear on the undersides of leaves in wet and mild weather they enlarge into thick powdery masses of orange spots yellow rose disease yello yellow floor kitchen
the tops of leaves to become rusty and orange and is occasionally found on stemscausesthe tops of leaves to become rusty and orange and is occasionally found on stems
disfigured growth and lack of vigour root problems caused by Phytophthora root rot and honey fungus , leading to plant die - back and eventualcausingdisfigured growth and lack of vigour root problems caused by Phytophthora root rot and honey fungus , leading to plant die - back and eventual
alsocan ... causealso
orange , brown , purple , black or yellow spot - like spores on the underside of leavescausesorange , brown , purple , black or yellow spot - like spores on the underside of leaves
numerous small yellow spots on the undersides of the leavescreatesnumerous small yellow spots on the undersides of the leaves
yellow spots on upper leaf surfaces but brown spotscreatesyellow spots on upper leaf surfaces but brown spots
yellow - orange spots on the top of the leavescausesyellow - orange spots on the top of the leaves
usuallycausesusually
defoliation of your rose bushwill causedefoliation of your rose bush
distortion , galls or lesions on canescan causedistortion , galls or lesions on canes