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henry_kuska

Field trials of Rose Rosette Disease susceptibility

henry_kuska
10 years ago

"Many popular varieties have been noted exhibiting symptoms of the disease with apparent susceptibility ranging from very susceptible (plants die in one to two seasons) through resistant (plants exhibit symptoms but live for several years) to apparently immune. In field trials conducted by MDA, âÂÂFlower Carpetâ varieties have proven to be very susceptible, Meidland cultivars, including âÂÂAlbaâ are moderately susceptible and the native species of roses; Rosa setigera, R. virginiana, and R. palustris and the naturalized R. rugosa seem to be very resistant to possibly immune to the disease. There are reports from the landscape and nursery trade in Maryland that other rose cultivars and species affected include, in no particular order: âÂÂKnockoutâ , âÂÂTamoraâÂÂ, âÂÂZephrine Drouhinâ , âÂÂColletteâÂÂ, âÂÂSnowbushâÂÂ, âÂÂKew RamblerâÂÂ, âÂÂNew DawnâÂÂ, âÂÂDaybreakâÂÂ, âÂÂCarmenetta âÂÂ, âÂÂClymenestraâÂÂ, âÂÂAlexander GiraultâÂÂ, âÂÂAmericaâÂÂ, âÂÂWilliam R. SmithâÂÂ, âÂÂZitkalaâÂÂ, âÂÂAmerican PillarâÂÂ, âÂÂSnow DwarfâÂÂ, âÂÂEdmund ProustâÂÂ, âÂÂEasleaâÂÂs Golden RamblerâÂÂ, âÂÂMrs. F.W. FlightâÂÂ, âÂÂEdith BallendenâÂÂ, âÂÂWalsh RamblerâÂÂ, âÂÂMadam Alfred CarriereâÂÂ, and Rosa wichuriana hybrids."

H. Kuska comment, please note: (MDA) is Maryland Department of Agriculture

Here is a link that might be useful: July 6, 2011 Maryland Department of Agriculture (MDA)

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