Manual of Rootstocks

Controller 9®Vigorous stone fruit rootstock

Used for: European plum, Japanese plum, Peach
Developed by: University of California Davis and USDA-ARS
Country of origin: United States
Introduced: 2003
Parentage: Frontier plum x Flamecrest peach

Conroller 9 is slightly less vigorous than ‘Nemaguard’, but with less water sprouts. It has unknown tolerance to waterlogging, calcareous soils and drought, good anchorage and is precocious, but not cold hardy.

Controller 9 rootstock characteristics

  • Species compatibilityEuropean plum, Japanese plum, Peach
  • Vigour % of standard90%
  • Rootstock size classVigorous
  • PrecocityPrecocious
  • Support requiredFree-standing
  • DeveloperUSDA ARS, University of California Davis Plant Breeding Center
  • Country of originUnited States
  • Period of origin2000
  • PhytophthoraSome susceptibility
  • Bacterial cankerVery susceptible
  • Root knot nematodeSome susceptibility
  • Ring nematodeSome susceptibility
  • Root lesion nematodeSome resistance
  • Root suckersFew

Find our more about this rootstock in the 'Manual of Worldwide Temperate Zone Fruit and Nut Tree Rootstocks'.