Rootstocks
Guardian
Other Names
BY520-9
Species
Prunus persica
Origin
USDA, released in 1993
Vigor
Standard
Vigor Explanation
Waterlogging Tolerance
Fair
Waterlogging Explanation
Calcareous Soil Tolerance
Poor
Compatibility with Peach and Nectarine
Good
Compatibility with Plum
Unknown
Suckering
Little or none
Explanations for calcareous soil tolerance - compatiblities - suckering
Drought Tolerance
Unknown
Anchorage
Good
Precocity
Precocious
Fruit Ripening
Normal
Flower Timing
Normal
Flower Density
Normal
Cold Hardiness
No
Rootknot Nematode
Resistant or tolerant
Lesion Nematode
Partly resistant
Ring Nematode
Partly resistant
Nematode Explanations
Has root-knot nematode resistance, but slightly less than Nemaguard. Has greater resistance to ring nematode than Nemaguard and is thus less susceptible to bacterial canker.
Bacterial Canker
Resistant or tolerant
Phytophthora
Unknown
Armillaria
Susceptible
Crown Gall
Unknown
Disease Explanations
Other Diseases
In NC-140 Trials
Availability from Nurseries
Propagation Methods
Seed propagated
Summary Comments
Similar to Nemaguard in many ways but is substantially less susceptible to bacterial canker and Peach Tree Short Life, and is thus widely plantedĀ in southeastern USA. |
Click below for more detailed information:
Soil Pests and Diseases - UCIPM Website
Armillaria
Bacterial Canker
Crown Gall
Nematodes
Phytophthora
Nursery Websites
Fowler Nursery - Rootstocks
Bright's Nursery - Rootstocks
Tree Connection - Rootstocks
Burchell Nursery - Rootstocks
Dave Wilson Nursery - Rootstocks
Sierra Gold Nursery - Almond Rootstocks