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G.11 Apple Rootstock (Spring 2023)


A disease-resistant alternative to M.9. Also known as Geneva 11.

This dwarfing hybrid of Malling 26 and Robusta 5 is one of our favorite rootstocks at Cummins Nursery. G.11 has good resistance to collar rot and moderate resistance to apple replant disease. It has fireblight resistance that is significantly improved over M.9. Woollies find it less palatable than both M.26 and M.9. Burr knots and suckering are uncommon. The roots will have decent anchorage, but we have observed some leaning and we recommend that the tree receive support. Trees should be planted on good quality soils for best results; under positive conditions they will be precocious and productive. This rootstock outyields M.9 by 10-30%.

Highest-density planting recommendations for Honeycrisp and other weak cultivars: 2-2.5' x 10-11' (2178-1584 trees/acre); for vigorous cultivars such as McIntosh, Fuji, Mutsu, and Jonagold: 2.5-3.5' x 11-12' (1584-1037 trees/acre).

This was one of the first releases to come out of the Geneva, NY breeding program, developed by my father, Dr. Jim Cummins.

Volume Pricing

Premiums are included in the following prices if applicable. All rootstocks are roughly 1/4" diameter, approximately pencil-size.

Quantity G.11 Apple Rootstock
1-24 $4.35
25-99 $3.85
100-299 $3.25
300+ $2.95

Order Your Rootstocks

$4.35 ea.

This is the full retail price for orders of 1-24 rootstocks. You can get these rootstocks for as low as $2.95 each – see Volume Pricing above. More about Pricing & Grading.

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This dwarfing hybrid of Malling 26 and Robusta 5 is one of our favorite rootstocks at Cummins Nursery. G.11 has good resistance to collar rot and moderate resistance to apple replant disease. It has fireblight resistance that is significantly improved over M.9. Woollies find it less palatable than both M.26 and M.9. Burr knots and suckering are uncommon. The roots will have decent anchorage, but we have observed some leaning and we recommend that the tree receive support. Trees should be planted on good quality soils for best results; under positive conditions they will be precocious and productive. This rootstock outyields M.9 by 10-30%.

Highest-density planting recommendations for Honeycrisp and other weak cultivars: 2-2.5' x 10-11' (2178-1584 trees/acre); for vigorous cultivars such as McIntosh, Fuji, Mutsu, and Jonagold: 2.5-3.5' x 11-12' (1584-1037 trees/acre).

This was one of the first releases to come out of the Geneva, NY breeding program, developed by my father, Dr. Jim Cummins.



Rootstock Details

Category: apple

Tree Height & Spacing

Rootstock size class: Dwarf (25% of Standard)
Tree spacing: See details
Good for wildlife planting?

Properties

Precocious: Y
Anchorage: average
Burr Knots: N
Suckering: N
Virus: N
Brittleness: N
Ease of Grafting: Y

Diseases & Pests

Fireblight: Resistant
Phytophthora (Collar Rot, Crown Rot, Root Rot): Resistant
Replant Disease: Resistant
Woolly Apple Aphid: Susceptible






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