A vigorous rootstock suitable for a replant situation. Resistant to wooly aphids. Widely used in the Hills area of Perth and to a smaller extent Queensland's Granite Belt. Suitable for spur varieties such as Pink Belle. Not suitable for heavy soil conditions

A 1976 cross Ottawa 3x Robusta 5. A semi dwarfing rootstock that grows trees larger than M26. Is a very productive tree similar to M9. Resistant to Fireblight and phytophthora but is attacked by wooly apple aphids. Suitable for replant sites.

A reasonably new rootstock which is semi dwarfing, trees 3.5 to 4m approximately. Shows fairly good resistance to wooly apple aphid, fire blight and phytophthora. Trees are also suitable in replant sites. Yield is better than M26. Unfortunately little is known about CG202 on compatibility and cropping etc.

Ottawa 3 x Malus floribunda in 1981. A dwarfing rootstock which is very productive, similar to M9, growing good sized fruit. Trees are resistant to fire blight and apple scab but not to woolly apple aphids and powdery mildew. Threes have average root systems and adapt to a range of soils. Produces few suckers. Little is known yet on G16 rootstock. Plant at high densities

P1 80 select grows to a similar size as M6 with a comparable root system and a stronger cropping capacity. Young trees may require staking or a support structure. P1 80 has proved to be fantastic in stool beds. Trees have moderate frost resistance and are susceptible to fire blight and mildew. Sucker slightly, few burknots. A M9 x M4 cross