The RS103-130 variety is not genetically modified and has a naturally strong resistance to apple scab, also known as black spot, a disease caused by the fungus venturia inaequalis which affects both the foliage and fruit.
The apple is produced conventionally using a gene from the Asiatic apple variety Malus floribunda which has a proven resistance to black spot.
--ANI......0003] This invention relates to the discovery and asexual propagation of a new and distinct variety of apple tree, Malus domestic cv. "RS103-130", as herein described and illustrated. The new variety "RS103-130" was first hybridized by controlled pollination. The new variety "RS103-130" is a compact medium sized tree with variegated leaf colour yielding red-skinned fruit. The tree and the fruit of new variety "RS103-130" are resistant to apple scab (Races 1 to 5) incited by the fungus Venturia inaequalis.