We have apple trees that have been dropping apples for the past couple weeks,...
We have apple trees that have been dropping apples for the past couple weeks, this seems to happen almost every year. Is this something normal or does it indicate a problem? Is there any recommendation for addressing this? We are picking them up as they fall. We estimate we are losing 60% or more of the apples on the tree. Thank you!
Hennepin County Minnesota
Thank you for the question. Some apple varieties are more prone to early fruit drop than others so this could be one cause. This Michigan Extension publication http://msue.anr.msu.edu/news/why_does_apple_fruit_drop_prematurely lists such apple varieties:
Apple variety tendency to pre-harvest drop:Less prone: Akane, Empire, Gala, Gingergold, Goldrush, Fuji, Idared, Jonathan, Jonamac, Paulared, Pinova, Sabina
Intermediate: Blondee, Braeburn, Cameo, Cortland, Jonagold
More prone: Arlet (Swiss Gourmet), Autumn Gold, Early Golden, Gravenstein, Honeycrisp, Jerseymac, Lodi, Golden Delicious, Golden Supreme, Gravenstein, Hampshire, Liberty, Lodi, McIntosh, Princess, Pristine, Spartan, Red Delicious, Stayman, Zestar