Rot Redux – Facts for Fancy Fruit

Rot Redux

Summer rots continue to rear their ugly heads (Fig. 1). This year, we are even seeing them on late season apples like Evercrisp    (Fig 2) and GoldRush.

On the plus side, we are seeing some level of control with all fungicides in our trials (data will be presented at the Indiana Hort Congress); unfortunately, on highly susceptible varieties like Honeycrisp, we need to do more research to figure out how to better control these pathogens. Treatments that provided reasonable control in Golden Delicious suffered 10 times more infections on Honeycrisp. Future research will examine the role of timing and fungicide choice on infection.

As always, please contact me if you are seeing new problems, increasing severity of problems, or you can surprise me and tell me what a great year you had! As you can see, Jojen loved the harvest, and has decided like most children, that Honeycrisp and Evercrisp are his favorite apples, followed by Golden Delicious (Fig. 3).

Share This Article
It is the policy of the Purdue University that all persons have equal opportunity and access to its educational programs, services, activities, and facilities without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. Purdue is an Affirmative Action Institution. This material may be available in alternative formats. 1-888-EXT-INFO Disclaimer: Reference to products in this publication is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in this publication assumes full responsibility for their use in accordance with current directions of the manufacturer.