Information for scouting and diagnosing chemical and other injuries

The following information on physiological and chemical disorders can assist with scouting and problem diagnosis. A handy pocket-sized guide with a summary of this information can be purchased from MSU Extension. Or for assistance with identification, contact one of the diagnosticians at MSU Diagnostic Services by e-mail or phone.

Frost Damage to Blueberry Fruit

Winter Injury in Blueberries

Frost and Cold Damage in Fruit Crops

MSU Fruit CAT Alert Articles:
Gibberellic Acid to Increase Fruit Set (and Overcome Frost Damage?) (2003)
Blueberry Freeze Injury or Phomopsis? (2003)
Protecting Blueberries from Frost (2003)

Other Links:
MSU Extension Educational Materials