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APRICOT Growth Stages and Critical Temperatures

 

Typical temperatures in Fahrenheit, at which 10% and 90% injury after 30 minutes exposure, is provided under each bud stage image.

To have a full crop of cherries requires well over 50% bud survival in most years, while apples, pears, and peaches may only need 10 - 15% bud survival

 

  First Swell (Bud Swell) Tip Separation (Swollen Bud) First White
  first swell tip separation first white
10% kill 15 20 24
90% kill --- 0 14
  First Bloom Full Bloom In the Shuck (Petal Fall)
  first bloom bloom petal fall
10% kill 25 27 27
90% kill 19 22 24
  Shuck Split (Post Bloom)
  shuck split
10% kill 28
90% kill 25