Tree Fruit: Horticulture
Criteria for Determining Bud Stages
The source of the following pictures is: 'Growth Stages in Fruit Trees', New York Food and Life Sciences Bulletin, No. 58, February 1976, New York State Agricultural Experiment Station, Geneva, NY
Half Inch Green
- Criteria: When 50% of non-spur McIntosh buds appear as the above pictures.
- Please note that Green Tip should be viewed from the side -- in other words, do not look straight down into the bud to see if you can see green tissue.
- Criteria: Pink -- when 60-70% of Blossoms are as shown on non-spur McIntosh
- Criteria: Full Bloom -- when 60-80% of fruit buds are in bloom on non-spur McIntosh
- Criteria: Petal Fall -- two stages are important as 'biofixes'
- 95% Petal Fall (when 5% of fruit buds still have their blossoms)
- and 100% Petal Fall (when, for all purposes, petal fall is complete, i.e., can have a few petals left on tree)
Last modified April 22 2014 11:50 AM