Wednesday, April 23, 2025

Flowering in Florida

 We know that Anna, Dorsett Golden, Tropic Sweet and Ein Shemer will flower in Florida's spring, and we are currently unraveling the mechanisms of dormancy release/ floral control. 

But after that wave of flowers in Jan/Feb, we have other trees that do flower and produce fruit, starting in April. 

In early April, 2025, we had flowering on Reverend Morgan and Sundowner after about 530 chill hours. This was followed in mid-April with flowers on Cauley, Orange Cauley, and Chestnut Crabapple. These have always shown flowering tendencies here in Archer, FL. Some "Shell" specimens continue to flower. Black Strawberry made one set of flowers on a 90 degree bent branch. 

The last week brought flowers on White Winter Pearmain, Wickson Crab, and Winecrisp. 

Today on April 21 there are new flowers on Granny Smith, Mutsu and Arkansas Black. 

Crosses were made with Anna pollen against everything flowering, but the numbers are limited by a few bursts of flowers.  What we do know-

Wickson Crab- not self fertile

Rev morgan - self fertile

Granny Smith - not self fertile / self fertile, depending on the website you check

Cauley - self fertile

Orange Cauley- assuming self fertile

Shell - self fertile

Winecrisp - Not self fertile

Cripps Red (Sundowner) - Not self fertile

All crosses were performed close to 'popcorn' stage and flowers were emasculated, even in non-self-fertile varieties.  'Anna' was used as the pollen parent. 






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Controlling Peach Rust

 Micobutanil dilution (Gravex) is 6-12 oz/100 gallons. That works out to 0.5 to 0.88 ml per gallon.