|Image 1. Bronzed flower buds|
|Image 2. Blackberry flower bud after freeze injury. Note that only the ovaries and the receptacle are blackened.|
|Image 3. Damage to blackberry buds in 2007, the entire flower, anthers, ovaries and receptacle are blackened, in most of these buds.|
In a few days you may see entire laterals wilting as was seen in the previous post. If you see this type of damage, you will loose the fruit from those buds. BUT you should see secondary flush of growth and based on what happened in 2007 you will get up to 70% of a full crop, later. Later in this year, means a normal fruiting season, I hope.
If you have damage, what should you do? With all the dead tissue, there is an increased risk of botrytis. You should apply a fungicide to help keep the infection level down. Maintain your spring fertilizer regime and keep weeds under control to reduce competition for nutrients.