|Pruned field of Navaho blackberry, Guilford Co. NC|
A close up of these canes shows that the buds that are furthest out on the canes are more advanced on some canes (foreground), while other canes had very little bud break (background). The open buds could easily be broken or rubbed off during pruning.
With the predicted lows into the 20's this weekend, there is a potential for damage to flowers in the blackberry buds. Research has shown that unlike strawberry or blueberry ALL stages of flowers in blackberry are killed when the plant temperature is at 27 F.
Growers should monitor their fields and record the low temperatures. Check buds the day after the freeze and look to see if there is any damage in the center of the buds. See images below.
|Damaged blackberry bud (photo taken 2014).|
|Healthy blackberry bud (photo taken 2014).|
We have posted lots of information on this site before. Here is a quick link to some of that information.