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Strawberries and Caneberries
 
University of California Agriculture and Natural Resources Agriculture and Natural Resources Blogs
FRI, DEC 2 2022
12:30:51
Comments:
by Bryce Belgum
on February 24, 2016 at 12:01 PM
I am hearing about an increase in rust development in plantings early on after cutbacks, during this prolonged heat spell we are experiencing in Ventura County. This is the opposite of what we would expect since optimal weather conditions should be cool, humid.  
Could heat/water stress be resulting in more favorable plants for the fungus, or is it more likely that the fungus itself is creating this appearance of stress?
by Mark Bolda
on March 17, 2016 at 4:31 PM
Hi Bryce,  
Variety has a lot to do with it. The other thing is what the inoculum load is after the cutbacks - you have a lot of fresh growing material right up next to leaves which could carry the disease.  
At any rate, I'd be a little concerned about getting this normally late disease this early in the game, and make some moves to mitigate it.  
Mark
 
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