April 29, 2017

Leaf spot disease

We have noticed slight leaf spot disease on the Albion day-neutral strawberry leaves within the last two months.  However, the disease pressure has increased in the last two weeks in the non-low tunnel plot.  As you can see below, the leaf spot is much more prevalent on the non low-tunnel plant leaves than in the low tunnel.  Notice the bulls eye appearance with a gray center on the leaves.

Leaf spot disease

Non-low tunnel on the left (with leaf spot disease). Low tunnel on the right.

 

Leaf spot disease is a type of fungal disease; the fungal spores are transmitted by water splashing up onto the strawberry leaf surface.  In our growing area, we have had higher than average rainfall in 2015.