Monday, May 30, 2016
Saturday, May 28, 2016
Herbicide Drift
Herbicide drift on a Redbud tree, Cercis canadensis. On the right I am holding a leaf that has escaped the herbicide damage. The distorted leaves in the background with wavy edges show herbicide injury.
Herbicide injury on Spreading Euonymus, Euonymus kiautschovicus. I am holding a leaf without herbicide injury.
These Tulip Tree (Liriiodendron) leaves show herbicide damage with yellow spots and distortion of the leaves.
Anthracnose on sycamore
A number of fungi cause anthracnose which can affect several tree species in Kansas. On this sycamore you see the brown irregular spots along the leaf veins. This disease occurs in cooler weather and when the temperatures increase these leaves will drop. This is mainly a cosmetic problem unless too many leaves are affected and drop. This can cause extra stress for the tree making the tree more susceptible to other diseases and/or insect damage.
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