Below is a picture of the initial signs of leaf hopper injury. You will notice a triangular yellow or purple discoloration at the tip of the leaves.
Beware that this is also a very common symptom of potassium deficiency or drought as well.
If you are seeing this kind of injury in your Alfalfa, to make sure it is caused by Leaf Hoppers, we need to find the presence of the leaf hopper by netting your field.
If you need your field sprayed or have any questions or concerns, please don’t hesitate to call!