I know the old saying is “knee high by the fourth of July”, but how about tasseled corn by July 9th? I’m doing some crop scouting up by Galesville today and in a lot of the fields I’m seeing V14 to V15, and this earlier planted field has its tassels emerging this morning.
A quick reminder on fungicides on field corn. Please make sure you have full tassel emergence on 100% of the field and the axillaries (little side branches) on the tassels are folded out. An example of a product you could look at in the very near future would be Headline AMP at 10 to 14 oz per acre. For more information click on the following link … headline-amp—technical-information-bulletin
Please let your local Allied Agronomy Advisor know if you have any questions — Rob Shields, Agronomist
The short answer is neither. I have looked at a number of fields in the area and it looks like we have some Bacterial Blight in our soybeans. I attached a photo from an area field, and some nice publications from Iowa State going over what these disease look like. When I looked closely at area fields you could find the missing pieces of the soybean leaf. So this helped to prove that nothing had eaten the plant but rather it is the result of a bacterial disease attacking the plant and pieces of the leaf tissue falling to the ground.
Remember a foliar fungicide will not do anything for bacterial diseaseas, but if you have any fungal diseases present in your soybeans, fungicides will help in that situation.
Please let your local Allied Agronomy Advisor know if you need help looking at your soybean fields. We would like to help you evaluate what, if any, disease pressure you are experiencing currently and offer recommendations to assist you. — Rob Shields, Agronomist
Bacterial Blight soybeandiseases