Watch for insect damage and topdress your fields correctly!

Insect damage seen in Adams County, WI, on July 2.

Insect damage seen in Adams County, WI, on July 2.

Over the next couple weeks, it will be very important to keep an eye on your fields for insect damage and to topdress your fields with the correct recipe.

With the increase in temperatures, we need to keep a closer eye on our crops for insect damage. Yesterday one of our scouts, Bryan Decker, sent in some photos of some insect damage in northern Adams county.

Also with the constant flushing of the soil profile we are encouraging growers to evaluate fertility shortfalls in their crop ASAP. When the need is established, a liquid or dry fertilizer recipe should be developed and applied to the field as soon as possible. A lot of our corn is at or past the V6 stage, when the number of rows around is established. We want to make sure that our corn has all it needs at this critical stage. Also in preparation for the rapid growth phase, V8 to VT, the plant is going to be taking up a lot of nutrients. Our agronomists have done a lot of tissue testing this past week and a lot of the samples are showing some deficiencies. The major nutrient deficiencies are Nitrogen, Potassium, and Sulfur. Some micros that have shown up as low have been Zinc, Manganese, and Boron. If you are topdressing your corn please make sure you are putting together the appropriate recipe for your fields. Contact one of our agronomists to assist you in this process. Thanks and have a safe Fourth of July!

– Rob Shields, Agronomist

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July Crop Update

Potatoes

Late blight has been found in a potato field west of Plainfield last Friday, 6/28. With late blight in the area it is important to step up your fungicide program by shortening intervals and using premium products. Be sure to be scouting shaded East borders as they remain wetter later in the day and are therefore at a higher risk of infection by late blight especially if you are spraying by air only. This week we are fighting 3rd and 4th instar Colorado potato beetle larvae who survived earlier insecticide applications especially on edges.

Corn

In corn, we are making sure that the fields are weed free and continue monitoring for foliar diseases and insects. Our black light trap moth counts have remained low for most corn insects. We are seeing quite a few rose chafer beetles in several fields in the area, yet we are not seeing much feeding from them at all but will continue to monitor them.

Soybeans

In soybeans, we are cleaning up weeds across most of the area this week and monitoring fields for early insects and disease.

– Otto Oemig, Agronomist