I remain concerned about spider mites in areas which are under drought stress; I received a report this morning about mite problems in White County. Hopefully the rains this past week have slowed them down, but stay vigilant in areas under drought stress. Corn rootworm adult emergence should be well under way throughout the state. As most of the rootworm adults will still be in the field they emerged from, this is a good time to inspect fields to get a feel for the extent of your rootworm problem and how your traits/insecticides are performing. If you have high adult emergence, consider digging some roots to assess the extent of larval damage.

Speaking of damage, we learned how corn rootworm emergence tents hold up to an 85-mph derecho; not well, as it turns out. However, it was probably worth the damage to get some healing rains.

Much of the corn in NW IL was starting to roll and pineapple on late last week. The rain on June 24 -25 and late this week along with cooler conditions reduced this impact. Many fields of corn and soybean field seem to be behind in height and canopy closure at this point. Some of the early planted field which received timely showers during May and June look more normal. This really shows the spotty distribution of late spring showers.

Wheat fields are starting to turn. Late last week, I did notice wind damage in a couple of wheat fields between Pearl City and Freeport. The picture included shows what appeared to be straight line wind damage. Another field had more swirled and random damage.

Extremely welcome rains came across our area last week. Totals were .75-3”. Some storm damage south and along I74. Beans will likely canopy in the next 10 days. Corn is beginning to tassel, but looks extremely uneven.

This week, I took a drive into Douglas County to check out crop conditions. As is the story around much of the area, there are a lot of uneven corn fields as well as stunted soybeans still some ways from closing their canopy. In the fields I visited, soil moisture was variable. Some were relatively dry in the top inch or two, while others appeared to be at or near field capacity. Soybeans ranged from very early R1 to early R3. Most corn was tasseling or within a leaf or two of doing so. Some was in full flower with silks several inches long. Fields in full flower right now appeared to have more even growth across the field, while those that may have been planted a bit later or experienced drought stress a bit earlier ranged from V10-11 to R1 on plants within several yards of each other. Weed pressure, notable waterhemp, was also moderate to significant in areas of corn fields where corn plants were shorter.

Welcome and timely precipitation this past week in NE Illinois. Some areas had 3+ inches of rainfall but most had less. Adequate for now, but continued precipitation would be welcome for many. Some of the earliest planted or shorter season hybrids are starting to tassel. The emergence of tassels visibly illustrates the lack of uniform growth in some fields, likely due to earlier season stresses. Soybean are currently R1 nearing R2 (full flower). Japanese beetle adults can now be found leaf feeding. Recent rains have mostly halted the wheat harvest in northern Illinois. Potato leafhopper damage clearly detected in Alfalfa fields.

The recent precipitation events left the soil with high moisture levels, helping double cropping soybean fields to emerge. This particular field was planted about two weeks ago, under drought and without access irrigation, but plants are emerging with high vigor and uniform stand. With more rain on the radar, this particular field has good yield potential at this point.

Corn is tasseling in some fields. Uneven fields have a few tassels here and there. Judging the appropriate time for fungicides in the uneven fields will be an issue. In my opinion later is better than earlier. Be judicious on additives with the fungicides which can cause more issues with crop injury.
Soybeans are getting closer to closing the canopy. The recent rains will germinate some weeds. Read the label before attempting late herbicide applications.

Very scattered rain July 1-4 across the region. Reports of no rain to 6 inches in locally heavy spots. Rain was spotty as you may have got rain on this quarter section and not the next. On our own farm we had one rain event where we had 4 tenths on one field and basically 0 half mile down the road on another. Despite the rain we are far from out of the woods on drought. The moisture hasn’t meet yet on our own farm and most others across S Illinois.

Lots and lots of questions on April planted corn. Some 4 ft tall and trying to tassel, most without any silks. In some fields silks out but no tassels. We are seeing root issues in the dry soil, some of the storms root lodged the corn and it has nothing to hold onto with the dry conditions. Late May and June planted corn still has a fighting chance. Some fungicide is going on, but I am not sure why at this stage, there is no disease pressure and in some cases, we don’t really have a viable host.

Early planted soybeans have maybe 9 nodes in some fields and have never closed the rows on 15 inches. Heard the seed production guy say he has never seed blooms “on the ground” because plants are so short. Later planting and later maturity are doing better. Spider mites are showing up in many places.

2023 harvest is shaping up to be a highly variable mess. There will be fields of good/average yields next to almost complete disasters based on planting date and what cloud it was under when.

Corn pollination is taking place. Soybeans will be approaching R3 (pod set) soon. Both corn and soybeans will be at the correct growth stage for fungicide and insecticide in about a week. There appears to be a lot of waterhemp escapes. Also saw minor corn snap and lodging.