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Issue No. 10, Article 8/May 27, 2005

Regional Reports

Northern Illinois

Corn has responded to warmer temperatures by showing a greener color. Most advanced corn would be at V4 stage. Nearly all soybean acres are planted. Considerable soybean emerged in the last 7 to 10 days, with the most mature plants at V1 stage. Wheat is starting to head, and most oats have two joints. Alfalfa hay is being harvested. Postemergent herbicides are being applied. Very few black cutworm moths have been caught in traps.

Southern Illinois

Everything is not perfect in southern Illinois, but the weather does not get much better than it is currently. Fieldwork and planting continue to progress. Soybean planting is about 80% or more done. Many soybeans have not yet emerged. Some areas are starting to be dry, with less than 50% of normal May precipitation.

Wheat is in the process of grain fill. Stripe rust is present in some varieties. Head scab does not look to be a significant problem this year, although some locations may vary. Second-cutting alfalfa is growing well. There are very few pest problems to report.

West-Central Illinois

The first cutting of alfalfa continues in the area, with little or no evidence of potato leafhopper in much of the west-central region.

Corn is around the V6 stage in many fields (minus those replanted after our early-May cold spell). Development of replanted fields has accelerated. Producers are gearing up for "root digs," with rootworm egg hatch apparently under way (lightning bugs are out and about). A few fields have shown stand reduction because of wireworms.

Soybeans are up throughout the area, with many fields progressed into trifoliate stages of development. While stands do look good, some brick red rhizocotonia lesions are appearing on soybean hypocotyls and may be holding back the stature of some plants. A little bean leaf beetle feeding is evident, but none of that feeding currently appears to be of significance.

Wheat is pollinated. A few blasted heads are now evident. In addition to blasted heads, barley yellow dwarf virus is appearing at significant levels in many area fields.

Some escaped weeds are emerging.

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