Issue No. 17, Article 6/July 20, 2007
We are still enjoying good growing conditions in many areas, though a few dry pockets have not received rain coverage.
Most corn and soybeans continue to look good to excellent. Corn shows appropriate color and apparent nitrogen nutrition. Corn pollination checks also look good to excellent. Most corn is now R2 to early R4. Regular crop soybeans are R3 to R4, and double-crops are V3 to V4.
Japanese beetles are still prominent, and grasshoppers are being noticed.
Remember the University of Illinois Brownstown Agronomy Research Center Field Day on Friday, July 26. Tours begin at 9:00 a.m., with the last tour leaving at 9:30. Lunch is provided.
Rains over the area have really benefited crops. Rainfall amounts from .5 to 1.0 inch were measured. Some areas have had less than 2 inches since mid-May and were certainly feeling the effects.
Soybean aphids continue to appear in the west-central region. Some fields have displayed significant enough levels to attract natural controls, such as lady beetles and parasitic wasps. While such fields have to date been the exception rather than the rule, finding the pest is a fairly easy venture, and producers would be well served to maintain vigilance. Environmental conditions have allowed Septoria to reach atypically high regions of the soybean plant in some fields. Bacterial blight has also appeared. Most beans are at R3 stage.
Japanese beetles continue to make their presence known. However, while impressive populations have been observed, most aerial applications have been targeted toward applying fungicides rather than managing Japanese beetles or other silk-clipping pests. Most corn is beyond the stage where any treatment is warranted from silk-clipping pests. Corn leaf tissue remains largely devoid of disease.
Wheat harvest is complete. Some have reported 80-plus bushel yields; 60 to 70 bushels was very common.
Second-crop hay is being cut, and leafhoppers are in abundance. Some producers have elected to treat; others have not.