Extension center educators, unit educators, and unit assistants in northern, west-central, east-central, and southern Illinois prepare regional reports to provide more localized insight into pest situations and crop conditions in Illinois. The reports will keep you up to date on situations in field and forage crops as they develop throughout the season. The regions have been defined broadly to include the agricultural statistics districts as designated by the Illinois Agricultural Statistics Service, with slight modifications:|
· North (Northwest and Northeast districts, plus Stark and Marshall counties)
· West central (West and West Southwest districts, and Peoria, Woodford, Tazewell, Mason, Menard, and Logan counties from the Central district)
· East central (East and East Southeast districts [except Marion, Clay, Richland, and Lawrence counties], McLean, DeWitt, and Macon counties from the Central district)
· South (Southwest and Southeast districts, and Marion, Clay, Richland, and Lawrence counties from the East Southeast district)
We hope these reports will provide additional benefits for staying current as the season progresses.
RAIN--little other news. Corn development has been minimal. Alfalfa weevil larva infestations are heavy in many alfalfa fields.
Considerable progress was made during the past week in corn planting. Corn planted several weeks ago has started to emerge and has a yellow appearance due to cool temperatures and cloudy conditions. Soybean planting started last week, as well.
Jim Morrison and Dave Feltes, Extension educators, both report light alfalfa weevil activity throughout northwestern Illinois, but no economic infestations were observed. Even though several storm fronts went through the area, there were no reports of black cutworm moth catches.
A little planting was done last weekend in the extreme north part of the region. However, heavy rains, beginning Sunday night and continuing early in the week, halted all fieldwork for several days in the entire region. The already ponded areas in some fields have enlarged dramatically; replanting in those areas now seems very likely.
In those fields with adequate drainage, corn has emerged with good population. Plant color has improved somewhat in the past few days.
At this point cropping plans have not changed; however, some producers have indicated that they may consider switching to a shorter-maturing corn hybrid after May 25.
Planted fields have stayed fairly weed free during the cooler temperatures, but that may change rapidly as warmer temperatures begin.
A large population (five to seven per plant) of flea beetle has been reported in a cornfield in Montgomery County. The field will be monitored for possible treatment as soon as weather conditions allow. No other pest problems in corn have been reported.
Yellow spots due to saturated soil, nitrogen loss, and/or disease in some wheat fields are now beginning to appear.
Alfalfa harvest will begin soon, when weather and soil conditions improve.