Issue No. 15, Article 7/July 1, 2005
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.
The continued hot, dry weather continues to stress both corn and soybeans, as is the case in most areas of the state. Extreme northwestern areas of the region (portions of JoDaviess, Stephenson, and Winnebago counties) received up to an inch of rainfall last weekend, but the majority of the region remained dry.
Scattered reports of spider mites in soybeans have been received, but there have been no reports of any fields treated with insecticides. Growers are encouraged to scout their soybean fields for spider mites if the dry, hot weather continues.
Jim Morrison, crop systems educator at Rockford, reports that second-cutting harvest of alfalfa is ongoing in northwestern Illinois, with yields being reduced by the dry weather. Jim also expects wheat harvest to begin in northwestern Illinois within a few weeks.
It is still dry. There have been some scattered thunderstorms, but most areas have not received rainfall. Early corn has begun to shoot tassels, and soybeans have also started to bloom. Everyone is aware of how critical moisture is when crops enter the reproductive stage. A very large portion of the 2005 crop potential will be determined over the next 2 weeks.
Double-cropped soybeans are emerging in some fields and waiting on rain in others. Still other fields were not planted because of hard, dry conditions.
Producers are scouting for Japanese beetles and spider mites.
Remember to place the SIU Annual Farmers Field Day on your calendar. It will be Wednesday, July 13, 2005, at 9:00 a.m., at the Belleville Research Center.
Dry conditions persist, and corn plants are rolling every day. The earliest-planted corn is starting to tassel, with a few silks out. Japanese beetle and rootworm adults are heavy in some areas. One farmer reported 40 rootworm adults per plant in one field that was starting to silk--he planned to spray in the next 24 hours. Soybeans are showing stress as well. Most fields are in the early reproductive stages. Spider mites and soybean aphids can be found in most fields, but few fields have reached any thresholds yet. Septoria brown spot has shown up in several fields as well. Wheat harvest varies across the region, from peak harvest to wrapping up with harvest. Yields are running from 50 to 70 bushels per acre, with very good test weights.