Regional Reports

May 5, 2000
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 form the East Southeast district)

We hope these reports will provide additional benefits for staying current as the season progresses.

East-Central Illinois

Mother Nature seems to be spoon-feeding us rain. If you count back to the first of the year, we are only about 2 inches below normal, but if you look back to last September, we are 6 to 8 inches behind.

Most cornfields are planted and many of those have emerged. Growth has been very slow, and this has caused continued concern with flea beetle injury in some fields. Annual white grubs have also been found in several fields.

A few soybean fields went in early, but widespread soybean planting is now under way.

Many wheat fields are in marginal condition due to thin stands and possible viral problems. There are reports of fungicide applications but no reports of actual fungal wheat problems.

Rainfall during Sunday night through Monday varied from a trace to 3/4 inch.

Black cutworm moth captures were sporadic with no intense captures reported.

Planting progress has moved ahead rapidly the past few days, with many finishing corn and moving to soybeans.

Early-planted corn has emerged, and corn planted 2 weeks ago is just spiking through. Warm temperatures the last few days have decreased emergence time considerably, with some later-planted corn emerging the same time as much earlier-planted corn.

Some flea beetle treatments have been applied to approximately 2-leaf corn.

Alfalfa weevil and clover leaf weevil activity escalated the past few days since the weather has warmed. The potential for weevil damage is higher than it has been for the past several years across northern Illinois. Alfalfa weevils are ranging in size from first to second instar, and clover leaf weevils are 3/8 to 1/2 inch in length. A few alfalfa fields have been treated for weevils.

Alfalfa height is 16 to 18 inches.

Bean leaf beetles are very noticeable and hungrily waiting for soybeans to emerge.

Southern Illinois

Wheat: Wheat in Feekes stage 10 to 10.5. Wheat curl mite identified on wheat collected from Perry and Franklin counties. Wheat streak mosaic confirmed in Randolph, Monroe, Washington, Franklin, and Perry counties. Infections spotty, with some crop destruction occurring in Randolph and Monroe counties. Some cereal leaf beetle feeding in Monroe County.

Corn: Planting continuing, with some come river bottom corn 2­3 true leaves. Upland crops 1­2 true leaf stage. Some black cutworm feeding in earlier-planted corn (Franklin County). Flea beetle and southern corn leaf beetle feeding in some fields. Japanese beetle grubs found in corn (Monroe County).

West-Central Illinois

· Almost all corn is planted and emergence is good. One comment that was made is that "it couldn't have gone in any better." However, there has been some corn replanted due to crusting problems.

· Insect problems reported include flea beetle, black cutworm, wireworm, white grubs, and southern corn leaf beetle. Cutworm clipping has been reported by a farmer in Montgomery County in a field that was planted on April 12, and several fields have been treated for southern corn leaf beetle in Pike and Scott counties. Some replanting has occurred because of wireworm and white grubs.

· Corn leafing out underground and poor rooting have also been reported in some of the drier areas.

· Soybean planting is about one-third complete and progressing rapidly each day. Late March soybeans are emerged and in unifoliate state.

· A commercial hay producer in Christian County reported beginning alfalfa harvest on April 25. It yielded 3.85 tons/acre at 54% moisture, 225 RFV, and 26.5% CP. Harvested acres are being treated for alfalfa weevil.

· Wheat looks fairly good; no pest problems reported. Some producers are concerned about possible nitrogen loss where all was applied last fall.

· Quincy airport reported less than 1 inch of rain for April.