West-Central Illinois |
· Significant rain spread through most of the region, halting any fieldwork. Farmers got back into the fields in some areas on Tuesday and Wednesday.
· Most of the corn is now planted; many acres have emerged and are looking good. Some grass pressure has been noted in some fields.
· A low population of flea beetle can be found on earliest-planted corn.
· Another wave of black cutworm moths came through western Illinois last week; several cooperators reported intense captures.
· Severe seed corn maggot damage has been reported in a Morgan County field.
· Some unevenness of corn germination and emergence has been reported due to varying levels of soil moisture.
· Some corn has been replanted due to white grub damage.
· Wheat is approaching flag leaf emergence (Feekes Stage 8).
· The majority of alfalfa fields are at or above threshold levels for alfalfa weevil. Several fields will be treated with an insecticide very soon.
· Soybean planting will begin as soil conditions improve.
Wheat: Most wheat in early boot, some heads showing. Some wheat streak mosaic showing up in Randolph, Monroe, and Washington counties.
Corn: Most corn planted. Some of the earliest plantings (late March) up last week. Black cutworm present in Gallatin/Saline counties. Some growers applying chemical treatments at planting.
Alfalfa: Some first cutting under way. Alfalfa weevil pressure moderate; some treatments being made.
Rainfall for the past week totaled 2 to 5.5 inches. Where rainfall was the heaviest, considerable ponding has occurred, with some minor flooding from small streams and rivers. Intense rainfall created erosion problems in some fields.
Fieldwork will be delayed until perhaps the end of the week where rainfall was the heaviest. Planting had resumed on April 24 on the sandy soils in the Carroll County area.
Intense black cutworm moth captures were recorded on April 19 and 23 in Ogle County and April 20 in Stephenson County.
Corn planting in some areas is 20% complete, but in most areas it is 10% or less. Corn planted at least 2 weeks ago has still not emerged. Percentage of soybeans planted is still quite small.
Alfalfa height is 6 to 10 inches. Not enough degree-days have accumulated for alfalfa weevil activity to begin, but with temperatures forecasted to remain warm, weevil activity should become noticeable soon.
Spring pasture growth has been excellent.
Herbicide carryover problems have been noticed in some oat fields, and suspected herbicide drift problems have been reported.