Winter Wheat Update as of May 2, 2007

The most advanced, vigorous and uniform stands are on early-planted and well-drained fields across the region. The first node (Zadok Stage 31) is very evident in the sandy soils of Essex County, and is just moving (Zadok 30) in the loam soils of South Bruce/North Huron Counties. Wheat planted into poorly-drained soils is lagging in development across the region (Z 21-23 in Essex and Middlesex, Z12-14 in South Bruce).

The red clover in underseeded fields is at the cotyledon-unifoliate stage in Middlesex and unifoliate-first trifoliate in Essex. Currently, no significant disease problems have been observed. Septoria is beginning to appear at very low levels in most fields, typically on older, dying leaves. Isolated lesions of powdery mildew have also been observed in dense, advanced stands. Currently, no insect problems have been found to date.

Table 1. Weed Stages and Species as observed in Essex, Middlesex and Huron/Bruce

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