Pasture conditions are very good. The relationship between bud stage and NDF is not always as high as we might think. Cool, wet conditions can delay the onset of bud and flower stages while NDF continues to increase. With the cool wet weather, leaf spot and spring blackstem is showing up in some heavier growth alfalfa. Small dark brown to black spots show up on lower leaves and stems.
Infected leaves turn yellow, wither and fall off.
The best control is an early cutting to minimize leaf loss. When filling horizontal silos, keep in mind the importance of packing to reduce spoilage. Consider using a proven haylage inoculant. Silage corn planting will continue for at least another week. Remember that late-planted corn may be especially prone to European Corn Borer pressure.