Alfalfa grow is progressing rapidly with typical stem heights of 10-16 inches of growth. Growers should be scouting for alfalfa weevil. On 5/9/08 I visited three (3) alfalfa fields and observed noticiable tip feeding on about 20-30% of the stems. Further inspections revealed small (1/8-1/4 inch) alfalfa weevel larvae tucked in the cluster of new leaves and leaf petioles. Levels were below economic threshold but will require rescouting by 5/16/08. (Economic threshold)
Corn is about 40-50% planted with some early corn emerged. Rain delays may force the question of switching to shorter hybrids but full-season hybrids should still be considered until early June.
Wheat development is at Feekes stages 8-9. Growers should scout for foliar diseases on suceptable varieties first and determine the presence and severity. (Ohio Wheat Diseases)
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