Forage: Spring Black Stem

Forage: Spring Black Stem (Phoma medicaginis)

Field Crop Protection Guide 2011-2012, Order 2011-2012 publication

Disease is favoured by cool, wet weather conditions. Cut the crop early to reduce quality loss from premature leaf drop.


Active Ingredient	boscalid
Trade Name	Lance
Rate per hectare (product)	420 g per ha
Rate per acre (product)	170 g per ac
Comments	For use in alfalfa for seed production only. Ground and aerial application. Apply at 20%-50% flowering. Apply every 7-14 days if disease persists or weather conditions are favourable for disease development. Do not graze or feed treated hay to livestock. Maximum 3 applications/yr. 12-hr re-entry period.