Crop Rollers - Figure 2, Hairy Vetch Growth Stages

Hairy vetch growth stages based on the upper five nodes of the vine. Growth stage depends on the number of buds that have begun to bloom or produce pods. Vegetative (1), no flower buds are visible; early pod set (7), when 1‐2 pods are visible; and late pod set (9) when 4+ pods are visible. Consistent control with the roller‐crimper was achieved at early pod set (7).