The flame weeding machine is adapted to do 3 actions :
Weeding : 3 km/hr
Thinning : 3 km/hr
Leaf falling : 5 km/hr
The vine, leaf and brunch, are not cut during the flame leaf falling. In consequence, the risk of diseases is reduced.
With the flame leaf falling, after the passage, the leafs wither during the next 48 hours, and die in 8-10 days. Therefore, the grapes are exposed by the sun progressively, then it is also reducing the the diseases (botrytis).