#$%^&*AU2014203043A120150514.pdf#####P1 153AUAU ABSTRACT An arrangement 9, of two or more sprayer units 5, 17, is transportable through a tunnel of plants. Each of the sprayer units includes a fan blade 21, a driver 23 and an agent supplier 25. The fan blade is mounted, and rotatable about an axis, to drive at 5 least air towards the plants. The driver is for driving the fan blade to so rotate. The agent supplier is arranged to supply the agent such that the agent is conveyed by the driven at least air. The sprayer units are mounted and configured to together convey agent to substantially all of a region, of the plants, bounded by the 11 o'clock position and the 1 o'clock position. 103/4 31 33 21 19 2 27 13 15 29 37 39-35 Fig 5 1197 21' Fig 6
