Graph two depicts ten scenarios where spray
released from a ground sprayer (that is, airblast and horizontal boom) will drift
downwind. In all cases, a portion of the spray released from any sprayer is comprised
of fine and very fine particles, and that volume fraction of spray will drift
considerably farther than the rest of the spray released. The largest volume of
spray that travels the furthest downwind comes from a boom sprayer emitting fine
droplets more than a metre from the ground. The smallest volume of spray that
travels the least distance comes from a boom sprayer one half metre from the ground
emitting coarse droplets.
to Which factors reduce pesticide drift.