Another look at PGRs for poa control

Paclobutrazole (Trimmit), a plant growth regulator (PGR), is currently one of the most effective and safest control agents for Poa annua on greens and fairways. But there is still a lot of room for improvement in the levels of control achieved, and in the propensity for Trimmit to cause discoloration of desirable turf types.

It is for this reason that researchers have begun looking at combinations of Trimmit with other fertilizers, PGRs and pesticides to see if its performance can…