Plant health effects hard to detect for some pigment products

Turf colorants (pigments, dyes and paints) are becoming increasingly popular for use on non-overseeded turf, and on damaged turf, and almost all experts and researchers agree that these products can save money, resources and even jobs.

There is disagreement, however, on the existence of so called "plant health effects" of some of these products. While some researchers have noted subtle, but significant improvements in the turf's ability to cope with summer stress, others see no effects at all. Dr. Bert…