Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Strip, (case of 144 blocks) MH These are the lever handles

These are the lever handles that are located on the top knife blade crossbar next to the adjustment dials

low PPM additive

and can be used in dilute or concentrated sprinkler or injector systems

The included Boost Adapter not only allows the blower to be powered through a wall outlet

The pupae are easily recognized because the larvae of the Eretmocerus (the parasite) moves the intestines of the whitefly larvae to its periphery

Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Strip, (case of 144 blocks) MH These are the lever handlesGrodan Improved Gro Block Improved GR10 Large 4" w Hole 4" x 4" x 4" Strip Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the