Down To Earth Oyster Shell - 25 lb AirKing This fast-acting product can be

This fast-acting product can be used as an additive in conjunction with any base nutrient program for exceptional results

A powdery mildew fungus is an obligatory parasite and thus requires a living plant host

For use in soilless

spider mites

Contains spinosad

Down To Earth Oyster Shell - 25 lb AirKing This fast-acting product can beDown To Earth Oyster Shell is an all natural and high quality source of the essential plant nutrient calcium. Ancient oyster shells are carefully harvested and then ground into small, medium and coarse particles. These irregular shapes provide a sustained release of this valuable nutrient. DTE Oyster Shell also aids in improving structure of soils and building optimum tilth.