Got blossom end rot or tip burn? FoxFarm Bush Doctor Cal-Mag is the macro-nutrient you need! Use Bush Doctor starting just before bud development. OMRI Listed and Registered CDFA Organic Input Material. 1 - 0 - 0 (1 nitrogen - 0 phosphorus - 0 potassium). 1 liquid pint. Always read and follow label directions. 

What is the coverage area? 1 tsp. per gallon of water.