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OASCO carries ONLY the highest quality worm castings and black soldier fly insect frass available on the market, which are available in bagged or loose bulk quantities.
Enterra 100% BSF Insect Frass product derived from the exoskeletal and exudate matter of black soldier fly larvae, (Hermetia Illucens). A powdered (hammermilled) organic product, with diverse amino acid and micronutrient profile along with a vast beneficial microbial population.
For worm castings, NPK values should be ignored as these values are meaningless in regard to these products. Quality worm castings have high active biology counts, high chitin levels, and little to no useless filler materials.