We apologize that you were not thoroughly satisfied with Miracle-Gro Performance Organics Raised Bed Mix. You can apply about 1/2 inch of horticultural sand on top of the soil of potted plants. Larvae cannot burrow through the sand and will die, We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089 for assistance. When calling, please refer to this review.