Profile: BioLogic Company grows, formulates & sells, natural insect parasites and pathogens of pests. Our natural biocontrol products for home, lawn, and garden, kill insect pests, but are more specific and therefore safer than many other controls. Our product Heteromask™ kills pest insects using natural biological controls. The active units (AU) are microscopic beneficial insect-eating nematodes, a strain of Heterorhabditis bacteriophora. They kill a variety of pests important in lawns, gardens & in horticulture. Our product scanmask is a natural insecticide. The active units (AU) are microscopic beneficial insect-eating nematodes, a cold-active strain of Steinernema feltiae. They kill a variety of pests important in horticulture.