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Abstract

A method of treating drain systems containing organic matter and providing a biopesticide for killing insects is provided. The method comprises introducing into a drain system a bacterial culture, such as Bacillus sp or Pseudomonas sp, which metabolizes the organic matter, and a biocidal amount of an entomopathogenic fungal culture, such as Metarhizium, which kills the insects such as cockroaches or other soft-bodied insects. The drain system can be a residential or commercial drain system. The bacterial culture and the fugal culture can be maintained separately and then mixed for the treating of the drain, or they can be maintained together prior to introducing them into the drain. The microorganism cultures are dispersed separately or together into the drain. The cultures can be dispersed as a spray, a powder, a liquid, or a foam.

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First Claim