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Tammie from Lusby, Maryland writes,

Does the Gentrol Point Source affect Carpet Beetle Adults or Larvae or both?

We are at the point in trying to get ahold of our infestation where adult beetles are emerging from prior larvae and soem adults have laid eggs and tiny larvae are emerging. Since these work for 90 days, I need to know WHEN to put them out. If they only work for the adult beetles, I may be too late.


Yes. According to the manufacturer Gentrol Point Source is effective for carpet beetle larvae.  The active ingredient is a juvenile growth hormone mimic and more or less stunts the proper growth of the larvae. Activating Gentrol Point Source is as simple as squeezing the raised end of the plastic disc. This releases Gentrol IGR onto a filter paper. From there, it moves up to 75 square feet, damaging pests and preventing them from reproducing.

Answer last updated on: 03/26/2013

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