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The use of chemical insecticides has had many adverse effects. This study reports a novel perspective on the application of insect-based compounds to repel and eradicate other insects in a controlled environment. In this work, defense fluid was shown to be a repellent and insecticide against termites and cockroaches and was analyzed using gas chromatography-mass spectrometry (GC–MS).  Globitermes sulphureus  extract at 20 mg/ml showed the highest repellency for seven days against  Macrotermes gilvus  and for thirty days against  Periplaneta americana . In terms of toxicity,  G. sulphureus  extract had a low LC 50  compared to  M. carbonarius  extract against  M. gilvus . Gas chromatography–mass spectrometry analysis of the  M. carbonarius  extract indicated the presence of six insecticidal and two repellent compounds in the extract, whereas the  G. sulphureus  extract contained five insecticidal and three repellent compounds. The most obvious finding was that  G. sulphureus  defense fluid had higher potential as a natural repellent and termiticide than the  M. carbonarius  extract. Both defense fluids can play a role as alternatives in the search for new, sustainable, natural repellents and termiticides. Our results demonstrate the potential use of termite defense fluid for pest management, providing repellent and insecticidal activities comparable to those of other green repellent and termiticidal commercial products.

Evaluation of the chemical defense fluids of Macrotermes carbonarius and Globitermes sulphureus as possible household repellents and insecticides