{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T08:09:49Z","timestamp":1774426189450,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2011,5,10]],"date-time":"2011-05-10T00:00:00Z","timestamp":1304985600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"published-print":{"date-parts":[[2011,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>BACKGROUND:<\/jats:bold> Among the termite infestations in the United States, the Formosan subterranean termite, <jats:italic>Coptotermes formosanus<\/jats:italic> Shiraki (Isoptera: Rhinotermitidae), is considered to be the most devastating termite pest. This pest most likely invaded North America as a result of the disembarkation of wooden military cargo at the port of New Orleans that arrived from Asia during and after World War II. It has now spread over other states, including Texas, Florida, South Carolina and California. Devastation caused by <jats:italic>C. formosanus<\/jats:italic> in North America has been estimated to cost $ US 1 billion a year. Over the past decades, organochlorines and organophosphates, the two prominent classes of termite control agents, have been banned owing to environmental and human health concerns. At the present time, phenylpyrazoles, pyrethroids, chloronicotinyls and pyrroles are being used as termite control agents. Mammalian toxicity and seeping of these compounds into groundwater are some of the drawbacks associated with these treatments. The instruction for the application of these termiticides indicate ground water advisory. Hence, with the increasing spread of termite infestation there is an increased need to discover effective, environmentally friendly and safe termite control agents with minimal mammalian toxicity.<\/jats:p><jats:p><jats:bold>RESULTS:<\/jats:bold> Chromene analogs derived from a natural\u2010product\u2010based chromene amide isolated from <jats:italic>Amyris texana<\/jats:italic> were tested in a collaborative discovery program for effective, environmentally friendly termite control agents. Several chromene derivatives were synthesized and characterized as a novel class of potential termiticides, followed by bioassays. These compounds exhibited significantly higher mortalities compared with untreated controls in laboratory bioassays.<\/jats:p><jats:p><jats:bold>CONCLUSION:<\/jats:bold> Chromene derivatives have been shown to be a potential novel class of termiticides against Formosan subterranean termites. 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