Abstract
N-(4-phenoxyphenyl)-2-pyridinecarboxamide (1) was synthesized from commercially available materials and its ovicidal and larvicidal activity against Cydia pomonella (L) was tested. The compound showed a LC 50 of 0.98 mg ml -1 when eggs less than 24h were sprayed using a Potter Tower, but it had no effect when eggs older than this were sprayed. The compound did not have larvicidal activity when larvae were treated with 1200 μg g -1 . However, the larval head capsules were smaller than those in the controls when treated at this concentration. To assess its possible juvenile-hormone-like activity, the compound was topically applied to young pupae of Tribolium confusum duVal, where it produced clear juvenilizadon effects, which were dependent on the applied dose.
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