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Ovicidal, larvicidal and juvenilizing activity of a picolinephenoxyanilide against Cydia pomonella
Author(s) -
Canela Ramon,
Balcells Mercè,
Dalmau Laura,
Avilla Jesús
Publication year - 2000
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/1526-4998(200007)56:7<586::aid-ps172>3.0.co;2-e
Subject(s) - larva , juvenile hormone , pupa , toxicology , bioassay , biology , chemistry , botany , ecology
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 24 h 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 juvenilization effects, which were dependent on the applied dose. © 2000 Society of Chemical Industry