ISSN:
1570-7458
Schlagwort(e):
Spodoptera littoralis
;
pesticides
;
RH-5849
;
ecdysteroids
;
pupation
;
circadian rhythmicity
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract Under laboratory conditions (L16:D8, 24°C, r.h. 80%), applying of an ecdysone agonist, RH 5849, (1,2-dibenzoyl-1-tert-butylhydrazine) onto final instar larvae of Spodoptera littoralis (Boisd.), Noctuidae, Lepidoptera, delayed or advanced the time of pupation depending on the time of treatment. This response was dose-dependent. In addition, non-lethal doses of RH 5849, ranging from 0.05 to 10 µg/larva were used. Following treatment of S. littoralis larvae with 5 µg RH 5849 the endogenous ecdysteroid level was increased or decreased depending on the time of application. Based on the results presented, we suggest that potential users of non-steroidal ecdysone agonists should consider the proper circadian timing of application in the field.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1003258319630
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