Fig 1.
Schematic representation of diapause termination experiment indicating pyriproxyfen exposure of eggs (newly deposited and fully embryonated), larvae, pupae and adult females of Aedes albopictus under diapause conditions (8L:16D photoperiod and 21°C) and ovicidal activity under non-diapause conditions.
Fig 2.
Hatching of newly deposited and fully embryonated diapause eggs of Aedes albopictus under diapausing conditions (8L:16D and 21°C) with pyriproxyfen exposure (0.01–1 ppm).
Solid lines of newly deposited diapause eggs designated with same capital letters and dotted lines for diapause fully embryonated eggs designated with small letters are not different significantly (One-way ANOVA, p < 0.05).
Table 1.
Hatching of newly deposited and fully embryonated diapause eggs of Aedes albopictus with exposure of pyriproxyfen under diapausing conditions (8L:16D photoperiod and 21°C) and stimulated non-diapausing conditions (16L:8D photoperiod and 26°C).
Fig 3.
Comparison of developmental stages of non-diapause, diapause control and diapause treatment (1 ppm pyriproxyfen) eggs of Aedes albopictus.
Non-diapause eggs (16L:8D photoperiod and 26°C) showed 6, 12, 24 and 48 h developmental intervals, whereas, diapause eggs (8L:16D photoperiod and 21°C), both control and treatment showed 2, 3, 4, and 5 d post-oviposition developmental intervals.