caa a22 4500 397570430 CHVBK 20180308164839.0 cr unu---uuuuu 161202e19961201xx s 000 0 eng 10.1093/ee/25.6.1337 doi (NATIONALLICENCE)oxford-10.1093/ee/25.6.1337 Effects of Short- and Long-Day Photoperiods on Growth and Development of Sesamia nonagrioides (Lepidoptera: Noctuidae) [Elektronische Daten] [Argyro A. Fantinou, John A. Tsitsipis, Michael G. Karandinos] The effects of 2 photoperiods, a diapause-inducing (10:14 [L:D] h) and a nondiapause inducing one (16:8 [L:D] h) at 25°C on the growth and development of larvae of the corn stalk borer, Sesamia nonagrioides, were investigated. Under a long-day photoperiod, larvae completed their development and pupated after 6 molts, whereas under a diapauseinducing short-day photoperiod, several additional molts and considerable delay of pupation were recorded. Duration of 1st to 5th instars was about the same in diapause and nondiapause destined insects, but the duration of the 6th instar was significantly longer in diapause larvae. Similarly, head capsule widths of the larvae were about the same under both photoperiods until the 5th instar. The head capsule width of all instars, under both photoperiods, is described by the logistic model. Dyar's rule, implying a geometric model, was not found appropriate for our data. Larval weights were greater under long-day photoperiod up to 5th instar, but the reverse was true for 6th instar. Only 36% of the initial number of larvae reached pupation under short-day photoperiod, whereas 74% reached pupation under long-day photoperiod. Larval mortality gradually increased, for ≈ about 150 d under short-day photoperiod, whereas under long-day photoperiod, larval mortality occurred mainly during the first few days. Mean pupal weights for diapause and nondiapause insects were 202.8 mg and 168.1 mg, respectively. Under both photoperiods, female larvae tended to pupate later and the pupae were heavier. © 1996 Entomological Society of America Population Ecology nationallicence Sesamia nonagrioides nationallicence photoperiod nationallicence development nationallicence Fantinou Argyro A. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut Tsitsipis John A. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut Karandinos Michael G. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut Environmental Entomology Oxford University Press 25/6(1996-12-01), 1337-1343 0046-225X 25:6<1337 1996 25 ee https://doi.org/10.1093/ee/25.6.1337 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.6.1337 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fantinou Argyro A. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut NATIONALLICENCE 700 1- Tsitsipis John A. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut NATIONALLICENCE 700 1- Karandinos Michael G. Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/6(1996-12-01), 1337-1343 0046-225X 25:6<1337 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford