Insect Science and its Application (1999) 19, 187-191
V.C. Ofomata, W.A. Overholt and R.I. Egwuatu (1999)
Diapause termination of Chilo partellus (Swinhoe) and Chilo orichalcociliellus Strand (Lepidoptera: Pyralidae)
Insect Science and its Application 19 (2-3), 187-191
Abstract: The intensity of diapause of field-collected diapausing larvae of Chilo partellus (Swinhoe) and Chilo orichalcociliellus Strand (Lepidoptera: Pyralidae) was compared in the laboratory at 28 0.5C under a photoperiod of 12:12 (L:D)h. Chilo partellus terminated diapause faster than C. orichalcociliellus. Mean time to diapause termination was 9.7 days for C. partellus and 14.4 days for C. orichalcociliellus. Male and female C. partellus larvae terminated diapause and adults emerged at the same time, while significant differences were found in diapause termination and in emergence times between male and female C. orichalcociliellus.
Lintensité de diapause a été comparée chez les larves diapausantes de Chilo partellus (Swinhoe) et de Chilo orichalcociliellus Strand (Lepidoptera: Pyralidae), collectées des champs, dans des conditions de laboratoire à 28 0.5C et une photopériode de 12:12 heures. Chilo partellus bouclait sa diapause plus rapidement que C. orichalcociliellus. La durée moyenne de diapause était de 9,7 jours chez les larves de C. partellus contre 14,5 jours pour C. orichalcociliellus. Toutes les larves mâles et femelles de C. partellus traversaient la diapause et les adultes émergeaient en même temps, tandis que lon observait une différence significative dans les intervalles de diapause et démergence entre mâles et femelles de C. orichalcociliellus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): William A. Overholt
Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Chilo partellus | ||||
| Chilo orichalcociliellus |
