Survival of Helicoverpa punctigera (Wallengren) and H. armigera (Huebner) (Lepidoptera: Noctuidae) pupae submerged in water.; Survival of Helicoverpa punctigera (Wallengren) and H. armigera (Huebner) (Lepidoptera: Noctuidae) pupae submerged in water
The effect of varying periods of submersion in water on survival of non-diapausing pupae of Helicoverpa punctigera (Wallengren) and H. armigera (Huebner) was investigated. At 25 degree C the submersion time to kill 50% of pupae was 49 h for H. punctigera and 35 h for H. armigera . Since pupae surviv...
Gespeichert in:
Veröffentlicht in: | Journal of the Australian Entomological Society 1990-01, Vol.29 (3), p.191-192 |
---|---|
Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The effect of varying periods of submersion in water on survival of non-diapausing pupae of Helicoverpa punctigera (Wallengren) and H. armigera (Huebner) was investigated. At 25 degree C the submersion time to kill 50% of pupae was 49 h for H. punctigera and 35 h for H. armigera . Since pupae survive relatively long periods under water, drowning may not be an important mortality factor in the field except when prolonged waterlogging occurs. |
---|---|
ISSN: | 0004-9050 |