Maintenance
All wikis at Biowikifarm are in read-only mode due to the restoration after a severe cyberattack in October 2023.
After 1 year being shut down the Biowikifarm is online again.
You see the latest restored version from 18th October 2023.
Environmental Entomology (1972) 1, 596-599
Dennis M. Dunbar and Oscar G. Bacon (1972)
Influence of temperature on development and reproduction of Geocoris atricolor, G. pallens, and G. punctipes (Heteroptera: Lygaeidae) from California
Environmental Entomology 1 (5), 596-599
Abstract: The effects of various constant temperatures on development of eggs and nymphs and on fecundity and fertility of G. atricolor Montandon, G. pallens Stål, and G. punctipes (Say) are presented. Eggs and nymphs of all species failed to complete development at 37.8°C. The egg incubation period decreased with increased temperature and was consistently shorter for G. pallens and consistently longer for G. punctipes at each temperature tested. The duration of the nymphal stages also decreased with increased temperature, but at 23.9°C, G. punctipes developed in the shortest time and G. pallens developed in the longest time. At the other temperatures tested the duration of nymphal stages followed the same order as eggs (G. pallens < G. atricolor < G. punctipes).
Oviposition and fertility were maximal in G. atricolor and G. punctipes at 32.2°C. Oviposition by G. pallens was maximal at 35.0°C. Females of G. atricolor and G. pallens, but not G. punctipes, oviposited at 35.0°C. At 23.9°C, only females of G. punctipes oviposited.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
environment/habitat manipulation
Pest and/or beneficial records:
Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
---|---|---|---|---|
Geocoris punctipes (predator) | U.S.A. (SW) | |||
Geocoris pallens (predator) | U.S.A. (SW) | |||
Geocoris atricolor (predator) | U.S.A. (SW) |