Annals of the Entomological Society of America (1997) 90, 169-176

Vicente Marco, Ana Taberner and Pedro Castañera (1997)
Development and survival of immature Aubeonymus mariaefranciscae (Coleoptera: Curculionidae) at constant temperatures
Annals of the Entomological Society of America 90 (2), 169-176
Abstract: Laboratory studies were conducted to assess the effect of temperature on the development rate and survival of a new sugar beet pest Aubeonymus mariaefranciscae Roudier at 7 constant temperatures ranging from 15 to 33°C. Egg development occurred over the entire range of temperatures, although a large decrease (30%) in hatching percentage was observed at 33°C. The 1st, 2nd, and 3rd instars were able to develop at all temperatures, but mortality was high (>50%) at >30°C. Conversely, a low percentage of mortality for the 4th instar and pupae was recorded at 30°C, but they failed to develop at <18°C. The developmental time of the 4th instar accounted for >50% of the total larval period at all temperatures. Considering developmental time and survival, the most favorable temperature range appeared to be 23-26°C. Both linear and nonlinear (Logan type III) models provided a reliable fit of developmental rates versus temperature for all immature stages. To complete development from egg to adult 545 DD above a development threshold of 16.7°C were needed. Yet the nonlinear model can describe more accurately (r² > 0.96) the development from egg to adult, particularly at the high (27.4°C) and low-temperature (15.3°C) thresholds. The potential of these models to predict the phenology of this pest are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Pedro Castañera, Vicente Marco

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aubeonymus mariaefranciscae	Beet/sugarbeet (Beta vulgaris)	Spain (continental)