Development of
Platynota flavedana
and
P. idaeusalis
(Lepidoptera: Tortricidae) at Constant Temperatures in the Laboratory

David, P. J.; Horsburgh, R. L.; Holtzman, Golde I.

doi:10.1093/ee/18.1.15

Cited by 3 publications

(1 citation statement)

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“…The percentage of total Þrst brood moth ßight was graphed against the degree-day (base 7.2ЊC) (David et al 1989) accumulation from a bioÞx (Þrst sustained trap catch) for each of the study years, to determine whether accumulated degree-days reliably predicted percentage of ßight completed. Simple linear regression models (Minitab, Inc. 1998) were created of fruit injury on trap capture.…”

Section: Methodsmentioning

confidence: 99%

Tufted Apple Bud Moth (Lepidoptera: Tortricidae) Management Model for Processing Apples Based on Early Season Pheromone Trap Capture

Robertson

Hull

Calvin

2005

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Sixteen years of archived tufted apple bud moth, Platynota idaeusalis (Walker), trap capture data were compared with archived fruit injury data collected at the Penn State University Fruit Research and Extension Center to define the relationship of trap capture to fruit injury. Pheromone trap capture until 15 June was the best predictor of fruit injury at harvest. Using the regression equation of fruit injury on early season trap capture, and other assumptions about insecticide cost and fruit yield, a management model was developed for apple growers in the Mid-Atlantic region. When the model was tested on archived trap capture and fruit injury data, the results indicated that a grower would lose money on average by always treating and save money on average by never treating. By using the model, a grower could expect to save more money than by never treating. The model showed sensitivity to fruit price, insecticide price, and fruit yield.

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Section: Methodsmentioning

confidence: 99%

Tufted Apple Bud Moth (Lepidoptera: Tortricidae) Management Model for Processing Apples Based on Early Season Pheromone Trap Capture

Robertson

Hull

Calvin

2005

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Developmental Rate Isomorphy in Insects and Mites

Jaros̆ı́k¹,

Honěk²,

Dixon³

2002

The American Naturalist

144

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When the proportion of total developmental time spent in a particular developmental stage does not change with temperature, an organism shows "rate isomorphy." This is the case only if the lower developmental threshold is the same for all developmental stages. In this study, the incidence of rate isomorphy in seven species of mites and 342 species from 11 insect orders (some represented by several populations) was determined. Whether a species shows rate isomorphy or not was determined over a range of temperatures where the relationship between the rate of development and temperature is linear. Proportion of total developmental time spent in a particular stage was plotted against temperature and the existence of rate isomorphy inferred from a zero change in proportion. Rate isomorphy was detected in 243 (57%) of 426 populations. In the rest of the cases, rate isomorphy was violated by deviations in the proportion of time spent in a stage by an average of 0.2% (range 4.5E-06% to 2.8%) at the mean of the range of temperatures of all the data sets (11 degrees C). The violations occurred most frequently at the extremes of the linear phase, which is attributed to methodical biases, mortality at low temperatures, or too coarse an estimate of developmental time at high temperatures. Similarly, a meta-analysis also revealed an overall prevalence of rate isomorphy. Consequently, in insect and mite species, all the developmental stages appear to have the same population-specific lower developmental threshold. The existence of rate isomorphy could be of great practical importance, for example, in the timing of life-history events and in determining preadult thermal requirements. There are also indications that it may act as a phylogenetic constraint.

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Temperature-Dependent Development in Capital-Breeding Lepidoptera

Miller

2011

Journal of the Lepidopterists’ Society

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Development of Platynota flavedana and P. idaeusalis (Lepidoptera: Tortricidae) at Constant Temperatures in the Laboratory

Cited by 3 publications

References 0 publications

Tufted Apple Bud Moth (Lepidoptera: Tortricidae) Management Model for Processing Apples Based on Early Season Pheromone Trap Capture

Tufted Apple Bud Moth (Lepidoptera: Tortricidae) Management Model for Processing Apples Based on Early Season Pheromone Trap Capture

Developmental Rate Isomorphy in Insects and Mites

Temperature-Dependent Development in Capital-Breeding Lepidoptera

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