Thermal requirements for preimaginal development of the strawberry leafroller (Lepidoptera: Tortricidae)

A. D. Gabriel; J. J. Obrycki

doi:10.1093/ee/19.2.339

Thermal requirements for preimaginal development of the strawberry leafroller (Lepidoptera: Tortricidae)

A. D. Gabriel, J. J. Obrycki

Entomology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Preimaginal development rates (egg, larval, pupal, and egg to adult) for the strawberry leafroller, Ancylis comptana (Froelich), were determined at six constant temperatures: 14, 18, 22, 26, 30, and 34°C (±2°, 16:8 [L:D]). Total development was fastest at 30° (22.3 ± 0.2 d) and 26°C (28.1 ± 0.3 d); 108.5 ± 9.6 d were required for total development at 14°C. Survival was >75% between 18 and 30°C, but decreased to 31% at 14 and 34°C. Based on a linear model of the temperature-developmental rate relationship, K and t values were 78 DD (degree-days) above 10.3° for eggs, 254 DD above 9.7° for larvae, 100 DD above 10.9° for pupae, and 431 DD above 10.2°C for total preimaginal development. A four-parameter biophysical model of the temperature-development relationship indicated that high temperature inhibition occurred from 29 to 33°C for the preimaginallife stages. Field development of second- and third-generation egg and larval stages was predicted within three calendar days. Management of the strawberry leafroller is greatly facilitated by predicting egg hatch to synchronize control measures with the first instars, which do not exhibit leaf-rolling behavior.

Original language	English
Pages (from-to)	339-344
Number of pages	6
Journal	Environmental Entomology
Volume	19
Issue number	6
DOIs	https://doi.org/10.1093/ee/19.2.339
State	Published - Dec 1 1990

Bibliographical note

Publisher Copyright:
© 1990 Entomological Society of America.

Funding

We thank Mark F. Bryan, Iowa State University, and Hex A. Bastian, Hendricksen Company-The Care of Trees, Chicago, for statistical asSistance. We thank Leslie C. Lewis, USDA-ARS, and Larry P. Pedigo, Iowa State University, for their critical review of the manuscript. This research was supported by grant 88-13 from the Leopold Center for Sustainable Agriculture, Iowa State University and an Iowa State University Research Grant, through the Iowa State University Achievement Foundation. This is journal paper J-13426 of the Iowa Agriculture and Home Economics Experiment Station, Ames; project 2755.

Funders	Funder number
Iowa State University Achievement Foundation
Iowa State University
Leopold Center for Sustainable Agriculture, Iowa State University

Keywords

Ancylis comptana
Insecta
Integrated pest management
Temperature-development relationship

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Insect Science

Access to Document

10.1093/ee/19.2.339

Cite this

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title = "Thermal requirements for preimaginal development of the strawberry leafroller (Lepidoptera: Tortricidae)",

abstract = "Preimaginal development rates (egg, larval, pupal, and egg to adult) for the strawberry leafroller, Ancylis comptana (Froelich), were determined at six constant temperatures: 14, 18, 22, 26, 30, and 34°C (±2°, 16:8 [L:D]). Total development was fastest at 30° (22.3 ± 0.2 d) and 26°C (28.1 ± 0.3 d); 108.5 ± 9.6 d were required for total development at 14°C. Survival was >75% between 18 and 30°C, but decreased to 31% at 14 and 34°C. Based on a linear model of the temperature-developmental rate relationship, K and t values were 78 DD (degree-days) above 10.3° for eggs, 254 DD above 9.7° for larvae, 100 DD above 10.9° for pupae, and 431 DD above 10.2°C for total preimaginal development. A four-parameter biophysical model of the temperature-development relationship indicated that high temperature inhibition occurred from 29 to 33°C for the preimaginallife stages. Field development of second- and third-generation egg and larval stages was predicted within three calendar days. Management of the strawberry leafroller is greatly facilitated by predicting egg hatch to synchronize control measures with the first instars, which do not exhibit leaf-rolling behavior.",

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N2 - Preimaginal development rates (egg, larval, pupal, and egg to adult) for the strawberry leafroller, Ancylis comptana (Froelich), were determined at six constant temperatures: 14, 18, 22, 26, 30, and 34°C (±2°, 16:8 [L:D]). Total development was fastest at 30° (22.3 ± 0.2 d) and 26°C (28.1 ± 0.3 d); 108.5 ± 9.6 d were required for total development at 14°C. Survival was >75% between 18 and 30°C, but decreased to 31% at 14 and 34°C. Based on a linear model of the temperature-developmental rate relationship, K and t values were 78 DD (degree-days) above 10.3° for eggs, 254 DD above 9.7° for larvae, 100 DD above 10.9° for pupae, and 431 DD above 10.2°C for total preimaginal development. A four-parameter biophysical model of the temperature-development relationship indicated that high temperature inhibition occurred from 29 to 33°C for the preimaginallife stages. Field development of second- and third-generation egg and larval stages was predicted within three calendar days. Management of the strawberry leafroller is greatly facilitated by predicting egg hatch to synchronize control measures with the first instars, which do not exhibit leaf-rolling behavior.

AB - Preimaginal development rates (egg, larval, pupal, and egg to adult) for the strawberry leafroller, Ancylis comptana (Froelich), were determined at six constant temperatures: 14, 18, 22, 26, 30, and 34°C (±2°, 16:8 [L:D]). Total development was fastest at 30° (22.3 ± 0.2 d) and 26°C (28.1 ± 0.3 d); 108.5 ± 9.6 d were required for total development at 14°C. Survival was >75% between 18 and 30°C, but decreased to 31% at 14 and 34°C. Based on a linear model of the temperature-developmental rate relationship, K and t values were 78 DD (degree-days) above 10.3° for eggs, 254 DD above 9.7° for larvae, 100 DD above 10.9° for pupae, and 431 DD above 10.2°C for total preimaginal development. A four-parameter biophysical model of the temperature-development relationship indicated that high temperature inhibition occurred from 29 to 33°C for the preimaginallife stages. Field development of second- and third-generation egg and larval stages was predicted within three calendar days. Management of the strawberry leafroller is greatly facilitated by predicting egg hatch to synchronize control measures with the first instars, which do not exhibit leaf-rolling behavior.

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Thermal requirements for preimaginal development of the strawberry leafroller (Lepidoptera: Tortricidae)

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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