Dormancy in the strawberry leafroller (Lepidoptera: Tortricidae)

J. J. Obrycki; A. D. Gabriel; C. J. Orr; J. W. Bing

doi:10.1093/ee/19.4.932

Dormancy in the strawberry leafroller (Lepidoptera: Tortricidae)

J. J. Obrycki, A. D. Gabriel, C. J. Orr, J. W. Bing

Entomology

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

2 Scopus citations

Abstract

A 2-yr study of strawberry leafroller, Ancylis comptana (Froelich), populations in central Iowa showed that short daylengths and low temperatures maintain diapause during autumn and that this autumnal diapause ends without a specific cue by the end of December. The completion of diapause does not require chilling. The postdiapause developmental rate of A. Comptana is linearly related to temperatures between 14 and 30°C; adult emergence requires 154 degree-days (DD) above a lower thermal threshold (t) of 10.5°C. Field cage studies demonstrated that 50% emergence of adult A. Comptana from overwintering larvae can be predicted accurately based upon the accumulation of approximately 150 DD > 10°C.

Original language	English
Pages (from-to)	932-936
Number of pages	5
Journal	Environmental Entomology
Volume	19
Issue number	6
DOIs	https://doi.org/10.1093/ee/19.4.932
State	Published - Dec 1 1990

Bibliographical note

Funding Information:
Catherine Tauber, Cornell University, Ithaca, N.Y., for their critical review of this manuscript. This research was supported by a grant (#88-13) from the Leopold Center for Sustainable Agriculture, Iowa State University, and an Iowa State University Research Grant funded through the Iowa State University Achievement Foundation. This is Journal Paper J-13722 of the Iowa Agriculture and Home EconomicsExperiment Station, Ames, Iowa. Project 2755.

Publisher Copyright:
© 1990 Entomological Society of America.

Keywords

Ancylis comptana
Diapause
Dormancy
Insecta

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Insect Science

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10.1093/ee/19.4.932

Cite this

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title = "Dormancy in the strawberry leafroller (Lepidoptera: Tortricidae)",

abstract = "A 2-yr study of strawberry leafroller, Ancylis comptana (Froelich), populations in central Iowa showed that short daylengths and low temperatures maintain diapause during autumn and that this autumnal diapause ends without a specific cue by the end of December. The completion of diapause does not require chilling. The postdiapause developmental rate of A. Comptana is linearly related to temperatures between 14 and 30°C; adult emergence requires 154 degree-days (DD) above a lower thermal threshold (t) of 10.5°C. Field cage studies demonstrated that 50% emergence of adult A. Comptana from overwintering larvae can be predicted accurately based upon the accumulation of approximately 150 DD > 10°C.",

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note = "Funding Information: Catherine Tauber, Cornell University, Ithaca, N.Y., for their critical review of this manuscript. This research was supported by a grant (#88-13) from the Leopold Center for Sustainable Agriculture, Iowa State University, and an Iowa State University Research Grant funded through the Iowa State University Achievement Foundation. This is Journal Paper J-13722 of the Iowa Agriculture and Home EconomicsExperiment Station, Ames, Iowa. Project 2755. Publisher Copyright: {\textcopyright} 1990 Entomological Society of America.",

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AU - Bing, J. W.

N1 - Funding Information: Catherine Tauber, Cornell University, Ithaca, N.Y., for their critical review of this manuscript. This research was supported by a grant (#88-13) from the Leopold Center for Sustainable Agriculture, Iowa State University, and an Iowa State University Research Grant funded through the Iowa State University Achievement Foundation. This is Journal Paper J-13722 of the Iowa Agriculture and Home EconomicsExperiment Station, Ames, Iowa. Project 2755. Publisher Copyright: © 1990 Entomological Society of America.

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N2 - A 2-yr study of strawberry leafroller, Ancylis comptana (Froelich), populations in central Iowa showed that short daylengths and low temperatures maintain diapause during autumn and that this autumnal diapause ends without a specific cue by the end of December. The completion of diapause does not require chilling. The postdiapause developmental rate of A. Comptana is linearly related to temperatures between 14 and 30°C; adult emergence requires 154 degree-days (DD) above a lower thermal threshold (t) of 10.5°C. Field cage studies demonstrated that 50% emergence of adult A. Comptana from overwintering larvae can be predicted accurately based upon the accumulation of approximately 150 DD > 10°C.

AB - A 2-yr study of strawberry leafroller, Ancylis comptana (Froelich), populations in central Iowa showed that short daylengths and low temperatures maintain diapause during autumn and that this autumnal diapause ends without a specific cue by the end of December. The completion of diapause does not require chilling. The postdiapause developmental rate of A. Comptana is linearly related to temperatures between 14 and 30°C; adult emergence requires 154 degree-days (DD) above a lower thermal threshold (t) of 10.5°C. Field cage studies demonstrated that 50% emergence of adult A. Comptana from overwintering larvae can be predicted accurately based upon the accumulation of approximately 150 DD > 10°C.

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Dormancy in the strawberry leafroller (Lepidoptera: Tortricidae)

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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