BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA
Abstract The balsam woolly aphid, Adelges piceae (Ratz.), in Newfoundland is dimorphic and has three generations a year in the crowns of balsam fir trees. Two generations of the sistens, or diapausing form, predominate. Progredientes are more common than elsewhere in North America and occur on nearl...
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Language: | English |
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Cambridge University Press (CUP)
1971
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Online Access: | http://dx.doi.org/10.4039/ent1031411-10 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00047982 |
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crcambridgeupr:10.4039/ent1031411-10 2023-05-15T17:22:16+02:00 BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA Bryant, D. G. 1971 http://dx.doi.org/10.4039/ent1031411-10 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00047982 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Canadian Entomologist volume 103, issue 10, page 1411-1420 ISSN 0008-347X 1918-3240 Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology journal-article 1971 crcambridgeupr https://doi.org/10.4039/ent1031411-10 2023-02-24T07:13:11Z Abstract The balsam woolly aphid, Adelges piceae (Ratz.), in Newfoundland is dimorphic and has three generations a year in the crowns of balsam fir trees. Two generations of the sistens, or diapausing form, predominate. Progredientes are more common than elsewhere in North America and occur on nearly all parts of a branch. They do not mature on current needles. The ratio of progredientes to sistentes is about 1:40 in balsam fir flowering years and 1:80 in non-flowering years. Aphid development in the spring is earliest at flowered internodes, 11 to 14 days later at 2-year-old nodes, a further 4 to 8 days later at older nodes, and latest at the shoot tips. Intra-crown and inter-tree differences in aphid development are small but measurable. Stratification of the tree crown is required for sampling during the first aphid generation. Article in Journal/Newspaper Newfoundland Cambridge University Press (via Crossref) Needles The ENVELOPE(-70.967,-70.967,-68.950,-68.950) The Canadian Entomologist 103 10 1411 1420 |
institution |
Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
spellingShingle |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology Bryant, D. G. BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
topic_facet |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
description |
Abstract The balsam woolly aphid, Adelges piceae (Ratz.), in Newfoundland is dimorphic and has three generations a year in the crowns of balsam fir trees. Two generations of the sistens, or diapausing form, predominate. Progredientes are more common than elsewhere in North America and occur on nearly all parts of a branch. They do not mature on current needles. The ratio of progredientes to sistentes is about 1:40 in balsam fir flowering years and 1:80 in non-flowering years. Aphid development in the spring is earliest at flowered internodes, 11 to 14 days later at 2-year-old nodes, a further 4 to 8 days later at older nodes, and latest at the shoot tips. Intra-crown and inter-tree differences in aphid development are small but measurable. Stratification of the tree crown is required for sampling during the first aphid generation. |
format |
Article in Journal/Newspaper |
author |
Bryant, D. G. |
author_facet |
Bryant, D. G. |
author_sort |
Bryant, D. G. |
title |
BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
title_short |
BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
title_full |
BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
title_fullStr |
BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
title_full_unstemmed |
BALSAM WOOLLY APHID, ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE), SEASONAL AND SPATIAL DEVELOPMENT IN CROWNS OF BALSAM FIR, ABIES BALSAMEA |
title_sort |
balsam woolly aphid, adelges piceae (homoptera: phylloxeridae), seasonal and spatial development in crowns of balsam fir, abies balsamea |
publisher |
Cambridge University Press (CUP) |
publishDate |
1971 |
url |
http://dx.doi.org/10.4039/ent1031411-10 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00047982 |
long_lat |
ENVELOPE(-70.967,-70.967,-68.950,-68.950) |
geographic |
Needles The |
geographic_facet |
Needles The |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
The Canadian Entomologist volume 103, issue 10, page 1411-1420 ISSN 0008-347X 1918-3240 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/ent1031411-10 |
container_title |
The Canadian Entomologist |
container_volume |
103 |
container_issue |
10 |
container_start_page |
1411 |
op_container_end_page |
1420 |
_version_ |
1766108802901344256 |