Evidence of a polymorphic life cycle in the hemlock woolly adelgid, Adelges tsugae (Homoptera: Adelgidae)
Hemlock woolly adelgid, Adelges tsugae Annand, has a polymorphic life cycle which involves hemlock, Tsuga and spruce, Picea . Studies in Connecticut revealed that about half of the offspring produced by the sistens during June of two consecutive years became wingless adult progrediens. These closely...
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Veröffentlicht in: | Annals of the Entomological Society of America 1989-01, Vol.82 (1), p.50-54 |
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description | Hemlock woolly adelgid, Adelges tsugae Annand, has a polymorphic life cycle which involves hemlock, Tsuga and spruce, Picea . Studies in Connecticut revealed that about half of the offspring produced by the sistens during June of two consecutive years became wingless adult progrediens. These closely resembled their mothers and remained on hemlock. The other half became winged adult sexupara and migrated to spruce where they produced eggs of the sexuales. However, none of the sexuales nymphs that hatched survived on any of 12 spruce species tested. Adelges tsugae , a cool-loving species, completed most of its development on hemlock from October through June. During the warm summer months, this insect aestivated as a first-instar nymph on the young branches at the base of the needles. All three generations of A. tsugae on hemlock had six stages of development, which included the egg, four nymphal instars, and the adult. |
doi_str_mv | 10.1093/aesa/82.1.50 |
format | Article |
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Studies in Connecticut revealed that about half of the offspring produced by the sistens during June of two consecutive years became wingless adult progrediens. These closely resembled their mothers and remained on hemlock. The other half became winged adult sexupara and migrated to spruce where they produced eggs of the sexuales. However, none of the sexuales nymphs that hatched survived on any of 12 spruce species tested. Adelges tsugae , a cool-loving species, completed most of its development on hemlock from October through June. During the warm summer months, this insect aestivated as a first-instar nymph on the young branches at the base of the needles. All three generations of A. tsugae on hemlock had six stages of development, which included the egg, four nymphal instars, and the adult.</description><identifier>ISSN: 0013-8746</identifier><identifier>EISSN: 1938-2901</identifier><identifier>DOI: 10.1093/aesa/82.1.50</identifier><identifier>CODEN: AESAAI</identifier><language>eng</language><publisher>Lanham, MD: Entomological Society of America</publisher><subject>Adelges tsugae ; ADELGIDAE ; ANIMAL DEVELOPMENTAL STAGES ; Biological and medical sciences ; CHERMES FUNITECTUS ; CICLO VITAL ; CONNECTICUT ; CYCLE DE DEVELOPPEMENT ; DISTRIBUCION NATURAL ; DISTRIBUTION NATURELLE ; ETAPAS DEL DESARROLLO ANIMAL ; Fundamental and applied biological sciences. Psychology ; Homoptera ; Insecta ; Invertebrates ; LIFE CYCLE ; Life cycle. Embryology. Development ; NATURAL DISTRIBUTION ; NEW ENGLAND ; NOUVELLE-ANGLETERRE ; NUEVA INGLATERRA ; Physiology. 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Studies in Connecticut revealed that about half of the offspring produced by the sistens during June of two consecutive years became wingless adult progrediens. These closely resembled their mothers and remained on hemlock. The other half became winged adult sexupara and migrated to spruce where they produced eggs of the sexuales. However, none of the sexuales nymphs that hatched survived on any of 12 spruce species tested. Adelges tsugae , a cool-loving species, completed most of its development on hemlock from October through June. During the warm summer months, this insect aestivated as a first-instar nymph on the young branches at the base of the needles. All three generations of A. tsugae on hemlock had six stages of development, which included the egg, four nymphal instars, and the adult.</description><subject>Adelges tsugae</subject><subject>ADELGIDAE</subject><subject>ANIMAL DEVELOPMENTAL STAGES</subject><subject>Biological and medical sciences</subject><subject>CHERMES FUNITECTUS</subject><subject>CICLO VITAL</subject><subject>CONNECTICUT</subject><subject>CYCLE DE DEVELOPPEMENT</subject><subject>DISTRIBUCION NATURAL</subject><subject>DISTRIBUTION NATURELLE</subject><subject>ETAPAS DEL DESARROLLO ANIMAL</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Homoptera</subject><subject>Insecta</subject><subject>Invertebrates</subject><subject>LIFE CYCLE</subject><subject>Life cycle. Embryology. Development</subject><subject>NATURAL DISTRIBUTION</subject><subject>NEW ENGLAND</subject><subject>NOUVELLE-ANGLETERRE</subject><subject>NUEVA INGLATERRA</subject><subject>Physiology. Development</subject><subject>PICEA</subject><subject>POLIMORFISMO</subject><subject>POLYMORPHISM</subject><subject>POLYMORPHISME</subject><subject>STADE DE DEVELOPPEMENT ANIMAL</subject><subject>TSUGA CANADENSIS</subject><issn>0013-8746</issn><issn>1938-2901</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNo9kU1PGzEQhi3USqSht5568gFVILFhvLbZNTeE-JKQemg5W4N3nLh44629AeXfs1EQpxlpnnkO78vYDwELAUaeIxU8b-uFWGg4YDNhZFvVBsQXNgMQsmobdXHIvpXyDwCUlPWMhZvX0NHaEU-eIx9S3PYpD6vgeAyeuNu6SDys-bgivqI-JvfC31KKccuxo7gM3Rm_2i1U-Fg2SyR-cp_6NIyU8XJ_Ch3S6RH76jEW-v4x5-zp9ubv9X31-Pvu4frqsXK1UmMljRfPQiitGm18p5EulO-E9so1HpFACalbDZ6eodatcMKb1iijAaSUTso5-7X3Djn931AZbR-KoxhxTWlTrNBKiroxE3i2B11OpWTydsihx7y1AuwuT7vL07a1FVbDhB9_eLE4jD7j2oXy-dNMyl3Ic_Zzj3lMFpd5Qp7-tFMJWoJ8B7zifTg</recordid><startdate>198901</startdate><enddate>198901</enddate><creator>McClure, M.S</creator><general>Entomological Society of America</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7SS</scope><scope>C1K</scope></search><sort><creationdate>198901</creationdate><title>Evidence of a polymorphic life cycle in the hemlock woolly adelgid, Adelges tsugae (Homoptera: Adelgidae)</title><author>McClure, M.S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c244t-39f1b11454759fd5ae64fd15f4c7faae04135850feb02581c1f98949500333c33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Adelges tsugae</topic><topic>ADELGIDAE</topic><topic>ANIMAL DEVELOPMENTAL STAGES</topic><topic>Biological and medical sciences</topic><topic>CHERMES FUNITECTUS</topic><topic>CICLO VITAL</topic><topic>CONNECTICUT</topic><topic>CYCLE DE DEVELOPPEMENT</topic><topic>DISTRIBUCION NATURAL</topic><topic>DISTRIBUTION NATURELLE</topic><topic>ETAPAS DEL DESARROLLO ANIMAL</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Homoptera</topic><topic>Insecta</topic><topic>Invertebrates</topic><topic>LIFE CYCLE</topic><topic>Life cycle. Embryology. Development</topic><topic>NATURAL DISTRIBUTION</topic><topic>NEW ENGLAND</topic><topic>NOUVELLE-ANGLETERRE</topic><topic>NUEVA INGLATERRA</topic><topic>Physiology. Development</topic><topic>PICEA</topic><topic>POLIMORFISMO</topic><topic>POLYMORPHISM</topic><topic>POLYMORPHISME</topic><topic>STADE DE DEVELOPPEMENT ANIMAL</topic><topic>TSUGA CANADENSIS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McClure, M.S</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Annals of the Entomological Society of America</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McClure, M.S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evidence of a polymorphic life cycle in the hemlock woolly adelgid, Adelges tsugae (Homoptera: Adelgidae)</atitle><jtitle>Annals of the Entomological Society of America</jtitle><date>1989-01</date><risdate>1989</risdate><volume>82</volume><issue>1</issue><spage>50</spage><epage>54</epage><pages>50-54</pages><issn>0013-8746</issn><eissn>1938-2901</eissn><coden>AESAAI</coden><abstract>Hemlock woolly adelgid, Adelges tsugae Annand, has a polymorphic life cycle which involves hemlock, Tsuga and spruce, Picea . Studies in Connecticut revealed that about half of the offspring produced by the sistens during June of two consecutive years became wingless adult progrediens. These closely resembled their mothers and remained on hemlock. The other half became winged adult sexupara and migrated to spruce where they produced eggs of the sexuales. However, none of the sexuales nymphs that hatched survived on any of 12 spruce species tested. Adelges tsugae , a cool-loving species, completed most of its development on hemlock from October through June. During the warm summer months, this insect aestivated as a first-instar nymph on the young branches at the base of the needles. All three generations of A. tsugae on hemlock had six stages of development, which included the egg, four nymphal instars, and the adult.</abstract><cop>Lanham, MD</cop><pub>Entomological Society of America</pub><doi>10.1093/aesa/82.1.50</doi><tpages>5</tpages></addata></record> |
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issn | 0013-8746 1938-2901 |
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subjects | Adelges tsugae ADELGIDAE ANIMAL DEVELOPMENTAL STAGES Biological and medical sciences CHERMES FUNITECTUS CICLO VITAL CONNECTICUT CYCLE DE DEVELOPPEMENT DISTRIBUCION NATURAL DISTRIBUTION NATURELLE ETAPAS DEL DESARROLLO ANIMAL Fundamental and applied biological sciences. Psychology Homoptera Insecta Invertebrates LIFE CYCLE Life cycle. Embryology. Development NATURAL DISTRIBUTION NEW ENGLAND NOUVELLE-ANGLETERRE NUEVA INGLATERRA Physiology. Development PICEA POLIMORFISMO POLYMORPHISM POLYMORPHISME STADE DE DEVELOPPEMENT ANIMAL TSUGA CANADENSIS |
title | Evidence of a polymorphic life cycle in the hemlock woolly adelgid, Adelges tsugae (Homoptera: Adelgidae) |
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