Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae)
Recently, the abundant occurrence of galls of Contarinia petioli (Kieffer) was noted on Populus tremula in the Brno region and elsewhere in southern Moravia. The bionomics and cecidogenesis of the gall midge was studied on 5 to 15-year-old aspens in Forest District Bílovice nad Svitavou, Training Fo...
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| Format: | Article |
| Language: | English |
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Mendel University Press
2010-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
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| Online Access: | https://acta.mendelu.cz/58/2/0259/ |
| _version_ | 1817993567150276608 |
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| author | Jaroslav Urban |
| author_facet | Jaroslav Urban |
| author_sort | Jaroslav Urban |
| collection | DOAJ |
| description | Recently, the abundant occurrence of galls of Contarinia petioli (Kieffer) was noted on Populus tremula in the Brno region and elsewhere in southern Moravia. The bionomics and cecidogenesis of the gall midge was studied on 5 to 15-year-old aspens in Forest District Bílovice nad Svitavou, Training Forest Enterprise Masaryk Forest in Křtiny in 2007 and 2008. Imagoes fly there at the end of April and at the beginning of May. Females lay eggs in several partial clutches at 1 to 6(10) pieces. About 91% newly hatched larvae settle on petioles of unfolding leaves, about 8% on the bark of terminal parts of shoots and about 1% on leaf blades. By means of sucking the larvae of the 1st and 2nd instars galls are created in the 1st half of May. Larvae of the 3rd instar occur in galls from the 20th May when galls are grown-up. Larvae abandon the galls in the 1st decade of June through an oval hole 0.6 × 0.4 mm in diameter. Galls are on average 6 mm long, 5.4 mm wide and 5.1 mm high. If they are localized within a short distance of each other then often create formations up to 17 × 11 × 9 mm in size. There are 1 to 6(10) chambers in galls and in each of them, only one larva develops. The paper deals in detail with the differentiation of galls including chambers as well as natural enemies of the gall midge. Torymus quercinus Boh., T. cultrans Graham & Gijswijt (Torymidae) and Tetrastichus sp. (Eulophidae) rank among natural enemies of larvae in galls.1 |
| first_indexed | 2024-04-14T01:41:38Z |
| format | Article |
| id | doaj.art-ad9a947424fc4ef4bf24d9d3fd31b8d2 |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-04-14T01:41:38Z |
| publishDate | 2010-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-ad9a947424fc4ef4bf24d9d3fd31b8d22022-12-22T02:19:44ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102010-01-0158225928010.11118/actaun201058020259Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae)Jaroslav Urban0Ústav ochrany lesů a myslivosti, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaRecently, the abundant occurrence of galls of Contarinia petioli (Kieffer) was noted on Populus tremula in the Brno region and elsewhere in southern Moravia. The bionomics and cecidogenesis of the gall midge was studied on 5 to 15-year-old aspens in Forest District Bílovice nad Svitavou, Training Forest Enterprise Masaryk Forest in Křtiny in 2007 and 2008. Imagoes fly there at the end of April and at the beginning of May. Females lay eggs in several partial clutches at 1 to 6(10) pieces. About 91% newly hatched larvae settle on petioles of unfolding leaves, about 8% on the bark of terminal parts of shoots and about 1% on leaf blades. By means of sucking the larvae of the 1st and 2nd instars galls are created in the 1st half of May. Larvae of the 3rd instar occur in galls from the 20th May when galls are grown-up. Larvae abandon the galls in the 1st decade of June through an oval hole 0.6 × 0.4 mm in diameter. Galls are on average 6 mm long, 5.4 mm wide and 5.1 mm high. If they are localized within a short distance of each other then often create formations up to 17 × 11 × 9 mm in size. There are 1 to 6(10) chambers in galls and in each of them, only one larva develops. The paper deals in detail with the differentiation of galls including chambers as well as natural enemies of the gall midge. Torymus quercinus Boh., T. cultrans Graham & Gijswijt (Torymidae) and Tetrastichus sp. (Eulophidae) rank among natural enemies of larvae in galls.1https://acta.mendelu.cz/58/2/0259/Cecidomyiidae<i>Contarinia petioli</i>occurrencedevelopmentgallscontrol factors |
| spellingShingle | Jaroslav Urban Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis Cecidomyiidae <i>Contarinia petioli</i> occurrence development galls control factors |
| title | Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) |
| title_full | Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) |
| title_fullStr | Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) |
| title_full_unstemmed | Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) |
| title_short | Bionomics and cecidogenesis of Contarinia petioli (Kieffer) (Diptera, Cecidomyiidae) |
| title_sort | bionomics and cecidogenesis of contarinia petioli kieffer diptera cecidomyiidae |
| topic | Cecidomyiidae <i>Contarinia petioli</i> occurrence development galls control factors |
| url | https://acta.mendelu.cz/58/2/0259/ |
| work_keys_str_mv | AT jaroslavurban bionomicsandcecidogenesisofcontariniapetiolikiefferdipteracecidomyiidae |