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Registro Completo |
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
10/01/2010 |
Data da última atualização: |
25/09/2013 |
Autoria: |
RADWAN, Z.; LOVEI, G. L. |
Título: |
Distribution and bionomics of ladybird beetles (Col., Coccinellidae) living in an apple orchard near Budapest, Hungary. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Zeitschrift fur Angewandte Entomologie, Berlin, v. 94, n. 2, p. 169-175, 1982. |
Idioma: |
Inglês |
Conteúdo: |
Field observations were taken in the apple orchard of the Research Institute for Plant Protection at Juliamajor near Budapest, to monitor the occurrence and activity of ladybird beetles and their developmental stages.
We found 620 individual adults of 14 species. The most abundant species were Coccinella septempunctata, Adalia bipunctata, Adonia variegata, and Exochomus quadripustulatus. Adult abundance ratios in treated vs. untreated blocks were 1: 3.28. C. septempunctata and A. bipunctata were relatively more common to the treated block. Abundance curves showed two peaks, in May and in August. Egg laying began at Mid-May. Most eggs were found on the abaxial surface of the leaves. Five species of larvae were found, mostly A. bipunctata, which was considered the most important aphid predator. We found C. septempunctata larvae and pupae on the weed cover under the trees when they were absent from the canopy. Adult microhabitats reflected feeding preferences: E. quadripustulatus was found mainly on the trunk and branches (70.2%) while A. bipunctata on leaves (90.3%).
Community structure was identical to earlier findings (Lövei 1981). Observation was superior to beating: the latter collected about 30% of the beetles observed on the canopy at the same time. |
Palavras-Chave: |
Journal of Applied Entomology. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01769naa a2200145 a 4500 001 1835311 005 2013-09-25 008 1982 bl --- 0-- u #d 100 1 $aRADWAN, Z. 245 $aDistribution and bionomics of ladybird beetles (Col., Coccinellidae) living in an apple orchard near Budapest, Hungary. 260 $c1982 520 $aField observations were taken in the apple orchard of the Research Institute for Plant Protection at Juliamajor near Budapest, to monitor the occurrence and activity of ladybird beetles and their developmental stages. We found 620 individual adults of 14 species. The most abundant species were Coccinella septempunctata, Adalia bipunctata, Adonia variegata, and Exochomus quadripustulatus. Adult abundance ratios in treated vs. untreated blocks were 1: 3.28. C. septempunctata and A. bipunctata were relatively more common to the treated block. Abundance curves showed two peaks, in May and in August. Egg laying began at Mid-May. Most eggs were found on the abaxial surface of the leaves. Five species of larvae were found, mostly A. bipunctata, which was considered the most important aphid predator. We found C. septempunctata larvae and pupae on the weed cover under the trees when they were absent from the canopy. Adult microhabitats reflected feeding preferences: E. quadripustulatus was found mainly on the trunk and branches (70.2%) while A. bipunctata on leaves (90.3%). Community structure was identical to earlier findings (Lövei 1981). Observation was superior to beating: the latter collected about 30% of the beetles observed on the canopy at the same time. 653 $aJournal of Applied Entomology 700 1 $aLOVEI, G. L. 773 $tZeitschrift fur Angewandte Entomologie, Berlin$gv. 94, n. 2, p. 169-175, 1982.
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