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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
30/05/2000 |
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Data da última atualização: |
30/05/2000 |
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Autoria: |
JONES, V. P.; FOLLETT, P. A.; MESSING, R. H.; BORTH, W. B.; HU, J. S.; ULLMAN, D. E. |
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Afiliação: |
USDA-ARS; University of Hawaii; University of California Davis. |
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Título: |
Effect of sophonia rufofascia (Homoptera: cicadellidae) on guava production in Hawaii |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Journal of Economic Entomology, v.91, n.3, p.693-698, Richmond, VA 23228, USA, 1998 |
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ISSN: |
0013-8746 |
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Idioma: |
Inglês |
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Conteúdo: |
Yield studies and polymerase chain reaction (PCR) examination of guava, Psidium guajava L., were performed to determine whether feeding by the leafhopper Sophonia rufofascia Kuoh and Kuoh or the presence of phytoplasmas were responsible for chlorosis. Insecticide treatments reduced leafhopper densities and chlorosis and increased yield 23% compared with untreated control trees. Treatment with the antibiotic oxytetracycline had no effect on symptom expression nor on yield of the trees. PCR using primers specific to sequences in the 16S ribosomal RNA of phytoplasmas did not reveal any phytoplasma involvement in trees showing chlorosis. Leafhopper feeding was not shown to affect guava juice pH or degrees brix (total soluble solids). |
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Palavras-Chave: |
Guava; Yield effects. |
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Thesaurus Nal: |
Phytoplasma; Sophonia rufofascia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01419naa a2200241 a 4500
001 1635709
005 2000-05-30
008 1998 bl uuuu u00u1 u #d
022 $a0013-8746
100 1 $aJONES, V. P.
245 $aEffect of sophonia rufofascia (Homoptera$bcicadellidae) on guava production in Hawaii
260 $c1998
520 $aYield studies and polymerase chain reaction (PCR) examination of guava, Psidium guajava L., were performed to determine whether feeding by the leafhopper Sophonia rufofascia Kuoh and Kuoh or the presence of phytoplasmas were responsible for chlorosis. Insecticide treatments reduced leafhopper densities and chlorosis and increased yield 23% compared with untreated control trees. Treatment with the antibiotic oxytetracycline had no effect on symptom expression nor on yield of the trees. PCR using primers specific to sequences in the 16S ribosomal RNA of phytoplasmas did not reveal any phytoplasma involvement in trees showing chlorosis. Leafhopper feeding was not shown to affect guava juice pH or degrees brix (total soluble solids).
650 $aPhytoplasma
650 $aSophonia rufofascia
653 $aGuava
653 $aYield effects
700 1 $aFOLLETT, P. A.
700 1 $aMESSING, R. H.
700 1 $aBORTH, W. B.
700 1 $aHU, J. S.
700 1 $aULLMAN, D. E.
773 $tJournal of Economic Entomology$gv.91, n.3, p.693-698, Richmond, VA 23228, USA, 1998
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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