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Registro de Plantas Hospedeiras (Cactaceae) e de Nova Forma de Disseminação de Diaspis echinocacti (Bouché) (Hemiptera: Diaspididae), Cochonilha-da-Palma-Forrageira, nos Estados de Pernambuco e Alagoas / Record of Host Plants (Cactaceae) and New Dissemination Strategy of Diaspis echinocacti (Bouché) (Hemiptera: Diaspididae), Prickly-Pear-Scale, in the States of Pernambuco and Alagoas, Brazil
Lima, Iracilda M. M; Gama, Noemia S.
  • Lima, Iracilda M. M; Univ Federal de Alagoas. BR
  • Gama, Noemia S; Univ Federal de Alagoas. BR
Neotrop. entomol ; 30(3): 479-481, Sept. 2001.
Article in Portuguese | LILACS | ID: lil-514386
ABSTRACT
Opuntia ficus-indica Mill. and Nopalea cochenillifera (L.) Lyons (Cactaceae) are alternative food sources for cattle in drought areas of the Northeastern Region of Brazil. Diaspis echinocacti (Bouché) is the unique pest of these Cactacea species and it was previously detected on the following native host plants Cereus jamacaru DC., Melocactus sp., Opuntia dillenii Haw. and O. inamoena K. Schum. The new record of native hosts are Cereus gounellei (Weber) Luetzelb., C. squamosus Gërke. and the exotic C. hildemannianus K. Schum., from drought areas; Pereskia grandifolia Haw. and Epiphyllum oxypetalum Haw., native species from tropical forest used as ornamental plants. D. echinocacti has not infested O. monacantha Haw. in the field and in laboratory bioessays. The dissemination of the neonate scale insect transported on the body surface of the predators Chilocorus nigrita (Fabricius) and Zagreus bimaculosus (Mulsant) Coccinellidae Chilocorinae) was registered for the first time.
RESUMO
Opuntia ficus indica Mill. e Nopalea cochenillifera (L.) Lyons (Cactaceae) representam fontes alternativas de alimento para o gado nas regiões secas do Nordeste do Brasil. Diaspis echinocacti (Bouché), único inseto-praga destas forrageiras, foi detectado inicialmente nas seguintes cactáceas nativas Cereus jamacaru DC., Melocactus sp., Opuntia dillenii Haw. e O. inamoena K. Schum. Os novos registros de plantas-hospedeiras são Cereus gounellei (Weber) Luetzelb., C. squamosus Gërke. (nativas) e C. hildemannianus K. Schum., exótica, todas provenientes de regiões secas; Pereskia grandifolia Haw. e Epiphyllum oxypetalum Haw., da floresta tropical e utilizadas como plantas ornamentais. D. echinocacti não foi observada em O. monacantha Haw. no campo, nem conseguiu se estabelecer em raquetes desta planta em condições de laboratório. A disseminação de ninfas neonatas da cochonilha transportadas no corpo dos predadores Chilocorus nigrita (Fabricius) e Zagreus bimaculosus (Mulsant) (Coccinellidae Chilocorinae) foi registrada pela primeira vez.

Full text: Available Index: LILACS (Americas) Country/Region as subject: South America / Brazil Language: Portuguese Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2001 Type: Article Affiliation country: Brazil Institution/Affiliation country: Univ Federal de Alagoas/BR

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Full text: Available Index: LILACS (Americas) Country/Region as subject: South America / Brazil Language: Portuguese Journal: Neotrop. entomol Journal subject: Biology / ZOOLOGIA Year: 2001 Type: Article Affiliation country: Brazil Institution/Affiliation country: Univ Federal de Alagoas/BR