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| Portalanza,Diego E.; Sanchez,Luis; Plúas,Marjorie; Felix,Imelda; Costa,Valmir A.; Dias-Pini,Nivia da Silva; Ferreira-Stafanous,Sheryl; Gómez-Torres,Mariuxi L.. |
| ABSTRACT First records of parasitoids attacking the Asian citrus psyllid in Ecuador. The objective of the current study was to investigate the presence of natural enemies of Diaphorina citri (Hemiptera: Liviidae) (the Asian citrus psyllid) in Ecuador. Incidence of parasitoid Diaphorencyrtus aligarhensis (Hymenoptera: Encyrtidae) was assessed between November 2015 and March 2016, in Letamendi, Febres-Cordero and Tarqui, urban districts of Guayaquil. Highest incidence of parasitism occurred in those regions and seasons of the year with the highest temperatures commensurate with increase of citrus plant shoots. Similar to their host, these parasitoids appear to have established in Ecuador by accident, and were not the result of purposeful introduction. This... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Diaphorencyrtus aligarhensis; Diaphorina citri; Endoparasitoid; Huanglongbing; Tamarixia radiata. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000200107 |
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| Dias-Pini,Nivia da Silva; Broglio,Sônia Maria Forti; Costa,Simone da Silva; Santos,Jakeline Maria dos; Guzzo,Elio Cesar. |
| Diatraea flavipennella (Box) (Lepidoptera, Crambidae) is one of the most destructive pests in sugarcane plantations in the Northeast Region of Brazil. Developmental characteristics and parasitism potential of the egg parasitoids Telenomus alecto Crawford (Hymenoptera, Scelionidae) and Trichogramma galloi Zucchi (Hymenoptera, Trichogrammatidae) were compared with the aim of selecting a suitable species for biological control of D. flavipennella. Both T. alecto and T. galloi developed well and were readily adapted to D. flavipennella eggs as host. Although, T. galloi presented higher viability, with more adults emerging per host egg and higher sex ratio, the developmental period (egg-adult) was shorter in T. alecto and female longevity was extended. In... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Biological control; Egg parasitoid; Parasitism capacity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400020 |
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| Santos,Adriano Jorge Nunes dos; Broglio,Sônia Maria Forti; Dias-Pini,Nivia da Silva; Souza,Leilianne Alves de; Barbosa,Tiago Jorge de Araújo. |
| The stingless bee Trigona spinipes (Fabricius, 1793) (Hymenoptera: Apidae) is an important pollinator for various crops, but constitutes an occasional pest of other plant species since it causes injury to leaves, stems, flowers and fruits while collecting nest materials. The aim of the present study was to determine the damage caused by T. spinipes to a broccoli (Brassica oleracea L. var. italica, Brassicaceae) growing on an organic farm. A significant number of plants (72.5 %) presented damaged inflorescences, while 39% of all of the inflorescences suffered some degree of injury. The activities of T. spinipes caused scarifications on the stems of the inflorescences, and these typically evolved to epidermal cicatrices up to 10 mm wide. In some cases, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trigona spinipes; Occasional pest; Pest control. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000400008 |
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