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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 73, No. 2, 2013, pp. 196-201
Bioline Code: cj13030
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 73, No. 2, 2013, pp. 196-201

 en Fungi that cause rot in bunches of grape identified in adult fruit flies ( Anastrepha fraterculus check for this species in other resources ) (Diptera: Tephritidae)
Machota Jr., Ruben; Bortoli, Lígia C.; Botton, Marcos & Grützmacher, Anderson D.

Abstract

Anastrepha fraterculus check for this species in other resources (Wiedemann) is the main species of frugivorous insect that damages berries of table grape ( Vitis vinifera check for this species in other resources L.) in Southern Brazil. This study was conducted to isolate and identify the fungi associated with bunch rot present in the body of adults of A. fraterculus collected in a commercial vineyard. From January to February 2011, adults of A. fraterculus were collected from a commercial vineyard of green grapes using adapted McPhail traps. In laboratory, flies bodies were divided into four parts (head, legs, wings, and ovipositor) in Petri dishes with PDA medium to evaluate microorganisms associated. Six adult females of A. fraterculus collected in the field were also analyzed in a scanning electron microscope (SEM) to identify spores of fungi. Phytopathogenic microorganisms were found in all sectioned parts. Fungal spores were recorded adhered to the body of adult females of A. fraterculus. The main species of fungi found in the body parts of A. fraterculus were Cladosporium check for this species in other resources spp. (20.2% of the obtained colonies), Botrytis cinerea check for this species in other resources Pers. (12.9%), Colletotrichum check for this species in other resources spp. (10.1%), Penicillium check for this species in other resources spp. (10.1%), Fusarium check for this species in other resources spp. (7.7%), followed by Rhizopus check for this species in other resources spp., Trichoderma check for this species in other resources spp. and Aspergillus check for this species in other resources spp., suggesting that the insect can serve as a mechanical vector of spores increasing damage in the vineyards.

Keywords
Botrytis cinerea, grape diseases, Vitis vinifera

 
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