Anastrepha fraterculus (Wiedemann) is the main species of frugivorous insect that damages berries of table grape (Vitis vinifera 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 spp. (20.2% of the obtained colonies), Botrytis cinerea Pers. (12.9%), Colletotrichum spp. (10.1%), Penicillium spp. (10.1%), Fusarium spp. (7.7%), followed by Rhizopus spp., Trichoderma spp. and Aspergillus spp., suggesting that the insect can serve as a mechanical vector of spores increasing damage in the vineyards.

O objetivo deste trabalho foi descrever o desenvolvimento e reprodução de Ceratitis capitata (Diptera: Tephritidae) em frutos de caqui 'Fuyu', maçã 'Gala', pêssego 'Maciel' e uva 'Itália'. Foram feitas avaliações quanto a: duração e viabilidade do ovo, duração do estágio larval, peso de pupa, duração e viabilidade da pupa, duração do período ovo-adulto, razão sexual, período de pré-oviposição e oviposição, fecundidade diária e total e longevidade de machos e fêmeas. A maior duração do período ovo-adulto ocorreu em maçã, em consequência do aumento do estágio larval, seguido por uva, caqui e pêssego. Larvas que se alimentaram de pêssego apresentaram maior peso médio de pupa. A maior viabilidade pupal foi registrada em pêssego, equivalente à de uva e caqui. O período de pré-oviposição foi maior para fêmeas provenientes de maçã e uva. Fêmeas provenientes de pêssego apresentaram período de oviposição mais longo, além de maior fecundidade média diária e fecundidade total. A longevidade de adultos foi superior em insetos criados em pêssego. Frutos de pessegueiro são mais adequados para o desenvolvimento de C. capitata, em comparação aos de caqui, maçã e uva.

The objective of this work was to describe the development and reproduction of Ceratitis capitata (Diptera: Tephritidae) in fruit of 'Fuyu' persimmon, 'Gala' apple, 'Maciel' peach and 'Italy' grape. Evaluations were made for: egg duration and viability, duration of larval stage, pupa weight, pupal duration and viability, duration of egg-adult period, sex ratio, pre-oviposition and oviposition periods, daily and total fecundity, and longevity of males and females. The longer duration of the egg-adult period occurred in apple, due to the increase in larval stage, followed by grape, persimmon and peach. Larvae fed on peach had higher average pupal weight. The highest pupal viability was recorded in peach and was equivalent to that of grape and persimmon. The pre-oviposition period was higher for females from apple and grape. Females from peach had longer oviposition period, and higher daily average fecundity and total fertility. The longevity of adults was higher in insects reared on peach. Peach fruit are more suitable for the development of C. capitata, in comparison to persimmon, apple and grape.