Revista Brasileira de Entomologia (2003) 47, 415-420

Flávio Roberto Mello Garcia, Jocélia Vargas Campos and Elio Corseuil (2003)
Flutuação populacional de Anastrepha fraterculus (Wiedemann, 1830) (Diptera, Tephritidae) na Região Oeste de Santa Catarina, Brasil
[Population fluctuation of Anastrepha fraterculus (Wiedemann, 1830) (Diptera, Tephritidae) in. the Western Region of Santa Catarina State, Brazil]
Revista Brasileira de Entomologia 47 (3), 415-420
Abstract: Fruit flies are the major pests in fruit orchards and require a frequent insecticide aplication control, which increases production cost and chemical residues in fruits. Adults of Anastrepha fraterculus were sampled from twelve peach, plum, orange, tangerine and acid lime orchards in four counties in the Western Region of Santa Catarina. Modified McPhail plastic traps, baited with glucose 10%, were used to collect the flies from October 1998 to September 2000. Trap monitoring, bait replacement and fruit flies sorting by species and sex were done weekly. A total of 4,164 specimens of A. fraterculus was collected and highest population was registered in the county of Chapecó (64,8% of all sampled flies). Adults were collected all year long, with the highest population peaks occurring from December and January, although the fluctuation was different for each fruit species due to their particular phenology and in different years. Positive correlation among temperature, atmospheric humidity and population levels of adults of A. fraterculus was observed. According to the degree days obtained for each year, 4851.9, 4632.9 and 4983.7, respectively in 1998, 1999 and 2000, it was established that A. fraterculus could present an average of 11.2 generations a year.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): Flávio Roberto Mello Garcia

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anastrepha fraterculus	Citrus (genus)	Brazil (south)
	Anastrepha fraterculus	Peach/nectarine (Prunus persica)	Brazil (south)
	Anastrepha fraterculus	Plum/prune (Prunus domestica)	Brazil (south)