Níveis de infestação de goiaba por Anastrepha zenildae Zucchi (Diptera: Tephritidae), em pomares comerciais do Norte de Minas Gerais

Abstract

Infestation Levels of Common Guava by Anastrepha zenildae Zucchi (Diptera: Tephritidae) in Commercial Groves of the North of Minas Gerais State ABSTRACT-The infestation levels by Anastrepha zenildae Zucchi in common guava (Psidium guajava L.) were evaluated. The surveys were carried out in commercial groves of three counties of the North of the State of Minas Gerais, Brazil, from January to April 1996. A. zenildae should be considered a species of economic importance in the region as infestation indices (larvae/kg and larvae/fruit) were higher than those obtained for A. sororcula Zucchi. Only these two species were obtained directly from guava fruits. Besides A. zenildae and A. sororcula, specimens of A. fraterculus (Wied.), A. obliqua (Macquart) and of a new species of Anastrepha were also collected in traps set in the area.

Susceptibility of guava genotypes to natural infestation by Anastrepha spp. (Diptera: Tephritidae) in the municipality of Monte Alegre do Sul, state of São Paulo, Brazil

“…No statistical differences were detected among the genotypes in terms of pupal viability (Table 2), whose means after four collections ranged from 25.8 to 50.9. In the north of Minas Gerais State, the tephritid pupal viability collected from guava under natural field infestation ranged from 2.8% to 100% depending on the fruit fly species (Canal et al 1998a).…”

“…The authors obtained 4.4 to 1082.7 puparia/ kg of guava. Canal et al (1998a) recovered A. zenildae and A. sororcula in guavas from north of the State of Minas Gerais (dry area), with a maximum of 116 larva/kg of fruits.…”

Moscas-das-frutas (Diptera: Tephritidae) no Semi-Árido do Rio Grande do Norte: plantas hospedeiras e índices de infestação

“…Entre as espécies de Anastrepha, A. zenildae infestou a maior diversidade de frutíferas. A goiaba e o juá são freqüentemente associados a A. zenildae (Araujo et al 1996, Canal D. et al 1998b. Essa espécie já tinha sido registrada como praga de goiaba no Rio Grande do Norte (Araujo & Zucchi 2003).…”

“…As infestações observadas em juá e cajarana foram menores do que as registradas no norte de Minas Gerais (94 e 55,5 pupários/kg, respectivamente) (Canal D. 1997 (Canal D. et al 1998b). Portanto, apesar de as infestações em juá, cajarana e goiaba serem consideráveis em Mossoró/Assu (RN), os índices foram menores do que em outras regiões do Brasil.…”

Species Diversity of Frugivorous Flies (Diptera: Tephritoidea) from Hosts in the Cerrado of the State of Mato Grosso do Sul, Brazil

“…sororcula, followed by A. turpiniae and A. striata, were more common in guava than A. zenildae, which infests largely guava in the semi-arid Northeast of Brazil (Araújo et al 2000, Canal et al 1998a. Also, in Nova Soure (BA), in a transition between Atlantic forest and the caatinga, most specimens of Anastrepha caught in traps were A. sororcula (A.S. Nascimento, pers.…”