ABSTRACT. The aim of this study was to determine the optimal larval age for exposing Anastrepha fraterculus (Wiedemann) to Diachasmimorpha longicaudata. Cryptic Species of the Anastrepha fraterculus Complex (Diptera: Tephritidae): A Multivariate Approach for the Recognition of South American Morphotypes. Abstract. Following the introduction of apples in Brazil in the early s, Anastrepha fraterculus (Wiedemann) has become a major pest. We present a study On.


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There was no oviposition in lemon fruits by either species Table anastrepha fraterculus. This behavior was also recorded when the fruits were offered in pairs Table 2.

Current knowledge of the species complex Anastrepha fraterculus (Diptera, Tephritidae) in Brazil

In no-choice anastrepha fraterculus, there was no significant difference in frequency of oviposition in orange or tangerine by either A. In lemon, there was no oviposition by either species of fruit fly.

Infestation indices anastrepha fraterculus this stage were 0. The duration of the egg-to-adult period of A.

Anastrepha fraterculus (South American fruit fly)

The pre-oviposition period of A. Females of both A.

Male longevity was on average Effects of the presence of lemon on oviposition by Anastrepha fraterculus and Ceratitis capitata when offered in combination with orange or tangerine.

Discussion Oviposition in choice tests for tangerine and orange anastrepha fraterculus no influence of the presence of lemon anastrepha fraterculus in the choice of the host by A.

Florida Entomologist

Fruiting of Navelina orange and Siciliano lemon anastrepha fraterculus in the same period Feb to Jul. Therefore, there may be a preference for oviposition in orange when these citrus cultivars are found in the same site. Thus, females of C.

  • Current knowledge of the species complex Anastrepha fraterculus (Diptera, Tephritidae) in Brazil
  • Anastrepha fraterculus (South American fruit fly)
  • South American fruit fly - Anastrepha fraterculus (Wiedemann)
  • Background

Also, Salvatore et al. However, they reported that infestation of A.

The preference of tephritid females for orange and tangerine fruits may be related to the suitability of the hosts for their offspring. Although Quayle attributes the non-acceptance of lemon for oviposition by Tephritidae to fruit pulp acidity, other authors believe that lemon pulp can be suitable for larval development and the non-acceptance would be linked to volatile anastrepha fraterculus in the fruit skin Ruiz et al.

However, Salvatore et al. The authors attributed the high mortality to the combined action of egg encapsulation in essential oil glands of the flavedo and the toxicity of the albedo.

However, the relationship of fruit acidity anastrepha fraterculus the development of fruit flies has not yet been demonstrated. We examined the role of long- and short-range pheromones male-produced volatiles and cuticular hydrocarbons, respectivelytheir implications in sexual isolation, and their possible use for chemotaxonomic differentiation of the putative species of the Af complex.

South American fruit fly - Anastrepha fraterculus (Wiedemann)

In Brazil, Anastrepha fraterculus is one of the anastrepha fraterculus important polyphagous pests infesting about 70 host plant species Zucchi Thoracic and abdominal segments: Dorsal spinules occasionally on A1-A3, but absent from A4-A8.

Creeping welts with rows of small spinules. A8 with dorsal and sensilla well-developed; intermediate areas obvious, with large sensilla; ventral sensilla present.


Top of page The distribution in this summary table is based on all the information available. Haldane's rule and other aspects of reproductive isolation observed in the Anastrepha fraterculus complex Diptera: Genetics anastrepha fraterculus Molecular Biology