Biological Studies on the African Fig Fly, Zaprionus Indianus Gupta (Diptera: Drosophilidae)

Alawamleh, Amani; Katbeh‐Bader, Ahmad; Hassan, Naim; Al-Jboory, Ibrahim; D’Onghia, A.M.

doi:10.17707/agricultforest.62.4.08

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The number of generations per year varies from 12 to 16 (Karan et al., 2000; Setta and Carareto, 2005; Nava et al., 2007). Field and laboratory studies on Indian populations showed that Z. indianus overwinters in the egg stage and to a small extent as pupae (Alawamleh et al., 2016).…”

Section: Pest Categorisationmentioning

confidence: 99%

Pest categorisation of Zaprionus indianus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health performed a pest categorisation of Zaprionus indianus (Diptera: Drosophilidae), the African fig fly for the territory of the EU. This species successfully colonised the Indian subcontinent more than four decades ago, and more recently South and North America. Within the EU, the pest occurs in Cyprus, Malta, Portugal (Madeira) and Spain (Canary Islands and Andalusia). Z. indianus is not listed in Annex II of Commission Implementing Regulation (EU) 2019/ 2072. The larvae of this fly feed on more than 80 plant species both cultivated and non-cultivated. Females produce around 60-70 eggs. Egg laying mostly occurs in decaying fruit or fruit with injuries or mechanical damage. However, Z. indianus can oviposit on undamaged healthy fruit such as figs, strawberries and guavas which provide a potential pathway for entry into the EU. Lower temperature thresholds are around 9-10°C. Optimum development occurs at 28°C. The number of generations per year varies from 12 to 16. Climatic conditions in many EU member states and host plant availability in those areas are conducive for establishment. The introduction of Z. indianus is expected to have an economic impact in the EU especially on fig and strawberry production. Damage caused by other fruit flies (Drosophilidae and Tephritidae) could be increased by mixed infestations. Phytosanitary measures are available to reduce the likelihood of entry and further spread. Z. indianus satisfies all of the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

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Section: Pest Categorisationmentioning

confidence: 99%

Pest categorisation of Zaprionus indianus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

View full text Add to dashboard Cite

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“…The implementation of effective techniques for monitoring and controlling populations is essential to manage crop pests (Alawamleh et al., 2016; Montgomery et al., 2021). Chemical control is a commonly used technique, but its excessive use can lead to the development of resistance (Hu, 2020).…”

Section: Introductionmentioning

confidence: 99%

Geographical and sex‐specific effects of malathion insecticide selection in African fig fly Zaprionus indianus Gupta, 1970 (Diptera: Drosophilidae)

de Oliveira Rios,

Costa,

da Conceição Galego

2023

J Applied Entomology

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The African fig fly (AFF) Zaprionus indianus Gupta, 1970, is an invasive species that has caused significant damage to several monoculture crops since its introduction in the Brazilian territory, resulting losses for farmers and decrease of fruit productions. A way to manage fruit pests is the chemical control, which could act as a selective pressure against genetic variation in the insect populations. The esterases are detoxifying enzymes that can respond to the selection by insecticides, they are conserved in evolution, and are involved in the hydrolysis of esters, including insecticide degradation. Esterases can be identified by isoenzyme electrophoresis, which is a valuable tool for genetic, biochemical, and ecological studies, particularly in approaches with pest species. This experimental study aimed to evaluate survival and esterase polymorphisms at the Est2 and Est3 loci in three different geographical populations of Z. indianus from Brazil (Aracaju, Uberaba and Florianópolis) after exposition to organophosphate malathion. We identified patterns of sex‐specific genetic variation that indicate a response to insecticide exposition. These results indicated that the insecticide biological response in this species is sex‐dependent, providing relevant information about the AFF‐malathion interaction. This study may contribute to the development of more effective and sustainable management strategies for AFF control in Brazil using genetic and ecological approaches.

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