The sassy mangoes : mango cultivars resistant to fruit flies

Issue Date

10-2017

Abstract

The Philippines is a major exporter of ‘Carabao mango’ in the world. In 2012-2014, the Institute of Plant Breeding started the field evaluation of different mango varieties for resistance to different insect pests. The potential resistance of different mango varieties, specifically to the mango fruit fly Bactrocera dorsalis (Hendel) were identified under field conditions. This resulted to three varieties with field resistance to fruit flies that had a less than 15% of the fruits infested. These were further identified to have potential resistance against the mango fruit fly. In 2015, a new study commenced to reconfirm the resistance of ‘Carabao’ and other mango varieties to the mango fruit fly. The mango genotypes were evaluated under laboratory conditions, wherein mango fruit samples were enclosed in a screen cage. Gravid female fruit flies were released and allowed to oviposit on their preferred mango variety. Seven field resistant mango varieties were further evaluated in the laboratory under caged conditions with laboratory-reared gravid female fruit flies. Attempts at oviposition and number of adults emerging from each fruit were recorded. Under laboratory conditions, the mango variety ‘Haden’ maintained its resistance while ‘Carabao’ 12-081 lost its resistance and was susceptible to mango fruit fly attack. ‘Tommy Atkins’, which was highly susceptible during the field evaluation, was least susceptible in a choice test under laboratory conditions.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

31

Issue

2

Page

168-169

Document Type

Article

College

College of Agriculture and Food Science (CAFS)

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

MANGOES; BACTROCERA DORSALIS; TEPHRITIDAE; FRUIT DAMAGING INSECTS; PEST OF PLANTS; PEST INSECTS; HOST PLANT RESISTANCE

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