The suitability of mature green ‘Maradol’ papaya as a host of Anastrepha ludens (Loew) was studied under field and laboratory conditions. Field tests were conducted on commercial-ripened and spot-ripened fruit in two orchards and during two seasons in the state of Chiapas. Fruits at exportation ripeness are in “commercial ripeness,” while fruits that are harvested immediately preceding exportation ripeness are in “spot ripeness.” The field tests consisted of forced infestation experiments that evaluated papayas at two ripeness stages: the commercial- or exportation-ripened fruit (green fruits with one or two yellow stripes) and fruit before exportation ripeness called “spot ripeness.” These tests were conducted in two orchards and during two seasons in the state of Chiapas, Mexico. Laboratory trials were performed with commercial-ripened fruit only. Fruit from four different postharvest periods (3, 24, 48, and 72 h) were exposed to groups of gravid flies. No larvae emerged from the fruit that was collected in the field experiments. However, some larvae and several fertile flies were obtained from the commercial-ripened fruit 72 h postharvest but not 3, 24, and 48 h postharvest in the laboratory. The results of this study indicate that the commercially ripe fruits of papaya Maradol were resistant to or free from infestation of A. ludens flies under field conditions, though these fruits must be considered nonnatural, conditional host because they became infested in the laboratory.
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1 October 2014
Evaluation of the Host Status of Mature Green Papayas ‘Maradol’ for the Mexican Fruit Fly (Diptera: Tephritidae)
José Arredondo,
Lia Ruiz,
Francisco Díaz-Fleischer
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Journal of Economic Entomology
Vol. 107 • No. 5
October 2014
Vol. 107 • No. 5
October 2014
Carica papaya
host
infestation
oviposition
pest