A multi-component systems approach is proposed to reduce the risk of oriental fruit fly infestation in ‘Sharwil’ avocados exported from Hawaii into the United States to an acceptable level. This systems approach is based on poor host status, limited distribution and low prevalence. Recent surveys suggest oriental fruit fly populations are naturally low in Hawaii’s small avocado orchards. Mainta...

Mate choice by males has been documented in many taxa including fruit flies (Drosophila spp.). It is still unclear, however, whether male mate choice varies much with age and one cannot readily predict the direction of change in male choosiness with age. We compared mate choice in young (1 day old) and mature (4 days old) male fruit flies (Drosophila melanogaster). Young males spent much less t...

Four fruit fly genera, Ichneumonosoma de Meijere, Pelmatops Enderlein, Pseudopelmatops Shiraki and Soita Walker, were studied and 19 species are recognized. Three new species, Soita infuscata Chen & Norrbom, Ichneumonosoma quadripunctata Chen & Freidberg, and I. triangularis Chen & Norrbom are described and illustrated. Ichneumonosoma and Soita are revised, and keys to all the species are provi...

The twenty-four species of Lonchaeidae (lance flies) known from Australia commonly breed in a wide variety of organic matter, including fruit and vegetables. The metallic-green tomato fly (Lamprolonchaea brouniana) is the best known species, being an agricultural pest. However its common name is also applied to other similar bright metallic goldengreen lance flies. Australian lance flies are ge...

Pathogenic Escherichia coli O157:H7, as well as nonpathogenic strains ATCC 11775 and ATCC 23716, grew exponentially in wounds on Golden Delicious apple fruit. The exponential growth occurred over a longer time period on fruit inoculated with a lower concentration of the bacterium than on fruit inoculated with a higher concentration. The bacterium reached the maximum population supported in the ...

Mercury, an environmental health hazard, is a neurotoxic heavy metal. In this study, the effect of methylmercury (MeHg) exposure was analyzed on sexual behavior in Drosophila melanogaster (fruit fly), because neurons play a vital role in sexual functions. The virgin male and female flies were fed a diet mixed with different concentrations of MeHg (28.25, 56.5, 113, 226, and 339 µM) for four day...

We determined whether immersion in 49 degrees C water for 20 min, a quarantine treatment developed for disinfestation of fruit flies in lychee, Litchi chinensis Sonn., and longan, Dimocarpus longan (Lourd.) Steud., exported from Hawaii, would also disinfest fruit of two species of Cryptophlebia. The pattern of tolerance to heat in Cryptophlebia illepida (Butler) was generally eggs < neonates < ...

Abstract Fruit fly ( Bactrocera sp) is one of the most harmful pests in fruit cultivation. This pest detrimental because it directly attacks agricultural products, namely produced by plants. Methyl eugenol an insect-attractant compound, especially for male flies. study was carried out from May to October 2022 determine number flies caught using methyl bait traps at dusung fruits four villages A...

Currently approved irradiation quarantine treatment doses for Bactrocera cucurbitae (Coquillet), melon fly; Ceratitis capitata (Wiedemann), Mediterranean fruit fly; and Bactrocera dorsalis (Hendel), oriental fruit fly, infesting fruits and vegetables for export from Hawaii to the continental United States are 210, 225, and 250 Gy, respectively. Irradiation studies were initiated to determine wh...