Toxicological Studies of Organophosphate and Pyrethroid Insecticides for Controlling the Fruit Fly <I>Dacus ciliatus</I> (Diptera: Tephritidae)

The lesser pumpkin fly, Dacus ciliatus (Loew), is one of several fruit flies found in Africa and Asia which could be expected to become serious pests of Florida agricultural crops if introduced into this state. This species has not been intercepted in the United States, but prospects are likely for this to occur because of our heavy international traffic. This document is EENY-258 (originally published as DPI Entomology Circular 81), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: January 2002. https://edis.ifas.ufl.edu/in539

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An Integrated Decision Support System for Environmentally-Friendly Management of the Ethiopian Fruit Fly in Greenhouse Crops

Agronomy ◽

10.3390/agronomy9080459 ◽

2019 ◽

Vol 9 (8) ◽

pp. 459 ◽

Cited By ~ 2

Author(s):

David Nestel ◽

Yafit Cohen ◽

Ben Shaked ◽

Victor Alchanatis ◽

Esther Nemny-Lavy ◽

...

Keyword(s):

Decision Support ◽

Decision Support System ◽

Support System ◽

Population Monitoring ◽

Fruit Fly ◽

Invasive Pest ◽

Pesticide Use ◽

Greenhouse Crops ◽

Pyrethroid Pesticides ◽

Dacus Ciliatus

The Ethiopian fruit fly (EFF), Dacus ciliatus, is a key, invasive pest of melons in the Middle East. We developed and implemented a novel decision support system (DSS) to manage this pest in a greenhouse environment in Southern Israel. Dacus ciliatus is commonly controlled in Israel with repeated calendar-sprayings (every 15 days) of pyrethroid pesticides. The current study compares the performance of a DSS against calendar-spraying management (CSM). DSS was based on EFF population monitoring and infestation. DSS took into consideration concerns and observations of expert managers and farmers. During 2014, EFF damage was concentrated in the spring melon production season. Fall and winter production did not show important damage. Damage during the spring of 2014 started to increase when average EFF/trap/day reached 0.3. This value was suggested as the threshold to implement pesticide spraying in DSS greenhouses. EFF/trap/day trends were derived from monitoring with conventional traps and a novel electronic remote sensing trap, developed by our group. CSM during the spring of 2015 included 3 EFF control sprays, while DSS-managed greenhouses were only sprayed once. At the end of the spring season, damage was slightly higher in DSS greenhouses (1.5%), but not significantly different to that found in CSM greenhouses (0.5%). Results support continuing DSS research and optimization to reduce/remove pesticide use against EFF in melon greenhouses. Interactions with farmers and managers is suggested as essential to increase adoption of DSS in agriculture.

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Identification of Host Attractants for the Ethiopian Fruit Fly, Dacus ciliatus Loew

Journal of Chemical Ecology ◽

10.1007/s10886-009-9636-2 ◽

2009 ◽

Vol 35 (5) ◽

pp. 542-551 ◽

Cited By ~ 24

Author(s):

Jeyasankar Alagarmalai ◽

David Nestel ◽

Daniela Dragushich ◽

Ester Nemny-Lavy ◽

Leonid Anshelevich ◽

...

Keyword(s):

Fruit Fly ◽

Host Attractants ◽

Dacus Ciliatus

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Effects of radiation on the fertility of the Ethiopian fruit fly,Dacus ciliatus

Entomologia Experimentalis et Applicata ◽

10.1111/eea.12289 ◽

2015 ◽

Vol 155 (2) ◽

pp. 117-122 ◽

Cited By ~ 10

Author(s):

Polychronis Rempoulakis ◽

Rossana Castro ◽

Esther Nemny-Lavy ◽

David Nestel

Keyword(s):

Fruit Fly ◽

Effects Of Radiation ◽

Dacus Ciliatus

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Ultrastructural investigations of MDL 19,660-induced effects on the canine platelet and megakaryocyte

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100159412 ◽

1990 ◽

Vol 48 (3) ◽

pp. 374-375

Author(s):

D.E. Loudy ◽

J. Sprinkle-Cavallo ◽

J.T. Yarrington ◽

F.Y. Thompson ◽

J.P. Gibson

Keyword(s):

Antidepressant Drug ◽

Beagle Dogs ◽

Long Term Effects ◽

Short Term ◽

Platelet Counts ◽

Toxicological Studies ◽

Induced Aggregation ◽

Internal Architecture

Previous short term toxicological studies of one to two weeks duration have demonstrated that MDL 19,660 (5-(4-chlorophenyl)-2,4-dihydro-2,4-dimethyl-3Hl, 2,4-triazole-3-thione), an antidepressant drug, causes a dose-related thrombocytopenia in dogs. Platelet counts started to decline after two days of dosing with 30 mg/kg/day and continued to decrease to their lowest levels by 5-7 days. The loss in platelets was primarily of the small discoid subpopulation. In vitro studies have also indicated that MDL 19,660: does not spontaneously aggregate canine platelets and has moderate antiaggregating properties by inhibiting ADP-induced aggregation. The objectives of the present investigation of MDL 19,660 were to evaluate ultrastructurally long term effects on platelet internal architecture and changes in subpopulations of platelets and megakaryocytes.Nine male and nine female beagle dogs were divided equally into three groups and were administered orally 0, 15, or 30 mg/kg/day of MDL 19,660 for three months. Compared to a control platelet range of 353,000- 452,000/μl, a doserelated thrombocytopenia reached a maximum severity of an average of 135,000/μl for the 15 mg/kg/day dogs after two weeks and 81,000/μl for the 30 mg/kg/day dogs after one week.

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