Development of a trap for collecting Cochliomyia hominivorax (diptera: caliphoridae) flies

Bruna Carolina Druzian Salinas,Izidro Dos Santos De Lima Junior

doi:10.18406/2316-1817v9n22017977

Bruna Carolina Druzian Salinas, Izidro Dos Santos De Lima Junior

Open Access

https://doi.org/10.18406/2316-1817v9n22017977

Copy DOI

Abstract

The insect Cochliomyia hominivorax (Diptera: Caliphoridae) causes primary cutaneous myiasis, and the use of traps is an alternative to monitor this fly in the field. Thus, the objective of this work was to develop a low-cost trap for collecting C. hominivorax in the field. Three experiments were conducted, with six replications, in the experimental field of the Brazilian Agricultural Research Corporation (Embrapa - Agropecuária Oeste), in Ponta Porã, State of Mato Grosso do Sul, Brazil. Traps were developed using two-liter polyethylene terephthalate (PET) bottles cut in half, with 30 grams of bovine liver and water covering 90 % of the liver mass placed in the bottom half, using the upper half as a cover funnel to keep the captured flies in the bottom half. The experiments consisted of evaluations of different opening diameter of the trap entrance (3, 4, 6 and 7 mm) with traps installed at 1.16 m from the ground (Experiment 1), heights of installation of the traps (0.00, 0.40, 0.80, 1.20, 1.60 and 2.00 m from the ground) (Experiment 2) and bottle colors (yellow, blue, white, green, red and transparent) (Experiment 3). The collected data were subjected to Tukey’s test (p < 0.05). The ideal traps for collecting C. hominivorax in the field were those with opening diameter of 6 mm, height installation of 1.20 m from the ground, using transparent PET bottles.

Highlights

Cochliomyia hominivorax (COQUEREL, 1858) (Diptera: Calliphoridae) depends on a host to complete its life cycle
The use of traps to monitor pests is the most effective way to collect data on these insects in the field, their natural enemies and bio-indicators of environmental quality (MELO et al, 2001). In this context, based on the presumption that no traps for capture flies in sheep rearing are found, the objective of this work was to develop a low-cost trap from recyclable material, for collecting C. hominivorax in the field, aiming to facilitate the monitoring of this pest and assist in decreasing unnecessary use of chemical control
Experiment 1 - Traps were developed using two-liter polyethylene terephthalate (PET) bottles cut in half, with 30 grams of bovine liver (GOMES et al, 1998) and water covering 90 % of the liver mass placed in the bottom half

Summary

Introduction

Cochliomyia hominivorax (COQUEREL, 1858) (Diptera: Calliphoridae) depends on a host to complete its life cycle This insect is an obligate parasite of endothermic animals and causes primary cutaneous myiasis in pre-existing wounds (CORONEL, 2011). An integrated pest management program was initiated in 1957, aiming to eradicate this parasite and a process of sterilization of males of C. hominivorax was introduced in Florida, The United States of America, using gamma rays, decreasing its proliferation until eradication. The success of this program encouraged its use in other southeastern and southwestern states of the USA, and the C. hominivorax fly was eradicated from that country in 1982, from Mexico in 2001 and, from Central America in 2004 (MASTRANGELO, 2011). Six days after larvae hatching from the eggs, they become pupae, burrying themselves into the soil for 10 days, when they become adults, beginning a new cycle (egg-pupae-adult) (LEITE, 2004)

Objectives

Methods

Results

Conclusion