Fruit flies controlled in orange crops without pesticide use

Feb 20, 2014

Orange crop infestation by the Mexican fruit fly and the cancelation of exportations of frozen pulp motivated Cítricos Ex (Citrex) research to create an effective technique to control the plague without using pesticides, as well as to the development of a mathematical model to predict the moment when the fruit is more susceptible to an attack.

Two years of research, added to the assessment by the National Institute of Forest, Agricultural and Forest Research (INIFAP) and the Ecology Institute (INECOL), "has allowed us to design a control strategy that prevents the presence of the insect in the ", says Sofia Antonio Nemiga, researcher at Citrex and head of the project.

The technique involves placing fly traps in the crop area. Sixty traps are distributed per hectare, instead of the usual one per five hectares. "We use attractive substances of high effectiveness that are poured in 500 ml pet bottles, which have previously been drilled with small holes," Citrex researcher Fortino Herrera Méndez says.

He points out that field studies suggested the distribution needed for the traps throughout the crop, given that there are zones where the fly is more prone to attack. This technique processes the fruit without plagues or pesticides, allowing Citrex to reestablish exportations and pay a higher price to the citrus producers.

The researchers indicate that the is still in an experimental phase; however, in about five agricultural cycles, it could be completed, and determine when the fruit is more susceptible to infection.

The development of this project has included the establishment of a climate station network that monitors crop-attacking insects and the training of producers, researchers and students.

"The information about the control method is already available, so that citrus producers can approach us at any time for assessment and help in the implementation of the technique, which is also very accessible. Our goal is to keep developing alternatives to control fly populations, which can be adapted and applied without presenting a strong investment", Herrera Méndez says.

Explore further: Study helps researchers better estimate citrus crop yields

add to favorites email to friend print save as pdf

Related Stories

Is reducing environmental impact in the EU feasible?

Jan 30, 2014

By 2023 all EU member states must be complying with more stringent guidelines related to Integrated Pest Management (IPM). "The essence of the new guideline is reducing the environmental impact of pesticides," ...

Those fruit flies are pickier than you think

Dec 05, 2013

On your kitchen counter, it might seem as though fruit flies will show up for just about any type of fruit you leave around for them. But when given a choice about where to lay their eggs, those flies will ...

Researchers induce freezing tolerance in fruit fly

Feb 14, 2012

(PhysOrg.com) -- Most of what is known about the ability of some cold blooded animals and several insects to survive having their body temperature fall below freezing has led to the conclusion that those organisms ...

Recommended for you

Study indicates large raptors in Africa used for bushmeat

Jul 24, 2014

Bushmeat, the use of native animal species for food or commercial food sale, has been heavily documented to be a significant factor in the decline of many species of primates and other mammals. However, a new study indicates ...

Noise pollution impacts fish species differently

Jul 24, 2014

Acoustic disturbance has different effects on different species of fish, according to a new study from the Universities of Bristol and Exeter which tested fish anti-predator behaviour.

User comments : 0