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International Research Journal of Insect Sciences

March 2016, Volume 2, 1, pp 1-11

A Suction Trap for Sampling Aphids and Aphidophagous Insects in Pecan Trees

James D. Dutcher

James D. Dutcher 1

  1. University of Georgia, Department of Entomology, Tifton Campus, Tifton, 2306 Rainwater Rd. Tifton, GA USA 31793 1

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Pages: 1-11

DOI: 10.18488/journal.106/2016.2.1/

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Article History:

Received: 16 July, 2016
Revised: 08 August, 2016
Accepted: 18 October, 2016
Published: 26 November, 2016


Aphids and aphidophagous insects were monitored in a pecan orchard by enumerating the insects collected on leaf samples and suction trap samples. Season long monitoring of the pecan foliage revealed that the aphid abundance prior to the late season outbreak on the leaves increased to higher population levels than could not be explained by the reproductive potential of the aphids. Concomitant season long sampling of the air in the canopy indicated that fecund alate aphids were continuously abundant in the air both before and between the outbreaks on the leaves. The results have important implications for improving scouting methods to predict aphid outbreaks and facilitate insecticide applications for aphid control.
Contribution/ Originality
This study is the first attempt to sample the pecan tree canopy with a suction trap and describe the seasonal long activity of three aphid species and associated beneficial insects in the pecan tree canopy from series of samples.


Carya illinoensis (Wangenh.) K. Koch, Seasonal population dynamics, Insect predators, Parasitoids.


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Thanks to the USDA/NIFA for support through Hatch and regional research funds and to the Georgia Agricultural Commodity Commission for Pecans for funding and to Mr. Eric Goodwin for constructing the traps and Ms. Jamie Wilson for operating the traps.

Competing Interests:

The author declares that there are no conflicts of interests regarding the publication of this paper.


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