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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Elsje Joubert1, Tertia Grové2 and Gerhard Booysen3
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DOI:10.17265/2161-6264/2015.10.002
Affiliation(s)
1. South African Subtropical Growers’ Association, Tzaneen 0850, South Africa
2. Agricultural Research Council, Tropical and Subtropical Crops, Nelspruit 1200, South Africa
3. Insect Science (Pty) Ltd., Tzaneen 0850, South Africa
ABSTRACT
Fruit fly species’
responses to lures are critically important, especially when a single lure
might be recommended for the purpose of trapping multiple fruit fly species in
commercial fruit orchards. Fruit industries are facing threats from the recent
invasion of the oriental fruit fly Bactrocera dorsalis (Hendel) into novel areas in
South Africa. The objective of this study was to test the relative efficiency
of 13 different trapping
systems for fruit fly species in mango orchards in South Africa. Evaluation of the
different monitoring systems was conducted during the 2013-2014 mango season in
the Vhembe district municipality of Limpopo, South Africa. Four orchards, where Tommy Atkins was cultivated, were used to compare
the efficacy of the trapping systems. Trapping data (N = 48 observation incidences per trapping system) were analyzed using a
non-parametric ANOVA. Pronounced variation in species attractiveness across the trapping
systems was found. The enriched ginger oil (EGO) PherolureTM captured 33.77% of all the Ceratitis spp., while the Invader-lureTM captured 36.47% of
the total number of B. dorsalis trapped. Torula yeast
pellets are not recommended for fruit fly trapping due to the relative low trap
catch numbers and high non-target catches. These results are important and
significant for on-farm monitoring strategies, as well as for invasion monitoring systems currently in place to detect
the distribution of B. dorsalis in South Africa.
KEYWORDS
Fruit fly lure, Diptera, Tephritidae monitoring systems, mango.
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