Hydrellia lagarosiphon Deeming (Diptera: Ephydridae), a potential biological control agent for the submerged aquatic weed, Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae)

Martin, Grant D; Coetzee, Julie A; Baars, Jan-Robert

Title: Hydrellia lagarosiphon Deeming (Diptera: Ephydridae), a potential biological control agent for the submerged aquatic weed, Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae)
Creator: Martin, Grant D
Creator: Coetzee, Julie A
Creator: Baars, Jan-Robert
Date Issued: 2013
Date: 2013
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/103912
Identifier: vital:32322
Identifier: https://doi.org/10.4001/003.021.0118
Description: The leaf-mining fly, Hydrellia lagarosiphon Deeming (Diptera: Ephydridae), was investigated in its native range in South Africa, to determine its potential as a biological control agent for Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae), an invasive submerged macrophyte that is weedy in many parts of the world. The fly was found throughout the indigenous range of the plant in South Africa. High larval abundance was recorded at field sites with nearly all L. major shoots sampled ontaining larvae, with densities of up to 10 larvae per shoot. Adults laid batches of up to 15 eggs, usually on the abaxial sides of L. major leaves. The larvae mined internally, leaving the epidermal tissues of the upper and lower leaves intact. The larvae underwent three instars which took an average of 24 days and pupated within the leaf tissue, from which the adults emerged. Impact studies in the laboratory showed that H. lagarosiphon larval feeding significantly restricted the formation of L. major side branches. Based on its biology and damage caused to the plant, Hydrellia lagarosiphon could be considered as a useful biological control candidate for L. major in countries where the plant is invasive.
Format: 10 pages
Format: pdf
Language: English
Relation: African Entomology
Relation: Coetzee, J.A., Martin, G.D. and Baars, J.R., 2013. Hydrellia lagarosiphon Deeming (Diptera: Ephydridae), a potential biological control agent for the submerged aquatic weed, Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae). African Entomology, 21(1), pp.151-160.
Relation: African Entomology volume 21 number 1 151 160 March 2013 1021-3589
Rights: Authors
Rights: Use of this resource is governed by the terms and conditions of the BioOne Statement (https://bioone.org/about)

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Martin, Grant D (Dr)

Coetzee, Julie A (Prof)

RU Department of Zoology and Entomology

RU DST/NRF SARChI for Insects in Sustainable Agricultural Ecosystems

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