Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.

Crapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is a newly introduced insect pest on crapemyrtles, Lagerstroemia spp. (Myrtales: Lythraceae), one of the most popular flowering shrubs in the U.S. Since first detected in Texas in 2004, this pest h...

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Main Authors: Zinan Wang, Yan Chen, Mengmeng Gu, Erfan Vafaie, Michael Merchant, Rodrigo Diaz
Format: Article
Language:English
Published: MDPI AG 2016-12-01
Series:Insects
Subjects:
Online Access:http://www.mdpi.com/2075-4450/7/4/78
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author Zinan Wang
Yan Chen
Mengmeng Gu
Erfan Vafaie
Michael Merchant
Rodrigo Diaz
author_facet Zinan Wang
Yan Chen
Mengmeng Gu
Erfan Vafaie
Michael Merchant
Rodrigo Diaz
author_sort Zinan Wang
collection DOAJ
description Crapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is a newly introduced insect pest on crapemyrtles, Lagerstroemia spp. (Myrtales: Lythraceae), one of the most popular flowering shrubs in the U.S. Since first detected in Texas in 2004, this pest has spread to twelve states causing losses to stakeholders. To develop a management plan, we reviewed current knowledge about the pest’s biology and ecology, and suggested research approaches including studying its thermal tolerance, host range, plant resistance and biological control. Parasitoids and predators have been reared from A. lagerstroemiae in the U.S. and China. However, new surveys of natural enemies should be conducted in China, and studies on the host range and impacts of natural enemies on A. lagerstroemiae may help determine the potential for classical biological control. The life history, preying efficiency and rearing methods are important for coccinellid predators found in the U.S. including Chilocorus cacti L. and Hyperaspis spp. To enhance natural enemy performance, it is important to evaluate a sustainable insecticide program that considers efficacy, timing, rate and impact on pollinator health. Finally, an integrated management program of A. lagerstroemiae is discussed including planting resistant cultivars, using host specific natural enemies, and prudent use of insecticides.
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spelling doaj.art-318fc5d5fa4443f19e73cf5f0d6c7f7d2022-12-22T01:36:57ZengMDPI AGInsects2075-44502016-12-01747810.3390/insects7040078insects7040078Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.Zinan Wang0Yan Chen1Mengmeng Gu2Erfan Vafaie3Michael Merchant4Rodrigo Diaz5Department of Entomology, Agricultural Center, Louisiana State University, Baton Rouge, LA 70803, USAHammond Research Station, Agricultural Center, Louisiana State University, Hammond, LA 70403, USADepartment of Horticultural Science, Texas A&M AgriLife Extension Service, College Station, TX 77843, USADepartment of Entomology, Texas A&M AgriLife Research & Extension Center, Overton, TX 75684, USADepartment of Entomology, Texas A&M AgriLife Research & Extension Center, Dallas, TX 75252, USADepartment of Entomology, Agricultural Center, Louisiana State University, Baton Rouge, LA 70803, USACrapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is a newly introduced insect pest on crapemyrtles, Lagerstroemia spp. (Myrtales: Lythraceae), one of the most popular flowering shrubs in the U.S. Since first detected in Texas in 2004, this pest has spread to twelve states causing losses to stakeholders. To develop a management plan, we reviewed current knowledge about the pest’s biology and ecology, and suggested research approaches including studying its thermal tolerance, host range, plant resistance and biological control. Parasitoids and predators have been reared from A. lagerstroemiae in the U.S. and China. However, new surveys of natural enemies should be conducted in China, and studies on the host range and impacts of natural enemies on A. lagerstroemiae may help determine the potential for classical biological control. The life history, preying efficiency and rearing methods are important for coccinellid predators found in the U.S. including Chilocorus cacti L. and Hyperaspis spp. To enhance natural enemy performance, it is important to evaluate a sustainable insecticide program that considers efficacy, timing, rate and impact on pollinator health. Finally, an integrated management program of A. lagerstroemiae is discussed including planting resistant cultivars, using host specific natural enemies, and prudent use of insecticides.http://www.mdpi.com/2075-4450/7/4/78Acanthococcus lagerstroemiae (Kuwana)exotic speciesintegrated pest managementhost resistancebiological controlparasitoidsChilocorus cacti L.Hyperaspis spp.
spellingShingle Zinan Wang
Yan Chen
Mengmeng Gu
Erfan Vafaie
Michael Merchant
Rodrigo Diaz
Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
Insects
Acanthococcus lagerstroemiae (Kuwana)
exotic species
integrated pest management
host resistance
biological control
parasitoids
Chilocorus cacti L.
Hyperaspis spp.
title Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
title_full Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
title_fullStr Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
title_full_unstemmed Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
title_short Crapemyrtle Bark Scale: A New Threat for Crapemyrtles, a Popular Landscape Plant in the U.S.
title_sort crapemyrtle bark scale a new threat for crapemyrtles a popular landscape plant in the u s
topic Acanthococcus lagerstroemiae (Kuwana)
exotic species
integrated pest management
host resistance
biological control
parasitoids
Chilocorus cacti L.
Hyperaspis spp.
url http://www.mdpi.com/2075-4450/7/4/78
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