New records of three parasitoids, Pteroptrix chinensis, Aphytis hispanicus, and Marlattiella prima (Hymenoptera: Aphelinidae) associated with an exotic scale, Lopholeucaspis japonica (Hemiptera: Diaspididae) in Tennessee

Author:

Daniel Johnson Alfred1ORCID,Woolley James B2,Addesso Karla M1ORCID

Affiliation:

1. Department of Agricultural Science and Engineering, Otis L. Floyd Nursery Research Center, Tennessee State University , 472 Cadillac Lane, McMinnville, TN 37110 , USA

2. Department of Entomology, Texas A&M University , 2475 TAMU, 370 Olsen Blvd, College Station, TX 77843-2475 , USA

Abstract

Abstract A survey for parasitoids of Lopholeucaspis japonica Cockerell (Hemiptera: Diaspididae), an exotic scale of woody ornamentals, resulted in the discovery of 3 species of aphelinid parasitoid wasps, Pteroptrix chinensis (Howard), Aphytis hispanicus (Mercet), and Marlattiella prima Howard. This serves as the first report of these parasitoids reared from a host in the state of Tennessee, USA. Despite routine pesticide applications in the surveyed nursery and directed treatments of the infested plants to control the scale outbreak, the percentage of parasitized scale in privet and euonymus shrubs averaged 7.0% and 7.9%, respectively. These parasitoids may be useful in the natural or managed control of this pest in the United States, but additional research is needed to understand how these parasitoids contribute to the control of L. japonica in the landscape and how nursery production practices can be modified to promote parasitoid populations.

Funder

United States Department of Agriculture (USDA)-National Institute of Food and Agriculture (NIFA)-Evans Allen

Publisher

Oxford University Press (OUP)

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