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Tenlined June beetle : Polyphylla decemlineata Say (Coleoptera: Scarabaeidae: Melolonthinae)
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Tenlined June beetle : Polyphylla decemlineata Say (Coleoptera: Scarabaeidae: Melolonthinae)

Robert A. Rodstrom and John J. Brown
Fact sheet (Washington State University. Cooperative Extension), 272E, Washington State University Extension
06/2017
Handle:
https://hdl.handle.net/2376/12202
pdf
FS272E270.98 kBDownloadView
Rights Statements InC/1.0 ,  Open Access

Abstract

Scarabaeidae -- Control. Poplar -- Diseases and pests -- Northwest, Pacific.
Immature grubs of the tenlined June beetle are establishment pests of poplar. Cuttings used to propagate and establish hybrid poplars on land used previously for pasture or irrigated crops often fail due to grub feeding behavior. Loss of one cutting is of no consequence because adjacent trees will fill in the canopy; however, grub populations are grouped, and loss of nine or more adjacent trees can cause an opening in the canopy for years or the entire length of the rotation.

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