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Gage County
1115 West Scott St.
Beatrice NE 68310
Phone: (402) 223-1384
FAX: (402) 223-1370
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Blackhorned Juniper Borer
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NEW INSECT IDENTIFIED IN GAGE COUNTY

According to Jim Kalisch, Extension Technologist, University of Nebraska, Department of Entomology, the new Gage County insect is a "Blackhorned juniper borer" (Official name Callidium texanum, family of Cerambyidae). It was found in cedar trees located south and east of Odell.

Jim states that in Nebraska, we only have a few records - in extreme southeast Nebraska, in the Pine Ridge area, in Lancaster and Nemaha counties and we add Gage.

Adults emerge in early spring and are attracted to recently cut, dry, seasoned wood for oviposition. This means you need to protect cedar lumber being used for hobby or finished project from the borer by spraying with "Tim-Bor" or by debarking the logs. This spray should be applied from April to June. This would cover the spring time period when adults are present and laying eggs in the bark of the cedar log.

The adult females deposit eggs just beneath the bark, and the larvae feed in the sapwood, making log tunnels packed with rough, fibrous frass. There is one generation per year, but larval development an be extended by unfavorable conditions.

NOTE: Sorry folks, this insect will not rid your pasture or CRP of the Eastern Red cedar as it is not found in live, actively growing trees, only in recently-cut, dry, seasoned wood.
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to Contact our Staff

Paul C Hay, Extension Educator
Jane Esau,, 4-H Program		 Larry Germer, Extension Educator
General Address: gage-county@unl.edu		 Dianne Swanson,, Extension Educator

Extension is a Division of the Institute of Agriculture and Natural Resources at the University of Nebraska-Lincoln cooperating with the Counties and the United States Department of Agriculture.
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