Tagging of the Southern Pine Beetle with Phosphorus 32 1

Abstract
A radioisotope-tagging technique for tracing the dispersal of the southern pine beetle from one host tree to another proved satisfactory in laboratory and field-cage tests. Phosphorus 32 ( 32 P) was applied in an aqueous glycerine suspension to the bark before beetles emerged. Emerging beetles picked up and carried the radio-tag, and left the major portion in the pitch tube of the new host bolt.

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