Rubidium Marking Technique for the European Corn Borer (Lepidoptera: Pyralidae) in Corn

Abstract
Laboratory and greenhouse experiments conducted in 1980 showed that rubidium (Rb) could be used to mark corn plants and emergent European corn borer (ECB), Ostrinia nubilalis (Hübner), moths. Rb had no adverse effects on pre-adult mortality, moth deformity, or fecundity. The best application method for marking ECB moths was an over-the-top + directed foliar spray to the corn plants.

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