International Sugar Journal

Potential cane and sugar losses from top-shoot borer, Scirpophaga excerptalis (Walker) (Lepidoptera: Crambidae)* [Full subscriber]

Abstract         Top-shoot borer, Scirpophaga excerptalis (Walker) (Lepidoptera: Crambidae), is one of the moth borers considered as pests of sugarcane in Papua New Guinea.  Larvae bore from the top of the cane through the spindle and into the growing point (meristem), killing the stalk.  Cane of 4 weeks old through to mature cane can be damaged.  Here, the population dynamics of top-shoot borer at Ramu, Papua New Guinea, and estimated sugarcane juice losses are reported.  The life cycle of top-shoot borer is 48–62 days and cane of all ages can be attacked.  Populations of top-shoot borer remained low from September to…

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