Sugarcane Borer vs. Mexican Rice Borer Feeding Injury

John K. Saichuk, Meszaros, Anna  |  12/2/2011 10:55:24 PM

1st instar stem bores feeding injury: Sugarcane borer (left) vs. Mexican rice borer (right). At this

Mexican Rice Borer - Eoreuma loftini (Dyar)

After hatching, young larvae feed inside fresh leaf sheaths. Feeding of early instar of sugarcane borers and Mexican rice borers cause the same type of injury manifesting in an orange discoloration of the leaf sheath. At this stage there is no difference among injuries of different species of stalk borers, but as Mexican rice borer larvae bore into the stem or stalk, they pack tunnels with frass, which prevents the entry of predators or parasites.



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