Black field crickets are a problem only in Northland, Auckland, parts of Taranaki, and Hawke’s Bay. Eggs are laid in moist soil from February to May, and nymphs (immature adults) emerge from November to January. Adults appear from February and live for two or three months. They inhabit cracks in the soil and eat surrounding crowns of grasses, which usually die.
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Photograph by G. R. Roberts
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