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Black beetle
(Heteronychus arator) is a pest in the upper North
Island, on light, free draining soils (e.g. peat). Black beetles are only found in warm areas, including Northland, Northern Waikato, the coastal districts of Auckland, Bay of Plenty, Gisborne and northern Taranaki. As they live in and on the soil, they are mainly found in free draining, sandy, light ash or loam soils and do not like heavy clays or peats. |
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Black Beetle damage to emerging ryegrass:
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Adults emerge after pupation, from late February to April, just as new seedlings are germinating.
