Black beetles are mainly pests of pasture, but they also attack crops such as maize, sweet corn, potatoes, strawberries and kūmara (sweet potato). Adult beetles usually emerge in February, and after feeding for a few months spend winter in the soil. They resurface and lay their eggs about late spring. The larvae look like grass-grub larvae but are larger, and also eat grass roots. Pasture roots die off and the turf can be rolled back like a carpet. Black beetles prefer living in free-draining, sandy soils.
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The black beetle that eats
Judy Astleford (not verified)
01 March 2011
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