Wheat stem sawflies fact sheet
The Wheat stem sawfly (Cephus cinctus) and the closely related European wheat stem sawfly (Cephus pygmeus) are wasp-like insects. Their larvae attack a wide range of cereal crops and other large-stemmed grasses. Neither species is present in Australia, but both of these pests cause significant damage and loss of yield to wheat, barley, oats and other grain crops in Europe and North America. There are no effective chemical control methods for these pests because they are very effectively shielded inside plant stems for most of their life cycle.
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