Watch for porina flights

8 November, 2017 by AgPest in Canterbury, Manawatu-Wanganui, Marlborough, Nelson/Tasman, Otago, Pests, Porina, Southland, Taranaki, Wellington, West Coast | Comments Off on Watch for porina flights

Look for and note porina flights as these can indicate when to adopt control measures later if required. The most cost effective time for control is 8-12 weeks after the main flights which may occur in November, mid-January and/or late-February/early March (especially central North Island).

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