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Brown beetle defoliating vineyard
Yellow flowers, Kaikoura Range
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Brown beetle defoliating vineyard
I have a small vineyard in Banks Peninsula, Canterbury. For the last two years we have been fighting grass grub, or more to the point brown beetle. During Oct-Nov each year they defoliate the vineyard almost over night. Other vineyards around the area also experience the same problem, and blanket spray insecticide when the beetles are flying. Last year we applied Pyrethrum but to no benefit, any suggestions?

Use a commercially available biological control, in February/March to affect the larvae in the soil. Use Pyrethrum in the evening just before beetles come out. We use a commercially available garlic-pyrethrum to good results.





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