Huge savings for economy from humble wasp

A humble Irish wasp has saved New Zealand almost half a billion dollars, AgResearch estimates. The estimates also show that the benefits of the introduction of the wasp by AgResearch to control the highly destructive clover root weevil are expected to continue at an ongoing rate of at least $158 million per year. The total […]

Bumper summer for native moth

Farmers in the North Island are reporting to AgResearch plantain crop damage from a normally benign New Zealand native. The Epyaxa rosearia is a widespread native New Zealand moth, occasionally reaching pest levels, that feeds on a range of plants including plantain. Its recent appearance in large numbers in plantain crops has given rise to […]

Irish wasp may need help moving west

Increasing clover root weevil populations are being seen on the West Coast, but the AgResearch-introduced biocontrol is hot on its tail. AgResearch entomologists Dr Scott Hardwick and Mark McNeill, based at the Lincoln Campus in Canterbury, have been tracking the spread of clover root weevil (CRW) in the South Island, so that they know if […]

Summer pasture pest numbers on the rise

AgResearch scientists are predicting larger than normal numbers of the pasture pests porina and black beetle this summer. “The mild winter and warmer than normal spring are perfect conditions for adult black beetle and porina survival,” says Dr Alison Popay, AgResearch Science Team Leader – Biocontrol & Biosecurity. “We are giving farmers the heads-up – […]

Proactive action controls spread of weed

AgResearch science is leading the way in preventative action against an extremely costly weed. Careful management is the key to protecting dairy farmer incomes from the effects of the giant buttercup weed, says AgResearch scientist Dr Graeme Bourdôt. Dairy farmers can lose $1,040 per hectare per year in bottom line profit with just a 12% […]