- CNTV English - CCTV News

Central Asian native brought in to boost New Zealand fruit exports

11-01-2012 16:08 BJT

WELLINGTON, Nov. 1 (Xinhua) -- New Zealand orchardists are receiving a little help from Kazakhstan in a bid to wipe out a pest that has been stymieing fruit exports.

Scientists with the New Zealand government's Plant &Food Research institute are introducing the central Asian Mastrus wasp, or Mastrus ridens, in a bid to wipe out another insect, the damaging codling moth.

About 1,000 Mastrus wasps were released in the eastern North Island Hawke's Bay region Thursday in the first field appraisal of the parasitoid wasp as a "biological control agent" in the local pipfruit orchards, said a statement from Plant &Food Research.

Control of the codling moth cost the New Zealand pipfruit industry between 8 million and 12 million NZ dollars (6.57 million and 9.86 million U.S. dollars) each year, according to Pipfruit New Zealand, the industry representative group.

"Whilst the presence of a single moth in a shipment can impact on market access for all New Zealand apple exports to codling moth sensitive markets, the industry is also focused on reducing the use of chemical pesticides," Pipfruit New Zealand technical manager Mike Butcher said in the statement.

"The introduction of the Mastrus wasp as a biological control agent is an important new component to our system that currently includes mating disruption, a codling moth specific virus and selective chemistry. This release is an important step in meeting quarantine requirements for our premium markets."

The female Mastrus wasp lays its eggs on the moth larvae, and when the wasp larvae hatch, they feed on, and eventually kill, the codling moth larva. They then emerge as adult wasps, which seek new codling moth larvae on which to lay their eggs.

"Biological control agents, such as parasitoid wasps, play an increasingly important role in controlling pests as chemical interventions are reduced," Plant &Food Research scientist John Charles said in the statement.

"This species, which originated in Kazakhstan, has been established in other countries, particularly in the U.S.A., for control of codling moth, and these initial releases in New Zealand will help us to determine how well they survive in our environment and control the pest."


Editor:James |Source: Xinhua

Hot Videos view more

The celebrations are still continuing as the victorious coach, Joachim Loew, has been honored for his achievement in his hometown of Freiburg.
Germany coach Loew honored in hometown of Freiburg

Chinese men´s national team continued its preparations for next year´s Asian Cup, as they managed a one-all draw against visitors Jordan during a football friendly in Harbin, the capital city of Northeast China´s Heilongjiang Province.
China held to 1-1 draw by Jordan

The defending world champs came into the contest with a perfect 6-and-oh record, but they would be in for a tough first half before opening things up in the second.
USA beat Slovenia 119-76 in quarter-finals

Hot Stories more

UK authorities believe killer of James Foley is a British national

Across the UK the hunt is on for James Foley’s killer, who authorities believe is a British national. As Richard Bestic reports from London, Prime Minister David Cameron cut short his summer break to lead his government’s response.

Israeli war jets renews Gaza strike as truce talks stalled

Three Palestinians were killed and 40 others wounded in the intensive Israeli war jets´ airstrikes on the Gaza city on Tuesday night, shortly before an end of a 24-hour ceasefire in the Gaza Strip,

Missouri police arrest dozens after violent night

As the protests in the town of Ferguson, Missouri turned violent with police facing ´heavy gunfire´ from some ´criminal elements´, cops fired tear gas, stun grenades and arrested 31 demonstrators on Monday night.

Picture in news more

More Video News

Choose TV Program