It was more than 20 years ago, but beekeeper Murray Bush remembers exactly where he was when he first heard that varroa mites had been detected in New Zealand.
The beekeeper from the picturesque vineyard town of Blenheim was in a small hut in the background, nestled in a remote valley on the south island.
“There was no cell phone coverage,” Bush recalled.
“It was a long way from the afterlife.”
Murray Bush, a Blenheim beekeeper on the South Island of New Zealand, has been managing varroa mite infestations since 2006. The mites first arrived in New Zealand in 2000 and are now spreading throughout the country. (Brya Ingram / Things)
Around 9 p.m., Bush jumped into his parked parking lot to hear the news on the radio.
“There was a special report that varroa had been found on the North Island,” he said.
“It struck us instantly that, well, okay, our beekeeping life has changed forever.”
Although beekeepers had found the destructive varroa far away in Auckland, 700 km from Bush’s own hives, including 22 km of Cook Strait waters between the two main islands of New Zealand, Bush went knowing immediately that he and his bees were in trouble.
“At the time, we had no idea how widespread it was, what the government’s response would be, what our own response would be,” he said.
He had read about the varroa mite in magazines and understood the impact that sesame seed-sized parasites could have on a country’s beekeeping industry, spreading viruses that paralyze a bee’s ability to fly, collect food, pollinate or leave your cell to be born.
“It wasn’t a mystery to us,” Bush said.
“We were grateful we didn’t have it and all of a sudden we had it.
“And that mental impact was instantaneous.”
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The varroa mite, also known as the destructive varroa, is the size of a sesame seed and the most serious pest for honey bees worldwide. (NSW DPI)
Bush was right to be worried.
The mites, also known as varroa destroyers, took five years to swarm the North Island, cross the wild Cook Strait and infest their hives.
In less than a decade, reddish-brown organisms had spread the entire length of 1600 km and 450 km wide from NZ.
“There’s no turning back the clock,” Bush said.
“It’s effective with you for a lifetime.”
After mites were detected in biosecurity surveillance hives in Newcastle Harbor last Friday, the clock is ticking in Australia.
The NSW Department of Primary Industries (DPI) has issued a statewide emergency order to control the movement of bees statewide and stop any spread.
Around 6,000,000 bees have been destroyed, with as many victims as possible, and three different exclusion zones established around the port of Newcastle with a gravity of between 10 and 50 km.
The DPI has banned bees from moving through NSW.
“If the varroa mite settles in the state, it will have serious consequences, so we are taking all necessary precautions and measures to contain the parasite and protect the local honey and pollination industry,” said Agriculture Minister Dugald Saunders.
It is unclear where the mites originated, potentially a ship in the harbor or possibly an already contaminated local hive unknowingly, but one thing is certain: an outbreak will threaten Australia’s 70 million beekeeping industry. dollars.
Australia can learn from New Zealand’s fight against mites, Bush said.
It is vital that the government give beekeepers massive coordinated support and significant funding to deal with what can unfortunately already be an invincible war, he said.
“It could be too late,” Bush said.
“Your window of opportunity to assess your position is thorough.
“Once the varroa escapes, it can go anywhere.”
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Due to the incestuous nature of varroa, a lone bee carrying a single mite can cause a massive outbreak.
The first egg laid is always male, and the later females.
Once the eggs hatch, the male mates with the females.
Biosafety zones need to be established everywhere, Bush said, otherwise beekeepers from Queensland to South Australia were looking at the barrel.
“You only have a brief opportunity to assess the scale of spread and the chances of eradication,” Bush said.
“So don’t skimp on that financially.”
If the genius comes out of the bottle, Bush said Tasmania, and possibly Western Australia, could be lucky and escape the contagion.
The impact and tensions on beekeepers in the NSW red zone right now are immense, he said, as the hives are systematically isolated and destroyed, and a massive cloud of uncertainty and pressure hangs over them.
“This means an immediate loss of income (for beekeepers) and possibly losing years of hard work with breeding programs.”
Orchards and beekeepers who depend on bees to pollinate crops will also be prepared for the worst of the news.
“Mental torment cannot be underestimated,” Bush said, recalling the upheaval and disorder experienced by kiwi beekeepers in the early stages of the discovery.
“I’ve been to meetings and tough, big men who have seen it all cry.
“Mental stress became so overwhelming.
“And when they asked a question, the answer is ‘we don’t know.’ And it’s not the bureaucrats who don’t do their job, it’s that they don’t know.”
Prior to Friday’s alert, Australia was the only major honey-producing country free of varroa mites and if it has a chance to settle here, it could cost the honey industry more than $ 70 million. annual. (SMH / Dominic Lorrimer)
If Australia cannot contain and eradicate the discovery of the port of Newcastle, the industry will adapt and learn to live with the parasites, New Zealand Beekeeping President Jane Lorimer said, but there will be cascading costs.
Some beekeepers will inevitably leave the business, he said, unable to survive the loss of hives and the financial impact caused by a forever changed business model, which must somehow remain viable despite lower margins.
“It’s a huge pain to try to deal with it,” Lorimer said.
A beekeeper with 30 years of experience, Lorimer spends $ 18,000 to treat her 1,500 honey hives against varroa mite, an exercise she performs two or three times a year, depending on the ever-changing conditions of local mites.
He described his beekeeping in Waikato, a rich agricultural basin 130 km south of Auckland, as “average”.
Since the varroa swarmed into New Zealand, Lorimer has been forced to hire twice as many staff to supervise, care for and treat the hives.
“Every beekeeper just has to work with what he sees,” he said.
“We lost a lot of hives last winter.
“At first it was a re-invasion of varroa because some beekeepers could not afford the treatment, and then we had a very bad wasp season last fall.
“Everything that was weakened by the varroa ended up being removed by the wasps.”
In the war on varroa, it’s a one-for-all and one-for-all situation, Lorimer said.
Beekeepers need to work together, treating their hives several times a year, to put in the best protective shield they can for the entire industry.
But even that may not be enough.
Like viruses and other parasites, varroa is constantly evolving.
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And after 20 years in New Zealand, mites have begun to generate resistance to synthetic and organic treatments.
“We’re starting to see NZ change bags or less effective with some of the treatments we’re using,” Bush said.
“The result is more time for more follow-up, more spending.
“And in the worst case, more lost hives.”
Bush pauses when asked what the varroa situation may be in New Zealand in another 10 years.
“It would be a random guess, but it won’t get any better, so to speak.”
If you have hives located in the 50 km biosafety area, call 1800 084 881.