Rural round-up

26/01/2014

Girls rule on South Otago dairy farm – Sally Rae:

Who needs a man?

For South Otago dairy farm manager Kara-Lee Clark (33) and farm worker Ashleigh McKechnie (19), assisted by two other female relieving staff when needed, being part of an all-women team is just normal.

The diminutive duo milk 340 cows on a 120ha property, owned by the Clark family near Milton. They are particularly proud of the herd of predominantly large Friesians.

”We get a bit of a hard time about that. They are big cows and we’re not the biggest of people,” Miss Clark said.

Being a female farm manager at the local Milton farm discussion group was quite a rarity, although she was not sure how unusual it was further afield.

When she embarked on a career in the dairy industry, after spending nine and a-half years working as a veterinary nurse at Clutha Vets in Balclutha, Miss Clark admitted she had a lot to prove to her family. . .

Initial trapping survey results in:

The first trapping results for Queensland Fruit Fly in Whangarei have shown no suspect flies detected in all 83 traps in Zone A and in all 90 lure traps from outside the controlled zones.

MPI Deputy Director-General Compliance and Response, Andrew Coleman, says “It’s a good early result but it’s important not to get complacent. We have still got a number of days to go before we know for sure whether there is a breeding population or not.”

The Whangarei community has been hugely supportive and to date has placed 180kgs of restricted produce in bins in Zone A and 70kgs in Zone B.

“We are very appreciative of this support,” Mr Coleman says. “It is vital that material that could contain the fly is not taken out of the zone, just in case there is a breeding population present in the area, which takes in Parihaka, Riverside and parts of central Whangarei.”

This insect is an unwanted and notifiable organism that could have serious consequences for New Zealand’s horticultural industry. It can damage a wide range of fruit and vegetables.

Insecticide ruling brings challenge – Richard Rennie:

The clock is ticking for researchers trying to find an alternative for a broad-spectrum insecticide destined to be phased out by the Environmental Protection Authority (EPA).

Following a reassessment of the use of organophosphates and carbamates in New Zealand’s crop and pastoral sector a number are scheduled to be phased out, because the authority considers their impact on human and environmental health to be unacceptable.

A key insecticide set to go by July 2028 is diazinon, which plays a critical role in controlling grass grub in pasture.

The authority issued its ruling on diazinon’s phase-out in the middle of last year but the long lead time to develop alternative chemicals to combat grass grub has researchers scrambling to develop alternatives. . .

Fast soil makes for bigger sink:

Rapidity in the natural world is relative; yet, while the latest findings from a research collaboration between Lincoln University and the University of Washington can hardly speak of comet-like quickness, it does shatter prevailing views, with implications for climate change as well.

Samples collected from western slopes of the Southern Alps have revealed that soil – the chemically and biologically active skin on the Earth’s surface – can be produced from mountainous bedrock almost twice as fast as previously thought. A subsequent proportional increase in chemical weathering of the soil was also observed.

The findings are important, as eroding mountainous regions account for over half of the world’s sediment production. If that sediment is produced by the formation of soil, rather than just slabs of bedrock collapsing off slopes as landslides, there is much greater potential for atmospheric carbon to be stored. This is significant because mountains play the role of carbon sinks – natural reservoirs that can accumulate and store atmospheric carbon. . .

Diesel from dust: using low fertility soils for biodiesel crops:

The escalating issue around peak oil in the context of the far-reaching global demand for fossil fuels is nothing new. Likewise, the increasing pressure this demand places on sourcing alternative fuels is also well established. One option is biofuels.

Producing biofuels comes with its own problems. There can be issues around an inability of supply to meet demand (such as is the case with tallow), but there can also be resistance to using productive land for biofuels instead of using it for growing food.

To meet these challenges, and in the interest of accelerating the young biodiesel industry in New Zealand, Professor of Ecology,  Steve Wratten at the Bio-Protection Research Centre has been heading up a research team to explore ways of growing plants suitable for biodiesel. More specifically, however, the aim is to find ways to grow these plants on low fertility soils and in such a way as to require minimal fertiliser inputs. . .

My old friend is telling me his twilight time is coming near #horses – Mad Bush Farm:

My old friend I’ve had for over eight years has grown very old. Over the last few days his walk has become slower, and the sparkle in his eye is gradually being replaced by that look that says “I’m tired and soon I will go to my forever sleep” I called him this morning from the other side of the farm. Usually, he would be the first one to arrive at a gallop, knowing he would be put onto some lush grass for the day . The ponies do not need it, but old Ed at over 30 years of age needs the best possible pasture each day. Today though, it took him a very long time, longer than usual. He had stiffly made his way back to where I was. I took him nearly 20 minutes to reach me. All four legs have developed arthritis in the last few weeks, and he’s lost some condition. Why? The answer is very simple. He is just very, very, old. It means now for me, I may have to say goodbye to a loyal equine friend I love very deeply. . .