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Terrain’s deep aeration in Yorkshire Sculpture Park

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Terrain’s deep aeration in Yorkshire Sculpture Park: Situated near Wakefield, West Yorkshire, the Yorkshire Sculpture Park is an open-air gallery that showcases work by world-class British and international artists, including Yorkshire-born Henry Moore, Barbara Hepworth and Damien Hirst.

The park has one of the largest open-air collection of Moore’s bronzes in Europe. Spread over 500-acres of 18th century designed landscape of Bretton Hall, YSP opened in 1977 and was the first UK sculpture park based on temporary open-air exhibitions that were organized in London parks from the 1940s to 1970 by the Arts Council and London County Council.

Terrain’s deep aeration in Yorkshire Sculpture Park

Terrain’s deep aeration in Yorkshire Sculpture Park

Today, the ‘gallery without walls’ has an ever-changing exhibition programme and preparing to reopen after lockdown presented an opportunity for remedial work to be done. Following a site visit by hydrology consultants inspecting a waterlogged area, they brought in Terrain Aeration with their deep aeration treatment system. The area in question was an important part of the Lower Park and a popular area for visitors and curators. It suffers from compaction due to footfall and the weight of sculptures, resulting in the build-up of standing water.

“It is unusual for the area to be cleared,” says Mark Chesman, Head of Estates and Parks at YSP, “but the sculptures in that area were removed for conservation work, and we seized the opportunity as part of a wider project. In all, it took two-and-a-half days and they treated 4,000 square metres of land.”

Terrain Aeration’s Terralift hammers a hollow probe one metre into the soil using a JCB road breaker gun. At depth, the ground is usually so compacted it needs the hammer to break through. Compressed air is then released to a maximum of 20Bar (280psi) to fracture and fissure the soil and the process is repeated in two-metre spacings, to ensure the fissures interlink. On the end of the air blast, dried seaweed is injected which sticks to the fissure walls, expanding and contracting with moisture content in the soil and keeping the area ‘breathing.’ The 1.5-inch probe holes created by the Terralift machine are backfilled with aggregate to provide a semi-permanent aeration/ventilation shaft, helping to keep the whole aeration process working. The park’s groundkeepers then overseeded the area to finish.

We tend to take trees for granted, in our parks, public spaces and estates but they are often subjected to stress as a result of several factors, such as nutrient shortage, surface compaction due to foot traffic, and waterlogging where water drains off hard surfaces. Yorkshire Sculpture Park features lime trees, beech and Atlas cedar amongst others and these were given Terrain Aeration treatment as well. Breaking up the soil around the roots, and beyond, means excess water will drain away from the roots to help stop anaerobic conditions and rotting of the root system. “We’re confident with what’s been done,” says Mark, “and will be looking at further areas to be treated, probably in the autumn.”

Terrain Aeration 01449 673783 www.terrainaeration.co.uk

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Control rats in 7 days

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Control rats in 7 days: BASF has launched Selontra®, a new rodenticide bait capable of controlling rodent infestations in just seven days. The bait features cholecalciferol, a new active with a different mode of action, which rodents have no known resistance to.

“Selontra is a new chapter in rodent control. Cholecalciferol is fast acting and stops rodents feeding within 24 hours. This minimises feed losses and the bio-security risk of rodents in farming. It is highly palatable to compete with other food sources on farms and can control even large infestations is just seven days, using the new BASF speed baiting method,” explains BASF Key Account Manager, Helen Ainsworth.

Control rats in 7 days

Control rats in 7 days

Concerns over resistance to anticoagulant rodenticide baits has created the need for a new active to be introduced to tackle so called ‘super rats’. “Some rats have developed resistance to difenacoum and bromadiolone actives which are used in a number of common baits. To help control resistant rats BASF has developed Selontra which contains cholecalciferol in a highly palatable bait matrix. This makes it more appealing to rodents than common farm food sources and in farm trials it was 13.2 times* more palatable than maize silage,” she says.

A new baiting technique, known as ‘speed baiting’, can reduce the time needed to control farm infestations. Using BASF’s 7-2-7 baiting method farmers can control even large infestations quickly, using less bait. Seven blocks of Selontra placed on day one and replenished on day two can be sufficient to tackle farm rats effectively. “By following the label and implementing the required number of bait stations, farmers can reduce the amount of bait needed and can control rodents in seven days,” she says.

Cholecalciferol is not persistent in the environment and so also offers an opportunity to reduce the effect of rodenticides on non-target species. “Selontra works by the rodent having too much calcium in the blood. This means fewer, less harmful residues which will help to minimise the risk to non-target species,” she explains.

Selontra is available from farm retailers and BASF has created an online course to help farmers learn about how it works and how to implement speed baiting. “This course provides all the information needed to use Selontra effectively in a rural environment. Rodenticides are a valuable tool to protect livestock and grain stores from rodents. Selontra is a cost and time effective solution that we hope will help farmers control rodents in the future,” concludes Miss Ainsworth.

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Ariens has the EDGE in zero-turns

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Ariens has the EDGE in zero-turns: The introduction of the EDGE zero-turn mower from Ariens is a landmark in domestic lawn mowing. Manufactured in their UK factory, it reflects the engineering excellence Ariens is known for, and there can be no doubt it looks set to surpass anything else in its class.

Zero-turn mowing in the UK has been steadily growing as the alternative to the conventional lawn tractor. Intuitive, easy-to-use controls coupled with total manoeuvrability mean zero-turns work at speed to outperform most lawn tractors, cutting grass in half the time. The EDGE offers all this and more.

Ariens has the EDGE in zero-turns

Ariens has the EDGE in zero-turns

With a zero-turn, you are free to spend less time mowing and more time enjoying your garden. Driven and steered by the rear wheels via two independent transmissions, the easy control levers are all you need to drive, brake, steer and spin on the spot. Zero-turn mowing is fast. You can whizz around at 6 mph, and at the end of the mowing row do a 180-degree turn, align the deck edge with the row you’ve just cut and keep on going. You have reduced the cutting time by 50% over mowing with a lawn tractor. No more turn, reverse, turn again and straighten out and no stopping. Without a lot of forward and backward movement, the result is outstanding cut quality.

All zero-turns do this, but the EDGE brings a host of other benefits to the mowing experience. Ariens has built a tough, durable mower with a wide range of commercial style features at an affordable price. With its Ariens 635cc engine, the EDGE is powerful, but Ariens also build it for comfort. The plush, high-back adjustable seat with natural airflow enhances operator comfort while keeping you cool. Stepping aboard is easier compared to a lawn tractor. You just lift the handles and get seated. All the controls are positioned in ergonomic, easily accessible locations and mostly hand-operated, making this zero-turn simple to use and an effortless driving experience for everyone.

The EDGE comes in two versions: EDGE 34 with an 86cm (34”) cutter deck and the EDGE 42 with a 107cm (42”) deck. The commercial-style, four-point deck hanging system enhances deck stability and robustness for a premium cut quality. There is a foot-operated deck lift for simple changes of deck height. By pushing the pedal forward and using the lever you can select seven from cutting heights, from 3.8cm to 12.7cm (1.5” to 4.5”). The large 50.8cm (20”) high, 20.3cm (8”) wide rear tyres are gentle on turf, delivering excellent traction and absorbing shock on uneven ground to give a smoother, more comfortable ride.

The EDGE comes with a 2-year/150 hours warranty and a range of accessories is available. For more information, visit your local dealer or go to www.ariens.com/en-gb

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Nip bugs in the bud

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Nip bugs in the bud: A host of bugs usually appear in April to prey on trees and shrubs but the recent cold snap early in the month may have proved a stay of execution for some species.

“The dip in temperatures most likely pushed things back a little,” says Dr Jon Banks, Research Lab Manager at Bartlett Tree Experts, “but plenty of undesirable things will be coming out very soon.”

Nip bugs in the bud

Nip bugs in the bud

Our treasured conker trees grow fearful this time of year of what may be about to hit them – the horse chestnut leaf miner.

These tiny moths emerge from leaf litter just as horse chestnuts burst into leaf, feeding off the fresh green foliage to leave unsightly trails and brown, crinkly remains.

The trees can even drop their foliage mid-season, giving up the ghost for the year in the hope of a better climate next time round.

Leaf miner, and another blight affecting the same species – horse chestnut bleeding canker – spread alarm across the UK when they first struck some 15 years ago but things are improving, Dr Banks notes.

While leaf miner is endemic now, arborists, landscapers and grounds managers are finding ways to combat the condition, he says.

“The moths typically emerge just after the tree’s leaves have expanded. Disposing of leaf litter can help reduce or prevent outbreaks and while no licence is currently available specifically for treating horse chestnut leaf miner, spraying with a broad-spectrum systemic insecticide, such as synthetic pyrethroid (trade names include Decis and Bandu) designed for amenity trees, is proven to be effective,” he explains.

“Tightly focusing the spray using a lance targets the treatment liquids where they are most needed,” he says. “Ideally, apply the liquid until just before run-off occurs as that ensures maximum adhesion to leaves.”

Turning his attention to larger specimens, Dr Banks adds that Bartlett Tree Experts have developed tailored management services, using spray equipment designed to safely deliver plant protection products efficiently and effectively to the canopy.

“Leaf miners have three generations during the summer so follow-up spraying is critical, he states. “Two treatments usually are applied. The first, in April or May, lasts three to four weeks, then it’s time for the second application. However, a third spray will provide better coverage for the full season.”

Lance spraying also delivers ecological benefits, Dr Banks believes. “We’re not just spraying for our own sakes. Losing leaves mid-season deprives wildlife of habitat and the less spray that falls where it is not needed or where it may cause harm, such as any nearby water, the better.”

Spring is a time when clients realise their trees are not in full health, or are dead and yell for advice, he says. “It’s a good time to look at trees as often we can see branch structure very well but also gain an idea of what’s coming into leaf, depending on the species.”

The good news about horse chestnut bleeding canker, which is caused by the pseudomonas bacteria, is that more trees may be tolerating the disease due to system induced resistance, he adds – because wholesale loss of our conker trees would deprive new generations of children of a favourite pastime.

https://www.bartlett.com/resources/horse-chestnut-lead-miner.pdf

www.berthoud.fr/en/

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Just the job

With 6 Bar pressure ceiling, the Berthoud Cosmos 18 Pro is tailor-made for treating trees using its giant telescopic lances, extendable to 2.4m or 3.6m and made in light, robust, rigid composite materials.

Highly chemically resistant and mechanically tough they come with hose, quick connect adaptor and profiled handle.

Check the website for calibration formulae and nozzle-to-target distances.

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Shining a light on innovation in the amenity sector

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Shining a light on innovation in the amenity sector: As part of its role in promoting best practice in all aspects of amenity management, the Forum has released a new digital publication entitled aptly enough ‘Amenity Innovation’.

It is intended to be a twice per year publication with articles on aspects of innovation and research. In the first edition, there are articles from Professor Alan Gange from Royal Holloway, University of London, on biological control, from Dr. Ruth Mann from STRI on innovations in sports, lawn and urban green spaces and from Dr. Penny Hundleby from the John Innes Institute on genome editing and what it can offer. Ian Graham, from Complete Weed Control, also considers what innovation can offer in his area of work.

Shining a light on innovation in the amenity sector

Shining a light on innovation in the amenity sector

The publication can be accessed here

https://amenityforum.co.uk/wp-content/uploads/2021/04/Amenity-Innovation-Newsletter.pdf

As the independent chairman of the Amenity Forum, John Moverley, says in introducing the publication, ‘Undoubtedly much is happening in all aspects of amenity space and sports surface management and a publication such as this is seen as giving opportunity for all in the sector to hear of particular projects, innovations and current research ideas’

Currently the government is undertaking a review of all aspects of weed, pest and disease management with a view to producing a new UK National Action Plan, which will set the targets and requirements in future. The Forum is actively engaged in such discussions and, within their recent consultation, innovation is a key topic.

For further information on the activities of the Forum and its guidance information and events, contact Kate at admin@amenityforum.net and she will also be pleased to forward you a copy of the new publication.

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