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Month: November 2012

Grubby Grass Problems

Grubby Grass Problems

Chafer Grubs, Crane Fly Flatworms & Leatherjackets

Have I been lucky?

I have never had a lawn that has been infested with these insects. Leatherjackets are the grub of Crane Fly and they and Chafer grubs feast on the roots of grass. This creates brown patches and makes lawns and sports turf the target of birds looking for tasty grubs that are fat on your roots.

Crane Fly

Chafer Grub eggs hatch and the grubs feed on grass roots from July until late Autumn before burrowing deep into the ground to pupate. These grubs then lay dormant deep in the ground under the soil before moving to the surface the following Spring emerging as beetles in May / June and starting the process again.

  • Nematode control work best when the soil is warm on August. Grub killer from amazon
  • The organic alternative may be ‘Strikeback Natural Insect Killing Spray’ which is a solvent free, water based insecticidal space and surface aerosol spray that contains only natural organic ingredients
  • http://www.chafersurvey.co.uk/Is a site for more information and to record the location of infestations. It is provided by one of the purveyors of biological controls

Chafer beetle damaged lawn
New Zealand flatworms are an invasive species that are purple-brown on top and flat and pointed at both ends. They live on earthworms, covering them in digestive juices to dissolve them before sucking them up. Squash them if you find them on your lawn or under stones.

flatworm

Photo credits
Crane Fly by me’nthedogs CC BY-NC 2.0
Chafer beetle damaged lawn by urbanwild CC BY-NC-ND 2.0
Flatworm by Mollivan JonCC BY-NC 2.0

Yew Can Outlive You

Yew Can Outlive You

The worlds oldest living thing is a tree. Which tree is the question and where is it growing is a supplementary that causes regular discussion. Yewrica is not the answer unfortunately.

Is it the recently discovered Scandinavian Spruce 9000 years old? Or is it the Australian Wollemi or Huon Pine or the Californian Bristlecone Pine. At the moment the general assumption is that it is the pine recently found and dated in Sweden but may be there is an old Yew lurking somewhere.

Yew

According to Fred Hageneder in his book Yew a History ‘It was under the great Ankerwyke yew at Runnymede in Buckinghamshire that Magna Carta is believed to have been sworn by the barons in 1215. In 1803 Wordsworth celebrated the great yew in Lorton Vale, ‘single, in the midst of its own darkness’, a tree under which both the great Quaker George Fox and John Wesley preached. In many cultures it is the Tree of Life, and its association with churchyards in Britain and Europe has given it a particular claim on the popular imagination as a living link between our landscapes and those of the distant past.
Fred Hageneder’s fascinating book is the first to cover all aspects of the botany as well as the cultural history and remarkable mythology of the genus Taxus or Yew to you and me.’

How can you compete

Unless you own a forest in a suitably protected climatic environment you can’t compete.The next best thing might be to plant a Yew Tree but rather than the green Yew (‘Common Yew’) seen in church yards I recommend the Golden Yew ‘Taxus baccata Semperaurea’ (AGM). These are very slow growing and long lived like their cousins. .

Golden Irish Yew male trees have the same upright form as green Irish Yew. It was first cultivated in 1880. Unless planted in a particularly moist fertile site it is slow to establish itself. In the south golden Irish Yew benefits from some shade from hot sunshine and drying winds.

Irish Yew

Tips for Yew and You

  • Use Yew in hedges – they are evergreen.
  • Only Female trees set berries and some varieties only come in male form
  • The berries are poisonous but are now collected and used in cancer medicines
  • They can be used as wind breaks but only grow slowly 4” a year when young
  • They like slightly damp shade
  • The Dutchy of Cornwall list 14 varieties for sale from the plant shop
  • Yew is a good subject for Topiary
  • Plants are available from nurseries or look for seedlings near a friends tree
  • Be patient with cuttings and even more patient with seeds that need 18months to break dormancy
  • Plants like chalky and limestone areas but I have a healthy specimen in slightly acid soil.

yew Mont Gardon
yew Mont Gardon by Jos van Wunnik CC BY-NC-ND 2.0 “I feel tired…after thousand years…do I have to start again, receiving starlight for a new period?” I can imagine this old yew feels like this, not getting the attention it needs, leaning on a Gallic tombstone on top of a hill, next to the church of Mont Gardon.

See Yew Root and Branch review