“At regular intervals, the nematodes literally burst out of the root where they breed frenetically. The offspring then burrow their way back in to any available roots, where the whole cycle starts again”
grass plant was as healthy as possible. Secondly, we have been applying a garlic based nematicide, which research has shown to be effective in controlling the root gall nematode. Timing of these applications is crucial, as it is only effective when the nematodes are outside the root and breeding, so three treatments are made on consecutive weeks. We have also bought a
mustard based nematicide which has been used at The Emirates stadium with good results.
Bowls green one has been the worst affected of the surfaces, but we think we are seeing a genuine and sustained improvement in all the lawns. We are very hopeful that our current plan of action, which is being implemented with enthusiam and expertise by the team, lead by new supervisor Tom Clarke, will eventually see the lawns return to their previous high standards.
The other major problem that we have been tackling this summer is that of blanket weed in the lake.
This has been an ongoing
problem for many years but, this year, due to the high summer temperatures, the problem is far worse. Firstly, I think it is important to stress that neither the recent dredging of the lake or the installation of the new fountain are linked to this problem. Blanket weed is an algae, and is very successful at colonising and dominating an environment under favourable conditions. It spreads and recolonises
vegetatively, by branching off and breaking off parts of its own structure which will then colonise new areas. A combination of warm water temperatures, high nutrient levels and lots of sunlight are needed for algae growth but, once those conditions are right, growth can be remarkably quick, as has been seen this year. We have tried many
different methods to combat this problem, including ultrasound devices and numerous chemical concoctions, all harmless to fish and wildlife but, unfortunately, also harmless to pond weed!
Barley straw has been used to combat this problem for centuries, but it is only recently science has found out how. When the straw rots down, it produces a dilute form of hydrogen peroxide which kills the weed Placing barley straw bales in the lake is something I have always tried to avoid, as it doesn’t look nice, but we are now trying a liquid barley straw extract, and it seems to be working.
Another way of reducing pond weed is to starve it of sunlight and, to this end, we will soon be planting sixty pond lilies in the lake, which will not only aid our battle against the weed but also look attractive. Working with nature is part and parcel of my job, and it is the most enjoyable aspect of my work. Occasionally, nature bites back and the nematodes and pond weed issues are good examples of this.
“We have tried many different methods to combat this problem, including ultrasound devices and numerous chemical concoctions, all harmless to fish and wildlife but, unfortunately, also harmless to pond weed!”
135 An environmental nematicide for protecting grass
• Reduces Nematode populations in sports grounds and golf courses
• Quick, clean and easy to apply • Economical - 5 litres treats up to 9 greens • Improves the look and quality of the grass • Natural product - safe to use in public areas
ECOspray Ltd, Grange Farm
Hilborough, Thetford, Norfolk IP26 5BT Tel: 01760 756100 / 07810 305605 Email:
ecospray@ecospray.com Web:
ecospray.com
eco
ECOspray is very pleased to announce that Eagle Green CareTM has been granted UK approval as a horticultural liquid nematicide for amenity and sports turf (MAPP No 14989)
• This is the first approval ever for a liquid nematicide on turf to be granted and heralds the way for ECOspray to register other nematicides from its stable of products.
•Granule and liquid formulations form the basis for a portfolio of products specifically designed as nematicides.
•In particular, ECOspray secured Annex l approval in August 2009 and now has a number of Annex lll products in a registration pipeline in the UK, Europe and further afield.
For further information, please contact Stephen Silvester at ECOspray
Tel: 01760 756100
www.ecospray.com
eco
spray
SPRAY
APPROVED FULL UK NOW
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