Technical
Ivy will grow to a height of 30 metres
“In the USA, Ivy is classified as an invasive species in more than twenty-eight states and a ‘noxious species’ in several others”
Ivy will damage brick walls
after cutting. Uptake is almost immediate from a fresh cut and will be rainfast within ten minutes. Application to a cut that has partially sealed means absorption is slow, and rain within six hours could wash some of the product off.
Chemical thinning
1) Rate: 1.6ml of neat Roundup ProBiactive 450/ 2mls of neat Roundup ProBio for each 10cm diameter of the stem.
Ivy must be dormant before treating
2) Method: Neat Roundup ProBiactive 450/Roundup ProBio is introduced straight into the phloem through a hatchet cut into the bark of the ivy leaving the plant intact. A spot gun with a solid stream nozzle is recommended, and it is advisable to make a second cut under the first to catch any surplus herbicide. Work out how many hatchet cuts are needed according to the diameter of the trunk, and space them round the girth, e.g. a trunk of up to 10cm diameter requires just one cut, 20cm diameter requires two cuts etc Alternatively, where the ivy stem is sufficiently broad, the concentrate can be introduced through an 8mm drill hole, about 40mm long, aimed slightly downwards and radially towards the centre of the stem.
Rates and water volumes for foliar treatment
Foliar spray - knapsack
5l/ha Roundup ProBio, in 200 litres of water per hectare or in waste ground & amenity situations add Mixture B NF @ 2% spray volume
4l/ha Roundup Pro Biactive, in 200 litres of water per hectare or in waste ground & amenity situations add Mixture B NF @ 2% spray volume
Only mature plants produce berries 136 PC DECEMBER/JANUARY 2014
Conventional CDA Weed-wiping with hand held weed-wiper
5l/ha Round up ProBio in a minimum of 10 litres of water or carrier oil (200-300 micron VMD)
4l/ha Roundup Pro Biactive in a minimum of 10 litres of water or carrier oil (200-300 micron VMD)
1 part Roundup ProBio to 2 parts water - or paintbrush
1 part Roundup Pro Biactive 450 to 3 parts water - or paintbrush
Specialist ULV applicator with drift reduction systems e.g Mankar*
Neat Roundup ProBio up to 5l/ha
Ivy facts
Ivy is often associated with holly as one of the evergreens still used to decorate houses and churches at Christmas - a custom deriving from pre-Christian times and once banned by the church because of these pagan associations.
Ivy was thought to counter the effects of alcohol, hence its appearance as an accoutrement of Bacchus, Greek god of wine, and on inn signs
In the USA, Ivy is classified as an invasive species in more than twenty- eight states and a ‘noxious species’ in several others, including Oregon, for one of the very reasons that it was introduced - its ability to rapidly spread. An internet search yields a multitude of American websites offering advice on ‘how to combat English Ivy’!
For more information visit
www.monsanto-
ag.co.uk or telephone the Monsanto Hotline on 01954 717575
Roundup ProBiactive 450 and Roundup ProBio contain glyphosate.
Roundup & Biactive are registered trademarks of Monsanto Technology LLC
Mixture B NF is a registered trademark of Amega Sciences
USE HERBICIDES SAFELY. ALWAYS READ THE LABEL AND PRODUCT INFORMATION BEFORE USE
Neat Roundup Pro Biactive 450 up to 4l/ha
*Details on Mankar ULV applicators are available from,
http://www.pitchcare.com/shop/mankar-ulv- ultra-low-volume-sprayers/
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