Flaggers on farmland

butt1

Has anybody on here any experience of getting rid of these off there land...there 3 ft high in places..totally dry field....I cut them last year and there up again spreading even more....I've being told they only grow on wet land....this is not true...limestone ground there on... I don't think roundup works...because a neighbour did a full reseed 3 year ago and they were stunted but back better than ever...if grass would grow as well...we'd bet sorted

handlemaster

i think horses will eat them, a year of that should do the trick

butt1

Is that from experience

Farmer Pudsey

Flaggers grow from a bulb. Therefore they have a strong root system. These bulbs multiply like spuds and daffodils. Cutting or grazing will not kill unless done numerous times durimg a year and leaf not left grow. Supprised Roundup did not at least stunt them. However they have a waxy leaf that may protect them. Using a activator that soften the wax and stick the spray will help. I imagine that really you need to like them now land is reseeded. Saw somewhere that MCPA and D50 works on them if so they are easly killed. I imagine that any scrub killer would hid them as well. They are also known as Fellistrim and technical name is Yellow Flag Iris. If you look up different sprays it should tell you which one treats them.

It may be a case of trail and error if you can get you hand on some of the above sprays and spray/lick different area's of them

Just came accross this
http://www.wcrc.govt.nz/Documents/Environmental%20Management/pestplants/Progressive%20-%20Yellow%20Flag%20Iris.pdf

Capercaillie

Round-up will not kill them. I spray my iris patch to kill the grass but preserve the iris/flaggers. I planted 0.5 acres this year.

tophat

In the spring time when the flagger is around 18 inches tall, I spray with MCPA (at the high rate per hectare) with a wetting agent as mentioned.

4-6 weeks later, the aerial/exposed part is "sealed off" with a plug at the base of the green part - like what you get in the autumn die-off with normal growing conditions. That year they will eventually die off.
I repeat this every year: really I'm just controlling the spread of them, it does reduce the density of the flagger clumps along with topping also.
I've lost some clover because of the MCPA but at least it's not like roundup which hammers a job on everthing green.

Carrigogunnell

I was told before to roll them first as it breaks them then spray them a few days later d 50 is very good on them.i always get a good kill top and then after 3 weeks spray u would see the following year the parts u missed.