In message
,
Tim+ writes
Chris Hogg wrote:
On Fri, 6 Dec 2019 14:12:07 -0800 (PST), wrote:

I have a lawn that was laid 10 years ago with Rolawn Medallion turf at a
rental house. The tenant has been there all that time.

In that time, it has now become a dandelion bed, i.e there is now very
little grass visible and is now basically full of dandelions.

I see I have several options:

Dig it all up and lay new turf.... how long do the dandelion tap roots
go down and how do I ensure I get the entire tap roots out?

Apply a total weedkiller, wait several months and then reseed with
grass seed

Apply a selective weedkiller to kill just the dandelions and hope the
grass then regrows and fills in the space left by the dandelions

Pay GreenThumb or similar X quid a month and get them to visit several
times a year and sort it out for me.

What do the panel think?

S.

Option 3 - selective weedkiller, Verdone (now called Weedol lawn
killer) or similar. But not at this time of year. Wait until the
Spring when things start growing again. You may need two applications,
a few weeks apart. When the dandelions have died, scarify the larger
bald patches with a rake and over-seed with a good lawn seed mix. Be
vigilant and remove dandelion seedlings that will inevitably appear
over time. http://tinyurl.com/vohcq44 and http://tinyurl.com/yxzrxhqp


Verdone is what I tried initially but its expensive and the stuff
available to the public seems pretty ineffective (or I wasnt using it
correctly). Whatever, paying someone else to do all the treatment 4 times
a year works for me and gives far better results than I ever achieved.

Hormone weed sprays work best in ideal growing conditions, ample
moisture, warm days and nights. This needs to coincide with the ideal
target weed growth stage:-)

I have a knapsack sprayer which feeds a bar having 4 nozzles. Covering
about 4'0" and used at walking speed it is possible to apply chemicals
at the rate they were developed for: around 80 litres/ acre diluted. You
can't do this with a watering can or very well with a single nozzle.



--
Tim Lamb