Weeds in block paving ..?
Question:Been treating the weeds on my block paving with weedkiller spray but even a litre bottle doesn't go much over 2 square metres for heavy infestation. I have a larger pump spray that I can use but where can I buy weedkiller in larger amounts to make it more economical? Would a solution that you make up with water be a cheaper bet. Appreciate your advices ....
Answers:
You are correctit would and indeed it used to be
I remember when you went into the shop and bought a couple of pounds (kilo in foreign money) of sodium chlorate for a few pence and mixed it up.
Now the DIY shops have got it sussed, they sell you the stuff in tiny sachets that works out at about £50 a kilo.
Find an agricultural supplier and buy the old fashioned stuff
PS might be sodium chloride instead of chlorate, best check before you buy
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Buying a concentrate and using a tank sprayer or backpack sprayer may be more economical over the long run.
A better solution might be to prevent weeds from sprouting in the first place. Paver sealers and polymeric sand seals the joints of paver blocks and prevent weed seed germination. Paver sealers need annual renewal. Polymeric sand basically lasts forever. Both help to reduce or eliminate sand blowing out of the joints as well.
Sodium chloride is salt. Concrete paver blocks are porous and will absorb salt. If you live in a cold climate with freezing winters, salt can cause spaulding - the flaking or popping off of the surface of concrete. This can have a negative impact on concrete block pavers.
Vinegar is an acid. Long term use of an acid on weeds in the joints of concrete patio blocks will prematurely etch the surface of the block.
Hi,forget weed killer the lad who cuts my Privot told me to buy Sodium Chlorate it is cheap & works better than weed killer.You can get it at B&Q,focus etc.Good Luck
get yourself a flame burner instead
Dig out as much of the weeds as you can before spraying. This allows it direct access to the roots and you will use less. Check out a farm supply . They can help you with a larger and cheaper solution.
a spoon full of salt to kill Dandelions and the like. Salt draws water out of cells to leave them dry, and salty soils kill plant roots. So target its application and use sparingly.
Excess salt poisons the soil. Many important organisms: bacteria, fungi, earthworms; will be killed by salinity. It will eventually wash out, even so I would not use it on land intended for cultivating plants. For some gardeners it is an option to consider with drives and gravel areas where plants are not intended to grow and where run off can be contained. Remember, salt will not biodegrade, so regular use will eventually be detrimental to surrounding areas.
Or a solution of vinegar works well.also boiling water
I use a blowtorch and shrivel them!
You have several answers to the problem already, but the cure would have been to use a landscaping fabric before laying the blocks, unfortunately most companies dont tell you this. when the weeds come through they are already strong and minimum 2" long, this is why they are a devil to kill off. Worth mentioning that some of the answers you had are bleach, which is a good weedkiller.
Try high acidic things if they dont work try high alcali things acids should work tho. after they've gone fill the gaps with concrete to stop them growing again
This one is great:
mix a gallon of laundry bleach, a cup of table salt, and a tablespoon of liquid dish soap in your sprayer. That's it!!
We just started using it, and it works great. Be careful though, it kills EVERYTHING it touches, and don't get it on your clothes.
try sodium cholrite you make it up with water and you put it in your pump sprayer it is marvelous i use it all the time and it is quick
i use what the farmers use round up I spray mine when they come up an they stay gone
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