From
KCC website
We spray weeds on roads and pavements once a year between mid-May and end of July. The timing depends on weather conditions.
It takes 2 to 4 weeks to spray roads in one district. Some roads will be treated after others and could have more weed growth by the time they are sprayed.
What we use
The chemical we use is Glyphosate. It is the most commonly used weed killer and is marketed as safe to its users and the public. It is suitable for use on and around roads.
We use specialist treatment methods for harmful weeds, such as ragwort, giant hogweed, Japanese knotweed and Himalayan balsam.
We do not treat other weeds such as dandelions which grow in grass verges.
How to help
Pulling or hoeing young weeds would save us using weedkiller. It is best to wear gloves when touching any plant you are unfamiliar with in case you have a reaction to the sap or prickles.
The weedkiller we use may remain in the plant system for 6 weeks or more so you should not put sprayed weeds into your compost or into your green waste collection.