There are a number of weed control options available to treat wild garlic. In addition to traditional weedkillers there are now also a range of more natural alternatives.
Contact weedkillers will burn and kill the foliage, but will have no effect on the bulbs. Constant spraying whenever leaves are present may weaken and kill them in time, although their foliage isn’t around for very long.
A systemic weedkiller, which is absorbed by the leaves, then moves down to the bulbs to kill them.
To ensure the weedkiller works effectively:
- Spray the leaves when the plants are growing actively.
- The larger the leaf area present, the greater the amount of weedkiller that can be absorbed. So don’t bother spraying when the growth first emerges through the soil – wait until the leaves grow larger.
- The most effective time is just before flowering.
- Use a fine spray to thoroughly coat the leaves in small droplets.
- Don’t spray when the sun is fully out. Ideally spray in the evening to prevent the spray evaporating and to give maximum time for the spray to be absorbed.
- One application of weedkiller probably won’t completely kill wild garlic. You may need to make repeated applications over several years.
Most contact weedkillers are total weedkillers – that is they will damage or kill any plants whose leaves they are sprayed on. Make sure you keep the spray off wanted plants – including lawns – and, if necessary protect plants by covering with polythene or similar when spraying.
Use weedkillers safely. Always read the label and product information before use.