Boxwood borers eat their way through the boxwood and cause lasting damage. However, the caterpillars can be combated with natural home remedies.
High-pressure cleaner is the method of choice, especially for large boxwood hedges. Algae lime (Lithothamnium calcareum) is another effective home remedy against the box tree borer.. Baking soda, which is often used against aphids or fungal diseases, was only able to briefly stop the caterpillar, but could not drive them away, as Plantura. Magazine informs. There is no evidence that coffee grounds (which are supposed to help against moss) are effective against the tree. borer in the event of an acute infestation, so rely on home remedies that have been proven to be effective in the case of boxwood borer infestations. The Ebersberg district office recommends the following mixture on its website: “Put a third of water, a third. of vinegar and aThird of oil into a spray bottle.”