Content
- Pointing boxwood against the boxwood thinner
- If possible, avoid using chemical sprays
- Environmentally friendly sprays
- Tips
With very strong Buchsbaumzünslerbefall often helps only syringes
Pointing boxwood against the boxwood thinner
The Buchsbaumzünsler has now many regions of Germany, Austria and Switzerland under control in 2019 for the first time in Germany. A control of the pest is tedious and complicated, so that many gardeners desperately resort to lethal injection. However, this often causes even more damage.
If possible, avoid using chemical sprays
Chemical sprays not only work against the boxwood and other pests, but also against beneficial insects. They are one of the main causes of the massive deaths of bees, bumblebees and butterflies - and even that means you can read the words "Bee Friendly". Chemical pesticides not only kill insects but also harm songbirds and other gardeners. They represent a serious intervention in the natural cycle and should therefore only be used after careful consideration of all the advantages and disadvantages.
Environmentally friendly sprays
However, there are more environmentally friendly alternatives that have less drastic effects on nature and the garden. In organic farming, for example, the bacterium Bacillus thuringiensis (B.t.) has long been used, which is also approved for the home garden. The cultured caterpillars pick up the bacteria as they erode the boxwood and die quickly. For the treatment to be successful, you should complete it by the end of April at the latest. They proceed as follows:
When using the product, always follow the instructions and instructions given on the package. Do not use the remedy more often or in a higher concentration than stated - much does not always help a lot in this case! In addition to Bacillus thuringiensis, nematodes of the species Steinernema carpocapsae can also be used as spraying agents. However, these only work if the book has not previously been treated with chemical pesticides!
Tips
The best way to deal with the boxwood man is mechanical anyway: remove the caterpillars with the help of a high-pressure cleaner or a vacuum cleaner. You can also put an opaque garbage bag over the book and kill the caterpillars by the heat.