I’ve had the pleasure of using the TOPBUXUS XenTari Raupen-& Zünslerfrei, an efficient biological insecticide that especially targets caterpillar pests. This product boasts a unique potent strain of Bacillus thuringiensis subspecies aizawai (Bta), a powerful microorganism known for its insecticidal properties. Despite its strong effect on pests, it’s completely safe for important beneficial insects such as bees and other insect predators, highlighting its ecological balance.

What I admire about this product is its ease of use. Simply dissolve the micro-granules in water and spray generously on the upper and under sides of the leaf to cover about a 30 m² of boxwood surface per 3 gram. The caterpillar pests ingest the ‘Cry’ proteins from the sprayed leaves which effectively inhibits their feeding and eventually leads to their termination within 1-3 days. It’s a remarkable method to keep your boxwoods caterpillar-free.

Being not harmful to humans, wildlife, or the environment translates to a responsible choice for both our gardens and our planet. The ideal treating temperature is above 15°C, and it’s recommended to repeat the treatment after 1 to 2 weeks. Combining it with TOPBUXUS HEALTH-MIX can provide excellent results. A notable feature is that the treated leaves have to be consumed by the pests for the impact to occur, ensuring zero harm to non-target insects.

Lastly, the packaging is convenient with 5 sachets, each having 3 grams of the product sufficient for the entire season’s treatment. If properly stored, its shelf-life can be extended up to 3 years.


By Charlie