A strain of the harmful bacterium xylella, transmitted via rosesmary plants, has been detected in the Netherlands, infecting over 300 plant species and posing a significant threat to the country's tree cultivation and perennial farming. The contaminated rosemary was accidentally delivered to two Dutch companies in July, prompting immediate action from the Dutch Food and Consumer Safety Authority (NVWA). While no spread is anticipated as most batches were quickly distributed, an area may need to be demarcated if the insect carriers of the disease are found. The LTO department of Trees, Perennials and Summer Flowers is closely monitoring the situation and will update its members with any new information from the NVWA.