Hello, the lovage is showing signs of an aphid attack (Aphids - pest management). In our product catalogue, there is no insecticide strictly approved for the control of aphids in lovage plants, but if you want an organic product, you can consider applying an insecticide such as , by foliar spraying, as recommended on the label. Several treatments can be carried out at 7-10 day intervals. Although not approved for lovage, the interval between the last treatment and harvest is 1 day in the case of approved crops.
In the future, in order to detect the presence of pests (flies, aphids, etc.) in time and to be able to take measures from the early stage of the attack, it is recommended to use adhesive traps such as . The pests are attracted by the colour of the paper and stick to the special adhesive.