Yellowing spots and holes in fan leaves

Insecten maken dat soort gaten, het kan een rups of iets anders zijn, dus kijk onder de bladeren. Voor zover ik kan zien, zal het geen klein beestje zijn, maar iets dat je kunt aanpakken zonder iets toe te voegen (verwijder gewoon de beestjes).

Hi @Dico29 I can't see well if it is septoria but if it is The first step to effectively dealing with leaf septoria is removing infected leaves. If caught early, you can usually prevent the spread of the disease by simply removing all infected lower leaves and burning / destroying them. However, if the disease has spread to the height of your flowers, you’ll generally want to skip this step. Removing foliage from flowering areas will greatly weaken a plant and reduce the quality of its buds.you should give the plant a leaf bath with some preventive product, bio bizz leaf coat or canna cannacure to protect the leaves of your plant. outdoors you should always play it safe. good luck mate 🙏👍