Bay Laurel tree advice...

[Calcat36]

Hi! I bought 4 seedlings last spring and they did well all summer. Last month, they developed scale. I pulled them out of the soil, washed them down, and re-potted them in "clean" soil. While the stalks are looking fine, and the scale is still not present, the leaves are drying out and looking sickly. There does appear to be leaf buds growing along the stalk/trunk. Any advice would be greatly appreciated. Thank you!