White Spotted Bay Tree

Q; Have bay tree in tub on patio – approx 6 years old.  White spots appearing on underside of  some leaves – look like emulsion paint!  Also some leaves turned brown.  Is that frost damage?

A: The white is most likely scale insect.  If you don’t use it as an edible crop but treat it purely as ornamental you can spray with Provado which should over a period of time eliminate the insect within the white on the back of the leaves.  The browning could be winter damage, feed at 2-3 week intervals with a good liquid feed and it should grow out of it.

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