My miniature orange tree which grows in a pot in my conservatory has developed creamy yellowish blotching on many of its older deep green leaves. The blotches seem to follow, roughly, the path of the veins or between the veins. Also, newer leaves are completely pale yellowish with barely visible green veins.
Otherwise the plant seems healthy with plenty of miniature, but, as expected, inedible, oranges.
There are no visible insects. I am trying a citrus feed and a systemic insecticide, but would appreciate any advice. This plant "belongs" officially to Mrs Coleman so re-potting in the compost bin is not a option.
- 27 Jun, 2011