My lemon tree's fruit is turning grey with a powdery residue, is it mould or brown rot?
The fruit sometimes still hangs on the tree like that or falls and rots away. It is next to a peach tree that suffers brown rot but I was not aware that lemons suffer in the same way...it never has before. Can I use Triforine as it does not state on the back label anything about citrus?
Brown rot does affect citrus trees and both the leaves and fruit can be affected. A greyish brown firm rot develops on the fruit and they may fall off the tree. Preventative spraying should occur before or immediately after the Autumn rains and also in late Winter or Spring if it has been a very wet year. If prolonged wet weather period occurs, apply a second spray during the first period of fine weather. Use Yates Leaf Curl Copper Fungicide Spray
Answered: 4 Feb, 2012