I have seen some people recommend painting the trunks of citrus with lime to deter ants and other pests. Others say it is to prevent the trunk over-heating. Others say it's a waste of time. Do you know the truth of it?
06 December 2011 07:43 AM
There is no need to paint the trunk of your lemon tree with lime. It is a european practice which seems to have been popular over the years with some gardeners. The idea was that the lime would protect the tree from fungal diseases and certain insect pests. I haven't heard the comment about preventing the tree from over-heating. I would think if you placed a good quality mulch around the drip line of the tree, this is going to be the best way of keeping in the moisture and preventing the roots of the tree from drying out. If you wanted to spray a product on your citrus during the winter to control any pests that over-winter on the trunk and branches such as white louse scale, you can apply a product called Yates Lime Sulphur Just keep your trees well fertilised and watered and you will find your tree will reward you with lots of delicious fruits.