Deficiency diseases in citrus

Deficiency diseases in citrus

Citrus likes a close to neutral pH i.e. between 6 (lightly acid) and 7. High alkaline soil prevents the absorption of iron, magnesium and zinc which are necessary for the production of chlorophyll, the green substance of leaves. Various deficiency diseases result. It...
How to keep trees safe from Citrus Gall Wasp

How to keep trees safe from Citrus Gall Wasp

Citrus gall wasp, an Aussie wasp originally from Queensland, can affect all citrus but seems to be most prevalent in lemon, lime and grapefruit trees. The galls are the result of the injection of eggs by the adult wasp into the soft stems of citrus trees in spring....
Has my tree got Citrus Leafminer?

Has my tree got Citrus Leafminer?

At the beginning of summer, silvery thread-like snaking tunnels often appear on new growth on the tips of citrus trees. By the time we see it, it is too late to do anything about it, other than to prune off the tips. The citrus leafminer is the larvae of a silvery...