sticky leaves on lemon tree

marina McShane asked 9 years ago

sticky, honey like substance on some leaves of lemon tree brought back indoors after being outside for summer. what is causing it. How can I treat it?

1 Answers

Gerry Daly Staff answered 3 years ago
The lemon plant has got either greenfly on its young shoots or scale insect on the backs of the leaves.

The latter are like small flattened pale-green scales attached to the leaf veins usually. They can be scraped off with a toothpick and wiggle a bit.

Take the lemon back outdoors on a callm day and thoroughly spray all the stems and foliage with a houseplant insecticide. Leave it for a few hours and take it indoors.