A group of leaves on one of my Avocados has developed bumps, about 50 +. They are not unatractive but a bit of a surprise. The bumps are a quarter of an inch high, apparently with an entrance hole at the back. Cutting one open it is hollow but empty.
Does anybody have any idea?
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This is fascinanting reading. A tiny little 3mm flying insect starts the trouble and then the nymphs when they hatch cause the gall.
The one we have doesn't appear to cause any real damage but maybe one of the others if it gets into California could. Fingers crossed it does not.
Trioza anceps (Tuthill) found in Central America and Mexico
One more foreign insect to watch out for! Have you posted this information on the tropical fruit forum? Great pictures by the way.
