04/10/2026
Spring and early summer are the key times to protect your citrus from citrus gall wasp.
I apply kaolin clay to create a physical barrier over the fresh growth, helping deter female gall wasps from laying their eggs in new shoots.
For best protection, aim for good coverage of the new growth and reapply when the coating wears off or after significant rain. I continue monitoring and applying through the main gall wasp activity period into summer.
It’s not a guaranteed fix, but combined with removing existing galls and regular monitoring, it can be a valuable part of your gall wasp prevention strategy.