Quote:
Originally Posted by G.W.
leaf miners are inside the leaves and you must use a SYSTEMIC insecticide to combat them one they are IN.
Imidacloprid is the active ingredient in Bayer Tree and Shrub, that is probably the most concentrated version @ Home Depot.
I prefer Dimethoate on non bearing trees, and Imidacloprid on bearing due to a perceived change in fruit taste by Dimethoate.
|
Keep in mind that there is good scientific evidence that systemic insecticides like Imidacloprid can harm your pollinators, bees.
You might try Spinosad. It seems to work for citrus leafminers in my yard, and if you apply it in the evening (and especially if you work to avoid the flowers), probably has little if any effect on bees.