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Strange spots on leaves

headshot

Member
These Spots are showing up on several of my outdoor gals leaves, any insight on what it is and what can be done? My girls are healthy besides these nasty spots that are in like 15% of my fan leaves. No bugs and no mold. All organic soil and compost teas, hoping this stuff doesn't ruin my medicine.
 

AgentPothead

Just this guy, ya know?
I'm not 100%, but I think that is the tunnel left by a bug larvae that tunnels through the leaves. I have no idea how you would deal with it, probably depends on which type of bug it is.
 

Crusader Rabbit

Active member
Veteran
AgentPothead is correct. You have leafminers. The trail like the insect starts out small (narrow) and widens as the critter grows. I'm not sure, but it appears to me that they've eaten their share, matured, and made their exit.

Just did some reading and found that these can be controlled with Spinosad; (Monterey Garden Insect Spray, Capt Jack's Dead Bug Brew).


This is a good write up about leafminers;

https://www.planetnatural.com/pest-problem-solver/houseplant-pests/leafminer-control/
 

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