I swear that’s happened to me too! I remember a plant that had a few different issues, all of which seemed to start with the first neem leafwash. I don’t blame the spray as such - but it sure did seem to trigger something and wake up the fungus gnats Even tho it’s suppsed to kill em! Likely a coincidence I guess... but the correlation was strong so it was hard not to think it was causeI swear she was fine til I started spraying her...