Learning moment with chilli and garlic

As you probably know, I've been spraying my plants with the chilli and garlic pesticide and it's been working fabulously. In the last three weeks I've only seen one large white pest, which I dealt with swiftly, otherwise nothing. All was going well until I saw brown patches on my bird's nest fern. The chilli or garlic had burnt it! I felt devastated. As I mentioned in my last blog, my fern was just recuperating from being moved about, new swirls were coming through and here I go and burn it.
I checked all my other plants and they're fine. They actually seem to be thriving on it. So it's just the fern. I won't be spraying it again.

As it is, I can be thankful for two things:

1. The bird's nest fern is quite pest resistant anyway with broad leaves that can easily be wiped (which she likes).

2. All the other plants, which are far more prone to pests, love it.

Poor thing
You can even see the trails from the liquid.

The hibiscus on the other hand is reaching for the sky. No blemishes whatsoever.