Gnat killer spray

[Driver170]

Anyone know a good gnat killer spray i have these pests on my bonsai substrate.

 

[sorce]

Centipedes.

Gnatless within a week.

Guaranteed.

Harmless.

Sorce

 

[hemmy]

Anyone know a good gnat killer spray i have these pests on my bonsai substrate.

Fungus gnats? If so, conditions might be too wet encouraging rot. I use Bacillus thuringiensis (var. israelensis) granules in the garden during the 'rainy' season.

Sticky traps may also work.

 

[Driver170]

I had my ficus out all summer but its now in the grow room. My substrate is inorganic but I believe its green dream organic fertiliser they are attracted too.

How about neem oil

 

[BrianBay9]

I've found those adhesive pest strips to be the most effective.