Nematode Slow Release Pearls for Fungus Gnats and Thrips pupae 200 Pearls:Contains 200 pearls Aphidius are the most popular

Aphidius are the most popular

and it's better for the environment as the bags are "I'm Green" bags which are carbon-neutral

this will provide one application

The temperature must be above 14°C for treatment to work and you must follow the steps below carefully but this provides a really great way of controlling scale

BioDynamic and Vegan

Nematode Slow Release Pearls for Fungus Gnats and Thrips pupae 200 Pearls:Contains 200 pearls Aphidius are the most popularA new pest control solution designed for preventative control of fungus gnat larvae and other soil dwelling pests. This innovative formulation contains nematodes encapsulated within an organic, biodegradable, residue free coating that release nematodes gradually into the growing media, providing long term control. Novel formulation: Encapsulated in pearl like, biodegradable capsules for controlled release Preventative control: Effective against fungus