Full question:
What can I use to sterilise the soil in my glasshouse? I grow tomatoes and capsicum, lots of Slater and aphids. Thank you.

Our response:
We like the organic products that Wally Richards has. In your case we would recommend an organic product called Terracin to suppress pathogens in the soil, followed by Mycorrcin three weeks later.

Soil pests can be controlled with Neem Granules.