TRY RUST FLY-BUSTING TEA
What could be nicer than going to the garden to pull out a perfect, crisp carrot. It can be disappointing though to find that – unbeknownst to you – rust fly larvae have attacked the crop.
I now make an onion “tea” by soaking the skins and other normally composted parts of the onion for a few days and then using the liquid to water round the rows of carrots. It seems to be effective against rust fly and much better than using chemicals like Diazinon when planting. Delwyn White, HAMILTON