This is how we won our war on fruit flies: - repot all plants after rinsing all soil from them - use leca balls instead of soil and water the plants with a wa

This is how we won our war on fruit flies: - repot all plants after rinsing all soil from them - use leca balls instead of soil and water the plants with a water + fertilizer solution (this is what they do for office plants and why they have stickers saying “do not water”) - all incoming fruits and vegetables soak in water + vinegar for 20–30 min as this kills any eggs (they’ll also last longer because they don’t spoil as fast) - have bug screens on any window that we keep open (they don’t come standard in Europe) - the fruit basket is also enclosed in a bug screen for good measure I believe fruit flies mostly came through grocery store fruits (eggs on the fruits) and then hatched and went to live in the houseplants soil where they’d eat the roots.