I Have Purchased Several New Houseplants In The Last Couple Of Months Now The Plants Are Loosing Their Leaves, Just Dropping Off.

Question

There is not yellowing on plants. I have also noticed nats in my home, this is new also. I water when soil feels dry to touch. I

Answer 1

This all sounds like overwatering, unfortunately! I would wait until the soil is, completely, dry down to about 1/3 of the way into the container between each watering. Fungus gnats do not like to be outside of the soil area, and are a sign of serious fungal infection, as this is what they consume.

Fungicides and changing soil and watering habits will correct the issue:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/houseplants/hpgen/watering-your-houseplants-properly.htm

Measuring with a meter will be the best way to be completely sure of how much water the soil is saturated with:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm