Black Widow

[ROSTERMAN]

I usually keep some of this around. It won't hurt the plants?

Nope , has to be Food Grade and just a light top coating when soil is on dry side

 

[ROSTERMAN]

@sharonp The DE crystals when dry cuts the knats as they make their way up from the soil

 

[sharonp]

@sharonp The DE crystals when dry cuts the knats as they make their way up from the soil
I understand that. I was worried it would cut through any plant matter.

 

[yooper420]

I water from the bottom only. This leaves the top 2-3" of soil dry, which the soil gnats can not crawl through. Elimination the easy way.

 

[ROSTERMAN]

I water from the bottom only. This leaves the top 2-3" of soil dry, which the soil gnats can not crawl through. Elimination the easy way.

Even better I was always uneasy about water from bottom
Do you have auto feed system in place?

 

[yooper420]

Even better I was always uneasy about water from bottom
Do you have auto feed system in place?

No auto feed, just water when needed. Have holes drilled in the sides from bottom to about half way up. Also have 2 clay saucers in bottom off each pot. My system has worked great for about 7 or 8 years.

 

[WeedHopper]

Yooper yours in kinda like a flood and drain system. Cool