Nothing is moving. So I don’t think pest especially since none of the others have anything other than fungus gnats and surface white mold on the soil. These are all 5 weeks old. The plants first real sun today. I only water when the top layer of soil dries completely. Bottom watering led to the surface mold so now I only top water. I have multiple fans and a heater in the greenhouse. 10B. What are our thoughts?
by pagingdoctorcrentist
1 Comment
rub it on your fingers, does it feel like fine sand? If so, it is calcium oxalate crystals which are totally normal for spinach and not a sign of a problem.