The volume of flame, however, is increased by inert gas, and there is a proportionate diminution of the heating effect. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 Various. Nitrogen by itself is an inert gas, colorless and uninflammable. Scientific American Supplement No. 819 Various.
There are two primary fungus diseases that can produce black spots on tomato plant leaves: Septoria leaf spot and Alternaria leaf spot, also known as early blight. Septoria and Alternaria differ slightly in appearance and prefer slightly different weather climates.
Tomatoes getting rot spots on them as soon as they turn green. My tomatoes are getting rot spots on them when they turn green.Is this a fungus or what.I've been told to use epson salt.My plants did the same thing last year.The epson did not do much good. Thank you for reporting this comment.