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.
To minimize issues with this disease, space parsley plants apart and water in the morning. Septoria leaf spot â Septoria leaf spot on tomatoes is also a very common cause of yellowing or yellow to tan to brown lesions with yellow border on parsley leaves.light â Another reason your parsley plant has yellow spots on leaves may be from blight, with onset symptoms that include brownish patches on the foliage. As this infection progresses, typically the blotching overtakes the leaves, causing the plant to die.