Plant diseases identification leaves

Nutrient Deficiency? - posted in Growing Hot Peppers: Hey all, this is my first year growing peppers and I think a few of them may have a nutrient deficiency. I have 38 plants total, ranging from bell peppers to scorpions, and about half of them are in 5 gallon containers. I am using Ocean Forest Fox Farm in the containers, which contains earthworm castings, bat guano, and sea-going fish and crab meal. I have been using a fish fertalizer, 1oz per gallon a few times a week, and I just…

Crop diseases are a major threat to food security, but their rapid identification remains difficult in many parts of the world due to the lack of the necessa...

The method of visual diagnosis of plant nutrition lies in the identification of symptoms patterns related to the role of each nutrient in the plant. Consequently, it is necessary to know the nutrient’s function and its mobility in the plant. The traits of nutrient deficiency will vary from one crop to another, but here we will discuss some general deficiency signs of a few essential nutrients that can be seen on almost every crop, along with its role and mobility in the plant.

Infected plants have brown or black water-soaked spots on the foliage, sometimes with a yellow halo, usually uniform in size.

I have planted some tomatoes in my garden. The plants have started showing white lines as shown in the picture. Is this some disease? If yes, What kind of disease is this? Is it safe to eat tomatoes

Without seeing the whole plant, it is hard to get positive identification without lab testing, however this appears to be Fusarium wilt. The first symptom is a slight yellowing of a single leaf or a slight wilting and drooping of the lower leaves. A distinct brown discoloration of the water and food channels can be

When you see orange, gold, or reddish spots rupturing leaf surfaces, you're dealing with rust.