Leaf Scorch

Leaf Scorch looks exactly as you would expect, plant leaves appear to have been scorched by heat and develop yellow or brown patches. This isn’t a disease, it is simply a symptom of repeated water stress (in urban areas it may also be caused by reflected heat from paving). You can’t do anything for the scorched leaves, but you can prevent it from happening by making sure the plants have all the water they require (which is necessary to grow good crops anyway.)