Honeydew, a sugary excrement, can be seen on bark and leaves Sooty mold can follow honeydew and turn bark and leaves black and gray (Figure 2). It is not a pathogen but will discolor plants Crape ...

They also secrete honeydew and can cause sooty mold. Like scale insects, mealybugs have a ... Over time, these yellow lesions turn brown or black and take on a v-shape. Blight is caused by the ...