Diseases of Plant Leaves. This picture describes the graphical detail of plant leave disease. White Flies Aphids Spots Grey Mould Powdery Mildew Leaf Fall Leaf Bronzing Rust Mealy Bug Yellowing of Leaves garden-organic-self-sustain
Here is an idea for a vertical garden in a classroom (plus a fish tank). This could also work in other places -- homes, places of worship, community centres, etc. Maybe even outdoors? With a mesh covering over the fish tank, the cats couldn't get in.