| DISEASES OF THE LEAVES |
| | Olive spots on underside | [page 5] | Scab |
| | Downy, buff, or greenish-yellow lesions | [page 7] | Downy Spot |
| | Small, reddish-brown to gray spots on underside | [page 6] | Brown Leaf Spot |
| | Dark brown to black lesions on veins and stems | [page 6] | Vein Spot |
| | Tiny white tufts of fungal growth on underside | [page 9] | Articularia Leaf Mold |
| | Small olive green velvety spots. By midsummer, black pimple-like dots appear in the spots | [page 7] | Leaf Blotch |
| | Leaflets yellowish, mottled, narrowed and crinkled with reddish-brown spots, may be perforated | [page 8] | Rosette |
| | Broomy type of twig growth, bunching of leaves | [page 8] | Bunch Disease |
| DISEASES OF THE NUTS |
| | Small black sunken or raised spots which may fuse to cover entire surface of shuck | [page 5] | Scab |
| | Pink spore masses on shuck surface | [page 9] | Pink Mold |
| DISEASES OF THE ROOTS |
| | Galls of various sizes on larger roots | [page 7] | Crown Gall |
| | Splitting and deterioration of bark of infected roots, strands of buff-colored fungal growth may be present | [page 10] | Cotton Root Rot |
| NONPARASITIC PLANTS ON THE LIMBS AND BARK |
| | Whitish-gray mosslike masses on the bark | [page 9] | Lichens |
| | Accumulations of grayish strands hanging from limbs and twigs or ball-like growth on limbs and branches | [page 9] | Spanish Moss, Ball Moss |