| Chief Sign or Symptom |
Probable Pest or Disease |
Described Under |
| Leaves with encrustations, shells |
| White, thin, on euonymus, pachy- |
Euonymus Scale |
Scale Insects |
| sandra. |
(Fig. 51C) |
|
| White, pear-shaped, on needles. |
Pine Needle Scale |
|
| |
(Fig. 51A) |
|
| Small, white, on needles. |
Juniper Scale (Fig. |
|
| |
51C) |
|
| Small, reddish brown, circular. |
Florida Red Scale |
|
| |
(Fig. 50B) |
|
| White wefts on underside of |
Tea Scale (Fig. 50A) |
|
| leaves, upper surface yellow, |
| camellia, holly (Chinese). |
| Leaves with pustules |
| Orange or reddish spore pustules |
Hollyhock Rust |
Rusts |
| on underside leaf, upper sur- |
(Fig. 45B) |
|
| face with yellow areas; some- |
Cedar-apple Rust |
|
| times black pustules late in |
(Fig. 46) |
|
| season. |
Blackberry, Bean, |
|
| |
Rose, Asparagus |
|
| |
Rusts |
|
| Chocolate brown pustules. |
Snapdragon Rust |
|
| |
(Fig. 45A) |
|
| Coating on surface of leaf |
| White weft or felty tangles, leaves |
Rose Mildew (Fig. |
Powdery |
| sometimes faintly blistered or |
42A) |
Mildews |
| curled. |
Phlox Mildew (Fig. |
|
| |
42C) |
|
| |
Euonymus Mildew |
|
| |
(Fig. 42D) others |
|
| Dense black coating, growing in |
Sooty Mold (Figs. |
Sooty Mold |
| insect honeydew. |
51D, 64) |
|
| Leaves with dead areas |
| Small, depressed circles, tan on |
Four-lined Plant Bug |
Bugs |
| chrysanthemum, forsythia, etc., |
(Fig. 19A) |
|
| black on mint. |
GARDEN ENEMIES
