| |
|
|
 |
|
 |
GARDEN ENEMIES |
|
FOLIAGE PROBLEMS (cont.)
| Chief Sign or Symptom |
Probable Pest or Disease |
Described Under |
| Leaves entirely dead Leaves suddenly dying at end of a branch. |
Fire Blight (Fig. 14) |
Blights |
| Vines dying. |
Tomato, Potato Late Blight |
Blights |
| Vines wilting, cucurbits. |
Bacterial Wilt |
Wilts |
| Terminal leaves of peach, dahlias, etc., turning black. |
Tarnished Plant Bug (Fig. 19B) |
Bugs |
| Dead leaves with small, salmon pustules. |
Volutella Blights of Boxwood, Pachysan- dra |
Blights |
| Leaves dying up the stem, often on one side, or limbs dying on one side of tree; vessels black. |
Verticillium Wilt |
Wilts |
| Elm leaves wilting, sometimes a branch making a yellow flag. |
Dutch Elm Disease |
Wilts |
| Oak leaves bronzing, wilting. |
Oak Wilt |
Wilts |
| Plants yellowing, wilting. |
Fusarium Wilts, Cabbage, Tomato, etc. |
Wilts |
BUD and FLOWER PROBLEMS
| Chief Sign or Symptom |
Probable Pest or Disease |
Described Under |
| Peony buds black, often with gray mold; flowers ball part way open. |
Peony Botrytis (Fig. 13A) |
Blights |
| Rose buds black when very small, or with bent pedicels. |
Rose Midge (Fig. 37A) |
Midges |
| Rose buds with small holes. |
Rose Curculio |
Curculios |
| Chrysanthemum buds with conical galls. |
Chrysanthemum Gall Midge (Fig. 37C) |
Midges |
| Buds black, deformed, especially del- phinium, cyclamen. |
Cyclamen Mite (Fig. 39A) |
Mites |
|
|
 |
|
|
|
|
|
|
