| |
|
|
 |
|
 |
Garden Plants and Their Problems |
| ENEMY |
DAMAGE |
CONTROL |
| Coreopsis (cont.) |
| Coreopsis leaf |
Green beetles feed on foli- |
Dust with DDT or rote- |
| beetle, spotted |
age. |
none. |
| cucumber |
| beetle |
| Corn |
| European corn |
Cream caterpillars at base |
Dust whorls with DDT, |
| borer |
of ears, stalks break over. |
Ryania, or rotenone. |
| Corn earworm |
Dark caterpillars at tips of |
Dust silks with DDT or |
| |
ears. |
DDD. |
| Bacterial wilt |
Plants are dwarfed, wilt, |
Use resistant varieties like |
| |
dry. |
Golden Cross Bantam, |
| |
|
Marcross. |
| Corn smut |
Large ""boil"" on ear or |
Cut ofl and burn before it |
| |
stalk filled with smutty |
breaks open. |
| |
spores. |
|
| Cosmos |
Beetles-
spotted cucumber and
Japanese,Asiatic garden
|
Flowers eaten. |
Spray with DDT. |
| Stalk borer |
Plant wilts. |
Slit stalk to kill borer. |
| COTONEASTER |
| Scales-San |
Round or oyster-shaped |
Dormant oil spray. |
| Jose, oyster- |
gray scales on bark. |
|
| shell |
| Hawthorn lace |
Leaves stippled grayish, |
Spray with lindane or nico- |
| bug |
brown specks underneath. |
tine, when nymphs hatch. |
| Cottoneaster |
Ends of branches are |
DDT or lead arsenate. |
| webworm |
webbed, leaves skeleton- |
|
| |
ized. |
|
| Fire blight |
Branches dying back. |
Cut out 6 inches below |
| |
|
dead portion. |
|
|
 |
|
|
|
|
|
|
