| Chrysanthemum |
|
|
|
| Verticillium |
Leaves wilting, dying, |
No practical control. |
| wilt |
sometimes on one side; |
|
| |
vessels black. |
|
| Dodder |
Orange vines with white |
Cut off and burn all parts |
| |
flowers get a stranglehold. |
with any trace of tendrils |
| |
|
before dodder sets seed. |
| Citrus |
| Citrus fruils have a great number of enemies, including numerous species of scales, whiteflies, mites, mealybugs, |
|
|
thrips, aphids, and various |
| rots. A spray schedule for Florida differs from one for California. Consult your own county agent. |
|
| Clematis |
| Root-knot nem- |
Stunting, sometimes wilt- |
Remove infested vines; |
| atode |
ing and death. |
treat soil before replanting; |
| |
|
see Nematodes. |
| Clematis borer |
Bores in roots. |
Treat soil with chlordane |
| |
|
or DDT. |
| Blister beetle |
Black beetles chew flowers, |
Spray or dust with DDT. |
| |
leaves. |
|
| Coleus |
| Mealybugs |
White cottony insects |
Use phosphate aerosols in |
| |
crowded at leaf axils. |
greenhouses. Dip house |
| |
|
plants in nicotine-soap so- |
| |
|
lution. |
| Whiteflies |
Myriads of small white flies |
Spray with DDT, or a |
| |
underneath leaves. |
phosphate. |
| Columbine |
| Leaf miner |
White, winding tunnels al- |
Spray with DDT or lin- |
| |
most always in leaves. |
dane. |
| Columbine |
Salmon caterpillar bores in |
Scratch soil around plant |
| borer |
crowns. |
to kill eggs; work in DDT |
| |
|
or chlordane dust. |
| Aphids |
Many species infest leaves. |
Any contact insecticide. |
| Coreopsis |
| Four-lined |
Small tan circles in new |
Dust with DDT or rote- |
| plant bug |
leaves. |
none. |
Garden Plants and Their Problems
