Horsechestnut Disease
Gary W. Moorman, Professor of Plant Pathology
| Disease | Symptoms | Pathogen/Cause | Management |
|---|---|---|---|
| Leaf Blotch | Small irregular, reddish-brown spots and large blotches with yellow halos form in late June or early July. Most infected leaves brown and fall prematurely. Tin, black fruiting structures are found in the dead areas. | Guignardia aesculi | Apply mancozeb to protet the foliage of highly valuable trees in early summer. Trees not highly valued should not be treated. |
Active Ingredient and Trade Names
| FRAC Group no. | Risk Level | Class | Active ingredient | REI Restricted Entry Interval | Trade names (EPA Reg. no.) |
|---|---|---|---|---|---|
| M | 1 | Dithiocarbamate | mancozeb | 24 | Dithane (707-180), FORE (707-87), Pentathlon (1818-251) |
DISCLAIMER
Notice: The user of this information assumes all risks for personal injury or property damage.
Warning! Pesticides are poisonous. Read and follow all directions and safety precautions on labels. Handle carefully and store in original labeled containers out of the reach of children, pets, and livestock. Dispose of empty containers right away, in a safe manner and place. Do not contaminate forage, streams or ponds.
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