Common Name |
Spots |
Spots |
Scientific Name |
Alternaria, Ascollhyth, Cerospora, Septonia, Collectrichum, Gleosporium, Phyllosticta. |
|
Physical Description |
Thousands of fungi, bacteria, viruses cause spots and discoloration. Not usually serious. Fungi cause black spots on lesions. May be mistaken for chemical spray, frost, wind particle damage, pollution. | |
Life Cycle |
Fungi may enter through the soil. Others may be airborne or brought by insects. Is usually arrested by plants defence mechanisms. Ill plants will repond to attack. |
|
Damage Caused |
Attacks living cells and veins. Wilting, decay, death. |
|
Control methods |
Many do not require treatment, impractical. Ornamentals can be sprayed two or three times a forghtinght with thiram or benomyl. Maintain hygenic conditions. Do not harm or damage bulbs. Treat well in storage. Burn infected plants. |
Information Collated by James M. Burton as part of H.N.D. Course at Pencoed Agricultural College.
Chemical Information Correct as of 06:06:97. Always read and follow the instructions when using fungicides.