1 |
Cedar Apply Rust |
Gymnosporangium juniperivirginianae |
bright yellow-orange spots on leaves and fruits with cup like aecia on the undersides from which spores are released |
Spray |
2 |
Apple Scab |
Apple Scab |
olive green to brown leaf lesions. With age, the leaves wilt and appear distorted |
Spray / Drench |
3 |
Powdery mildew |
Podosphaera leucotricha |
dusty white velvety coating on leaves and fruit |
Spray |
4 |
Anthracnose/ Bull's eye rot |
Cryptosporiopsis curvispora |
small sunken water soaked lesions on the fruit surfaces, light brown in colour |
Spray / Drip |
5 |
Blister Spot |
Psuedomonas syringae |
small green blisters on apple buds and fruits |
Spray / Drench |
6 |
Fire Blight |
Erwinia amylovora |
black scorched twigs and leaves |
Spray |
7 |
Crown gall |
Agrobacterium tumefaciens |
large outgrowths above the soil line on the stem, between the root and stem |
Spray / Drench |
8 |
Spray / Drench |
Pseudomonas solanacearum |
yellow wilted leaves resulting in defoliation |
Drench / Drip |
9 |
Phytophthora crown and root rot |
Phytophthora sp. |
wilting; reduces growth; discolouration of bark |
Drip |