WebSYMPTOMS: Stunted or twisted leaves, white spots or black moldy areas on the top of foliage. CAUSE: Whiteflies are small, moth-like insects that cluster on the undersides of leaves. The nymphs are translucent and can appear to be the same color as the leaves. WebMar 14, 2024 · Crown canker causes dogwood tree leaves to become lighter and curl around the edges. First, twigs and branches die on one side, and then the fungal disease …

6 common plant diseases: how to spot and treat them

WebAug 4, 2014 · You should remove any infected leaves, including dead material on the tree, and compost the material thoroughly or dispose of it to stop the disease life-cycle. … WebNov 6, 2009 · Sometimes, it is difficult to determine the cause of leaf spots among dogwoods. It is often caused by other factors like soil nutrition deficiency. However, the … cherry hill taxi rates

Variegated Dogwood With Brown Spots Home Guides SF Gate

WebSep 21, 2024 · Use pruning shears to remove branches at their base, leaving as little a stub as possible. Water the shrub at its base from now on to avoid wetting its foliage. Wet leaves are an ideal breeding ground for black spot fungus. Spray the plant with fungicide if black spot persists after all affected areas have been pruned. WebThese pests prefer to live in dead, weakened, or dying hosts. As for fungal or bacterial infections, look for cankers (discolored areas or depressed places on the bark) or mushrooms growing on the... WebApr 12, 2024 · For the last few years, our native dogwoods have been attacked by dogwood anthracnose, an introduced fungal disease that attacks twigs, branches, trunks and leaves. Trees that are already unhealthy or stressed are particularly susceptible to showing damage. If detected early and properly treated, an infected tree can often be … cherry hill tax payment online