Botanically, rhododendrons and azaleas belong to the same genus, Rhododendron, and are affected by the same problems. These plants require well-drained, light, acidic soil and need adequate moisture ...

Possible diseases include powdery mildew ... and amending soils high in nitrogen or with high pH levels. Rhododendron leaves ...

Silver leaf is a fungal disease caused by Chondrostereum purpureum ... painting wounds of susceptible trees might be the less harmful option. Laburnum, poplar, Prunus and rhododendron are examples of ...

They can jump or fly short distances and most do not feed on or cause noticeable damage to garden plants. Find out more about British species from British bugs. Rhododendron leafhopper only feeds on ...