Acer tar spot

Time to act:

Jun

The fungus Rhytisma acerinum overwinters on fallen acer leaves, then infects the new spring foliage. The first signs are yellow leaf spots that turn into large shiny black blotches up to 1.5cm across. Severe cases can mean the leaves drop early, but the health of the tree won't suffer.

Symptoms

An outbreak of shiny black blotches, edged in a ring of yellow, disfigure acer leaves in early summer. This can lead them to fall prematurely.

Find it on

acers

Advertisement

Organic

Rake up and dispose of all fallen infected leaves.

Advertisement

Discover more ideas and inspiration

Related content

Clematis wilt

Hollyhock rust

Iris leaf spot

Powdery mildew

Related offers

HALF PRICE

Half-price tree collections

Winter is one of the best times to plants trees, so Hayloft are offering a selection of fantastic half-price tree collections, including the gorgeous Malus coccinella (pictured) - buy one for £15, or three for just £21.

Order now

HALF PRICE

Award-winning roses

Buy one award-winning rose variety for £14.99, or buy the collection of all three varieties ('For your eyes only', 'Scent from heaven' and 'Sunny sky') for just £22.49 - half price.

Order now

Offer

Buy one, get one free on roses

Choose from two collections, each comprising three gorgeous ground-cover rose varieties. Add two collections to your basket (either the same collection twice or one of each) and one will be automatically discounted at checkout.

Order now