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Pear Rust - Diseases

Pear Rust - Diseases

Pear Rust - Diseases

Why has my pear tree got rust spots on?

It sounds like you may have European Pear Rust, a fungal infection. It’s best if you can remove the affected leaves and destroy them to prevent the spores spreading. If this isn’t possible then ensure you rake all the leaves up in the autumn and burn them (don’t compost them).

It’s also worth noting that the fungus over-winters on Junipers so if you have any in the vicinity, look for rust infection on the stems and prune out any that are infected (or if necessary and remove the Juniper entirely). There are a few fungicides available in garden centres that you can spray on the tree to control the rust - look for Difenoconazole or Myclobutanil as the main ingredients such, as Westland’s Plant Rescue Fungus Control. Use a liquid concentrate and make sure that you read the manufacturers instructions regarding the time period required between applications and harvesting the fruit.

Sue Sanderson T&M horticulturalist

Written by: Sue Sanderson

Plants and gardens have always been a big part of my life. I can remember helping my Dad to prick out seedlings, even before I could see over the top of the potting bench. As an adult, I trained at Writtle College where I received my degree, BSc. (Hons) Horticulture. After working in a specialist plantsman's nursery, and later, as a consulting arboriculturalist, I joined Thompson & Morgan in 2008. Initially looking after the grounds and coordinating the plant trials, I now support the web team offering horticultural advice online.