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The Guardian - UK
The Guardian - UK
National
Helena Horton

Silicon tested in search to defeat the dreaded rose black spot

RHS Disease David Austin
Experts are looking at alternatives to harmful fungicides for the treatment of black spot.
Experts are looking at alternatives to harmful fungicides for the treatment of black spot. Photograph: kemirada/Getty Images/iStockphoto

The velvety petals and sweet scent of a rose make it a classic of the traditional English garden.

But growers and gardeners have long cursed a disease that has ravaged the delicate beauty of their favourite flowers: black spot. Now scientists at the Royal Horticultural Society (RHS) are trying to find an answer to the problem.

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