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Mottisfont Abbey, Hampshire, is famous for roses
Credit: Marianne Majerus
Roses, the nation’s favourite flower, have been grown in beds for hundreds of years – and rose replant disease has been a thorn in the flesh of gardeners for just as long as we have been growing them.
However, until now, the cause has never been identified. Rose replant disease (RRD) is so-called because, if new roses are planted in ground where roses have been growing previously, they not only fail to thrive, they look miserable and sulk – big time.
This is a worldwide problem. Many causes have been suggested, including eelworm, nutrient deficiency and pathogenic fungi. ....

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