Exclusive: RHS says queries about diseases down 45% in good sign for May blooms such as lupins and iris
Plant diseases are at their lowest levels in the UK for years because of a cold, dry spring, meaning it could be a bumper year for apples, and popular blooms such as iris are likely to be spectacular.
The Royal Horticultural Society (RHS) said years like this may be few and far between in the future, as the climate becomes warmer and wetter, creating ideal conditions for pests. But this year, spring favourites such as quince and hawthorn are doing well, with gardener queries to the charity about plant diseases on their plots down 45% on last year.
(SOURCE) https://www.theguardian.com/environment/2022/may/10/uk-dry-spring-keeps-plant-diseases-at-bay-rhs