A disease of blackcurrant bushes in which the buds become swollen due to the presence of gall mites.
（由瘿螨引起的）大芽病，巨芽病
The mite is Cecidophyopsis ribis, family Eriophyidae
Example sentencesExamples
During the winter I renovated an old row of redcurrants, quite successfully it seems, but now I realise that I have inadvertently retained a blackcurrant bush that has big bud reversion.
Look to blackcurrants for ‘big bud’; pinch off infected buds and burn them.
It is spread by a mite vector, the blackcurrant gall mite, or big bud mite, Cecidophyopsis ribis.
We've been asked not to have bonfires on the allotment, and fair enough but what to do with a big blackcurrant bush uprooted due to big bud
Always watch out for Big Bud in the Spring and pick off the bigger buds before the trouble gets a real hold.