Challenging the Bonsai A to Z entry for Fireblight.
We may not get it right all of the time, entries are added from all over the world and the
meaning of the text may be slightly blurred for some of our users. If you would like to add to, clarify or change an entry then just let us
know by typing your amendments in the box, we will check it out and update the entry where necessary. Thanks a lot, we really appreciate
everyones help in keeping the A to Z of Bonsai accurate and up to date.
Fireblight is caused by a bacteria (Erwinia amylovora) which first attacks the blossoms progressing to the twigs and then the branches. Flowers turn brown and wilt; twigs shrivel and blacken, the ends often curling. In advanced cases discoloured oozing red/amber patches, form on branches. The translucent amber or reddish ooze (see image) contains masses of bacteria.
Most susceptable are : varieties of pear and apple trees (including crab apple), mountain ash, hawthorn and cotoneaster.
Treatment involves sparaying shortly after bud break, with systemic fungicide. Repeat the spray at one to two month intervals, more frequently in high disease situations.
Prune out infected branches 12 to 16 inches beyond the last visible signs of the disease on the branch. It is critical that the pruning tools be sanitized after each branch is pruned, so as to prevent spreading the disease form branch to branch.
There are 818 entries in the A to Z and the
pages have been viewed 4171732 times. Help us to increase the number of relevant bonsai terms included in this A to Z of Bonsai Terms. We include
manufacturers and dealers in the dictionary, if you are one or know of one not mentioned then just click the
link above and add an entry. If you have a favourite bonsai tree not mentioned just add an entry. We are trying to create a unique single
free source for all bonsai terms and hope to capture worldwide bonsai terms for bonsai trees, bonsai clubs associations and national collections
and the A to Z is free marketing for bonsai businesses and bonsai clubs.