January: Prune fireblight
from all trees; prune mature trees.
to prove that the apples come from trees that have not been infected with fireblight
disease for at least several years.
, which is harmless to humans, is a highly contagious disease in apples and pears, and is caused by a plant-eating bacterium and a highly contagious disease in apples and pears.
Notorious bacterial problems include fireblight
that affects apples, crabapples, pears, and other members of the rose family and bacterial leaf spots that affect many plant species.
Farm ministry officials have defended the inspection procedures as ''not violating the SPS agreement'' and called it ''necessary to prevent the outbreak of fireblight
disease.'' The disease, which is present in the U.S., New Zealand and some other countries, has not been confirmed in Japan.
I should point out that advice was given as a way of reducing the risk of fireblight
- if that disease struck, that would be the end of the hedge.
Asian pears require only about 400 chilling units and are more resistant to fireblight
As a bonus, the tree also was quite disease-resistant (scab, mildew and fireblight
) and hardy to Zone 4.
Choose from the new Saphyr series which are highly resistant to the usual pyracantha diseases of scab and fireblight
and are also very hardy: Saphyr Cadange, a vigorous grower with large orange fruits from September; Saphyr Cadrou, moderately vigorous, bearing large red berries from October; and Saphyr Cadaune, vigorous with yellow berries from October.
Japan's requirements to prevent transmission of fireblight
disease are ''not scientifically based, significantly raise costs, and reduce the competitiveness of U.S.
It is better grown under austere conditions, as lush new growth is susceptible to fireblight
. The rust stage of cedar apple rust can be a problem if eastern red cedar grows nearby.
ADRIENNE SAYS: It is suffering from Fireblight
. Look out for greenish brown cankers on branches, oozing slime.