Boxwood Diseases - Buxus Panic?
The humid summers of the past two years have in many places provided for severe mold infestation in Buxus throughout Western Europe.
There are two different fungi because Cylindrocladium buxicola and Volutella buxi. Both fungi cause leaf and taksterfte. The attack usually begins with Cylindrocladium and can be followed by a secondary deterioration of Volutella. Both fungi are therefore to be fought.
Description of fungal diseases:
Cylindrocladium: The attack begins with black spots on the leaves. After a few days the affected leaves fall off en masse and there are black marks on the young twigs.
These diseases are a proper treatment well under control. When some damage but no treatment is performed, the damage can be enormous. This damage type usually begins with a few small spots and then the second year to grow into large affected areas. This year there from May damage observed, probably due to the very warm April Mon The greatest damage occurs in summer and autumn, especially in humid conditions. Extra vigilance is certainly needed.
control:
nursery / landscaping: There are multiple treatments for disease control. A good variety of used fungicides is needed to prevent resistance. All information available through the warning system for floriculture.
Prevention: Through an adequate measure of the disease strongly reduced.
Good hygiene is recommended but is not guaranteed to stop the disease. Avoid contact between infected plants and healthy plants.
In gardens with automatic irrigation is better, in periods of drought, a lot of water once a week to give than to spray every day. This way the plants can dry better and the fungus is less likely. The use of drip irrigation is recommended.
Also judicious fertilization can occur much suffering. Plants that grow in a quiet way, are less susceptible to degradation.
Variety in the assortment is also a lot of problems. Avoidance of sensitive species would certainly consider. Some species show no or little boxwood sensitive.
The way we use the box, has a great influence on the occurrence of these diseases. Dense massifs, shaved and forms clouds are more susceptible to degradation than naturally grown bushes. In these gardens some extra care certainly appropriate.
Solid boxwood
conclusion:
Most people have always assumed that nothing could happen with box. However, this prejudice creates problems for many illnesses that can enable very little or not addressed. An adequate monitoring and treatment according to me the only solution to this scourge under control. Boxwood is now an easy and rewarding plant for the garden. Disease at the box compared to other garden plants (eg roses and fruit trees), but never higher.
The humid summers of the past two years have in many places provided for severe mold infestation in Buxus throughout Western Europe.
There are two different fungi because Cylindrocladium buxicola and Volutella buxi. Both fungi cause leaf and taksterfte. The attack usually begins with Cylindrocladium and can be followed by a secondary deterioration of Volutella. Both fungi are therefore to be fought.
Description of fungal diseases:
Cylindrocladium: The attack begins with black spots on the leaves. After a few days the affected leaves fall off en masse and there are black marks on the young twigs.
These diseases are a proper treatment well under control. When some damage but no treatment is performed, the damage can be enormous. This damage type usually begins with a few small spots and then the second year to grow into large affected areas. This year there from May damage observed, probably due to the very warm April Mon The greatest damage occurs in summer and autumn, especially in humid conditions. Extra vigilance is certainly needed.
control:
nursery / landscaping: There are multiple treatments for disease control. A good variety of used fungicides is needed to prevent resistance. All information available through the warning system for floriculture.
Prevention: Through an adequate measure of the disease strongly reduced.
Good hygiene is recommended but is not guaranteed to stop the disease. Avoid contact between infected plants and healthy plants.
In gardens with automatic irrigation is better, in periods of drought, a lot of water once a week to give than to spray every day. This way the plants can dry better and the fungus is less likely. The use of drip irrigation is recommended.
Also judicious fertilization can occur much suffering. Plants that grow in a quiet way, are less susceptible to degradation.
Variety in the assortment is also a lot of problems. Avoidance of sensitive species would certainly consider. Some species show no or little boxwood sensitive.
The way we use the box, has a great influence on the occurrence of these diseases. Dense massifs, shaved and forms clouds are more susceptible to degradation than naturally grown bushes. In these gardens some extra care certainly appropriate.
Solid boxwood
conclusion:
Most people have always assumed that nothing could happen with box. However, this prejudice creates problems for many illnesses that can enable very little or not addressed. An adequate monitoring and treatment according to me the only solution to this scourge under control. Boxwood is now an easy and rewarding plant for the garden. Disease at the box compared to other garden plants (eg roses and fruit trees), but never higher.
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