Affected apricot trees
The apricot tree is one of the fruit trees in the home garden that are particularly susceptible to resin flow. It can also be observed that mostly young or old trees are affected. This is because they have either not yet developed their full resistance due to unfavorable living conditions or have already lost them.
also read
- Apricot tree - achievable size and its influencing factors
- Fertilize apricot tree - how to get enough nutrients
- Apricot tree: recognize diseases in good time and act
Disease outbreak
Resin flow is a physiological disturbance of the apricot tree, which is easily recognizable from the outside. Resin-like growths appear on branches or on the trunk. They are reminiscent of the resin of the conifers, but are formed from dissolved plant tissue.
The resin mainly escapes from injured parts of the tree. The cracks can also be very small and barely noticeable. Occasionally, fruits can also be affected by resin flow.
Causes of resin flow
The flow of resin that occurs is not a symptom of any particular disease. Rather, it is a feature of a weakened apricot tree. There can be various causes for this weakness:
- heavy and wet floors
- Frost and moisture
- Injuries to the bark from frost or when cutting
- mistake at fertilize
But also various diseases such as curl sickness, Monilia, Valsa disease, and junk shot disease can weaken the tree to the point of developing gummose. Likewise the pest bark moth.
effects
The exit points are open gates for pathogens and thus favor the outbreak of other diseases. But the resin flow can also spread inward. Then it clogs the tree's supply channels. The affected area is no longer properly supplied with water and nutrients. Because of this undersupply, it dies over time. In the worst case, the entire apricot tree can even die.
Act right
Optimize the living conditions of the tree in the future in order to avoid further weakening or to strengthen him. An apricot tree that is already resinous must be countered with pruning measures.
- Cut the affected branches back to 20 cm long cones
- Resin flow forms on the cone
- this dies over time and can be removed
- so the remaining healthy tissue is not damaged
Tips
Endangered apricot trees should generally be cut in the summer after harvest. This promotes rapid wound healing and slows down growth. Under no circumstances should scissors be used in winter.