When the trees are despion

I'm interested in spot phenomenon. I met this term in the fertility directory. Explain what it is?

Indeed, there is such a term in fruit growing. He denotes frelling vaccination From stock. It happens in cases where the seizable pairs are incompatible with each other. Fuel can occur Not only in the first years after vaccination, but even after many years, when the tree is big and fruit. Under the influence of a strong wind, the tree falls, but there are no floors and disorders. Disposal sites on the remaining stump and wood wavy, but the surface is smooth and brilliant. Waves diverge from the center of radical lines. This is the result of the incomplete compatibility of the lead with a trip.

In practice, the agricot trees, grafted on plum or the thorns, and the trees of pears, grafted on the apple tree, most often. Such plants can be saved if you know about this phenomenon and securely strengthen them.