Kylmäkarsinta

Kylmäkarsinta, a Finnish term that translates to "cold thinning" or "cold selection," refers to a technique used in forestry and horticulture. In forestry, it involves the felling of trees during the coldest months of the year, typically in winter. This method is often employed for trees that are less desirable, such as those with poor form, disease, or those that are overcrowded. The cold temperatures can make the wood harder and less prone to sap bleeding, potentially reducing insect infestation and disease spread during the felling process. This practice helps to manage forest density, improve the growth of remaining trees, and prepare the forest for future harvesting.

In a horticultural context, kylmäkarsinta can also refer to the removal of weak or damaged shoots from plants during winter dormancy. Similar to its forestry application, this process is done when temperatures are low, making plant tissues more rigid and easier to handle without causing as much damage to the surrounding healthy growth. The goal is to improve the plant's structure, promote vigorous new growth in the spring, and prevent the spread of diseases that might be more active in warmer conditions. This practice is particularly common for fruit trees and ornamental shrubs. The term emphasizes the timing and the selective removal of less viable parts to foster healthier development.