The Best Time and Method for Girdling Walnut Trees Explained in Detail
Walnut is one of the common nut trees, and walnuts also have the effect of nourishing the brain. In production, farmers often use the girdling technique to increase walnut yields. So how should walnuts be girdled? Let's learn about it together with the editor.
1. Walnut girdling time
Walnuts have extremely strict requirements for girdling; it is not that girdling can be done at any time of the year. The most suitable time for girdling walnuts is May to June each year. Girdling too early or too late will cause greater harm to the walnut. Girdling too early is not conducive to the growth of new walnut shoots, while girdling too late results in an insignificant yield increase, and the wound caused by girdling is difficult to heal.
2. Trees to be girdled
Although girdling has a certain yield-increasing effect, just like the girdling time, not all walnut trees can be girdled. Generally, girdling is carried out on walnut trees of suitable age, usually around 5-8 years old. Walnut trees within this age range have basically entered the adult tree stage and mostly have begun to bear fruit, so girdling at this time has little impact on their growth. For trees with weak vigor or young trees, it is best not to carry out girdling, otherwise their tree vigor will become even weaker, and in severe cases it may cause branches and leaves to wither and die.
3. Girdling method
Girdling fruit trees requires relatively high technical skill. In actual operation, it is best to choose experienced personnel to carry it out. The girdling tools must be sharp and need to be disinfected before girdling. The girdling position should be chosen on temporary branches, avoiding main branches such as the trunk. The width of the girdling is generally one-tenth or one-twentieth of the diameter of the girdled branch. The girdling cut is required to be smooth to avoid later healing. The depth of the girdling should be appropriate to injure the xylem of the branch. After girdling is completed, the wound should be wrapped with plastic film to prevent problems such as wind and rain exposure and invasion by pathogens, which can make the wound difficult to heal and cause infection by pests and diseases. About one month after girdling, the wound can heal. If the wound has not healed by then, the plastic film needs to be removed in time, and a fungicide should be applied to promote wound healing.
The above is an introduction to the time and method of walnut girdling. We hope it can help you. To learn more related knowledge, please keep following us.