The inventory result of the area showed that infection rate among cypress trees in Hassan Abad is 52%, in this study 2104 trees were examined among which 1094 number of them were infected to Die back
. Distribution of diameter and height of damaged trees showed even-aged curve (with a little Scenes to left), (picture 5).It should be noted that since the afforested area has been even-aged mass, by increasing the bases based on diameter on height the amount of damage has gone up equally, so that distribution of infected trees complied the even-aged curve.
. Cut down marginal plants as their leaves die back
for the winter.
As herbaceous plants die back
, cut them to the ground and compost the cuttings.
The specialist reported that the trees are showing visible signs of "die back
", coupled with cavities and internal decay and that they must be removed to avoid them becoming a potential danger.
There were areas covered with short-lived Virginia pine starting to stagnate and die back
. There were old fields filling with brush.
As they naturally die back
you should prune, repair supports and put protection in place before the really cold weather.
As perennials, they die back
completely in winter, the new spear-like shoots of the tightly rolled leaves appearing in spring.