In general, the reason why the leaves grow is that in the growing season, the surrounding ground has been treated with herbicide. In the winter, the temperature is too low to cause root necrosis, so even in the warm spring, in this very suitable season for germination, trees begin to sprout and grow leaves, but because the roots are already dead, there is no way to provide Nutrients, so after the original nutrition of the trunk is sucked up, the leaves will be short of continuous nutrients, so the leaves will start to grow and then die. So how to do it? Because the whole tree trunk is dead at this time, so we can only learn a lesson at this time that we can't remove too much vegetation in its growing season next time, or it may not be able to withstand the temperature in winter
The soil is impermeable, making the root unable to breathe, and then it will gradually tend to die. The slimy soil is not suitable for planting this plant at all, because the root of this plant is very shallow. If the root is immersed in the waterlogged soil for more than 24 hours for a long time, the root will die of suffocation because there is no way to breathe. So it's better to change the soil in time, change some loose soil
If you can't determine the cause, you can first look at the soil. If the roots of plants have round black or brown spherical objects, then this is the root nodule. If you find that the leaves have already developed, it means that the plant is basically not saved. At this time, Sima can only be used as a live horse doctor. You can peel off the soil, remove the root nodules, and then mix the rooting agent and bactericide into the root.
Insect damage can be seen, if the trunk is not a sign of being drilled, it is not insect damage, if there is, prepare insecticides to kill.