Mend it rather than assign it to the duster box.
They are wise words but it can often be very difficult to achieve a successful and professional looking mend.
A cashmere jersey is an investment and as such you want to optimise the life span of the garment. But Cashmere wool is so soft and delicate that it tends to wear away in areas where the wool undergoes constant rubbing, underneath the arms is the classic example of this.
If you decide to mend the damage then there are a few salient points that you will need to take into consideration.
If the jersey has been well worn and washed then it is highly likely that the hue of the wool will have faded. The only way to overcome this problem is to take the garment along with you when you go to purchase the skein of darning wool. If it is possible then it you will need to buy a skein of one-ply darning wool that will create the finest mend possible.
It may well turn out that you will have to settle for the nearest possible shade to the garment that you intend to mend.
You will need little in the way of equipment to carry out the mend, just the darning wool, a wool needle and a darning egg.
Thread the needle and examine the damaged area well before you begin to sew.
You will repair the damaged area by using a process that is akin to weaving.
Work with the right side of the garment closest to you and slide the darning egg inside of the jersey placing it directly underneath the hole.
Once the darning egg is in the right place then you are ready to start work on your mend.
As with anything that you darn you must not stretch the wool as you work, if you do the repaired area will be larger and far more noticeable.
You are going to slide your darning wool underneath the hole leaving a few centimetres of darning wool laying at the back, pick up a stitch on the outer edge of the hole and then take your needle across to the other side of the hole and pick up a stitch on the edge of the far side.
You repeat this process until you have created a framework for your mend.
At this stage the hole should have a row of neat lines of darning wool running across the face of it.
Turn your work and repeat the same process, so you will be creating a mend by weaving the second row of darning wool in between the first rows of the woollen framework.
The idea is that you will make the mend using a warp and a weft thread.
There is no need to make knots in the darning wool to secure the ends, that can make unsightly lumps and bumps in the finished repair. The woven darn will be strong enough to stay in place.
Darning smaller area of damage is often very successful and it can breathe life into a well worn garment.