I have 5 fully grown evergreen fir trees, minatures- between 3-10 feet high, have had them for about 11 years. One has died earlier this year and I can see the others are all browning from the centre . Is this likely a disease, their age? I have never fed them or put anything on them.
Can anyone tell me how I can stop the progression of whats killing them. If its a disease does this mean the soil is infected and I can't plant new ones?
Thanks.
Can anyone tell me how I can stop the progression of whats killing them. If its a disease does this mean the soil is infected and I can't plant new ones?
Thanks.