- 07 Nov 2006
This certainly appears to be a Sherlock Holmes mystery. I don't think that a picture of the white stuff etc, would be of much help to some of us. You have given quite a good detailed outline of the area, progress etc. Sadly also, the final death knell of your shrubs. The privet [Ligustrum] hedge estimated as some 80 yrs old. Generally speaking. Ligustrum is as hard and long suffering as Methuselah. If any thing, Ligustum can at times be blamed for the demise of closely planted other specimens. It contains various acids and other chemicals that can be used as herbicides etc, and pesticides. Notice that very few bugs etc, live on the privet hedge. Offending subtance,=powdery, fluffy. Time lapse during which other shrubs have fallen foul of the problem. Then the distance seperating affected specimens.
David, Aldershot. Military area. My original studies etc in science and practice of turf culture etc, which delved below ground level. I have to admit. This has got me bogged down. OK the hedge is considered to be many years old. How long has your house stood on that site? Truthfully. This is a total stab in the dark. I do most honestly hope that my assumption is WRONG. For some reason, all my faculties, suggest something toxic in the soil rather than a form of fungi. Fungi, once having established itself, moreoften than not, increases at an alarming rate, due mainly to 'spores'. Your garden enemy, seems to be taking it's time at penetrating your garden. From experience. Years ago the local chemist/pharmacist would do a quick test on soil or other samples. Take a few samples of the questionable substance, and get it to an analytical chemist. If you are a member of the RHS. Pop it along to Wisley. Might not cost you anything. Like I say/imply. To me it sounds too much like a toxic whatever. Not some drainage from the playing fields etc, but something that over time has leaked, from within the ground. Sometimes, gas leakage under ground has caused drastic effects, especially in cases of the London Plane Tree.
Please keep us all informed. As I say. I do hope that I am WRONG.