Our hedge has been fine for many years and for the first 18yrs I called it indestructible too, as this article attests, that is its nature.
The last few years it's been defying the claim of durability and we're getting spontaneous mid-summer dying of a stem at a time, really decimating our hedge.
Not much info on line about #caragana afflictions. Powder mildew and pests don't seem to be involved. Good moisture, and drainage.
Our #caragana hedge has been suffering some die-back in the last couple of years. I thought they were pretty much unkillable.
Reading a bit, I think it's prob a combination of wet weather, poor drainage (clay soil), and maybe some fungal/mildew infection. I'll keep pruning away dead stuff, and maybe try to loosen the topsoil a bit.
#DNA_barcoding used for the first time to identify genus #Caragana in #legume family.
https://phys.org/news/2023-07-dna-barcoding-genus-caragana-legume.html
The genus Caragana in the legume family is ecologically and pharmacologically important. Caragana plays a key role in the cold desert ecosystem throughout the Asian continent. However, accurate identification of taxa in the genus has been challenging.
Ross of Ottawa
CellBioNews