Saturday, August 5, 2017

Return of the rusty menace

Height summary table:



The last remaining sequoia at the old location is once again covered with the disease that killed so many last fall:


Here is a zoom in on the affected needles:

And even more zoom:

And more:

The disease forms brown oval-shaped spots on green surfaces of needles and stems.  

I sprayed Daconil on #208 with about 10x concentration of a regular solution. From experience a plant affected by the decease at this level would not survive. With little to lose this treatment is yet another experiment:


The rest of the trees at the permanent location have not started showing signs of disease yet. The growth is not as strong as last year, especially with the older 4 and 5 year old trees. The younger seedlings are doing about same from height growth perspective as previous years but perhaps a bit slower.

#104 August 4, 2017 Almost 5 years, 43"