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News and updates from the statewide UC Master Gardener Program office.
poppies
Comments:
by Nancy Moyer
on February 4, 2016 at 12:10 PM
Love this Blog. Thanks/
Reply by Lauren Snowden
on February 4, 2016 at 1:36 PM
Thank you for positive feedback Nancy-we appreciate you taking the time to read our blog.  
 
Thanks for your support and happy gardening,  
Lauren
by Sarah Sheehan
on February 11, 2016 at 9:39 PM
Thanks for reminding me of what I need to do for my peach tree.
by Loren Amelang
on February 21, 2016 at 6:59 PM
I've used the last of my supply of Microcop, and need to find something to use next winter. Want to stay "organic". Looks like one can buy reasonable quantities of CuPRO 5000 (which used to be Kocide branded) copper hydroxide 61.3% on the web. But while Nufarm's ChampION WG at 77.0% copper hydroxide is clearly labeled for peach leaf curl, the Kocide/CuPRO product is labeled only for ornamentals.  
 
Is this labeling issue the reason all the garden advisers suggest using the wimpy copper ammonium complex products (Liqui-Cop) with only 8% available copper? If I was spraying a huge orchard I could use the Nufarm products. If I was in Australia I could use their Tri-Base Blue copper sulphate product which probably surpasses Microcop - on label.  
 
If both the effectiveness and environmental toxicity are proportional to the available metallic copper, what do we gain by mandating low concentrations that must be applied in larger quantities? If the micro-particles of Tri-Base Blue or Microcop are more effective against the fungus, that should reduce environmental toxicity. What am I missing here?
Reply by Melissa G. Womack
on February 25, 2016 at 9:08 AM
Hi Loren, It sounds like you are an avid and experienced home gardener, we think it is best to connect you with your local UCCE Master Gardener Program to help with this and future gardening inquiries, find them at: mg.ucanr.edu/Become_a_Master_Gardener/Counties/  
Thanks!  
Melissa
by Ted Mendenhall
on February 23, 2016 at 4:46 PM
What is you opinion on copper soap for peach/nec.
Reply by Melissa G. Womack
on February 25, 2016 at 9:09 AM
Hi Ted,  
Copper soap (copper octanoate) fungicides is an acceptable product, and preliminary research indicates they may provide some protection of trees.Learn more here: http://www.ipm.ucdavis.edu/TOOLS/PNAI/pnaishow.php?id=90  
Best,  
Melissa
by Loren Amelang
on May 12, 2017 at 12:13 PM
So I acquired some CuPRO 5000, and actually got it applied mid-December during a rare dry spell. Best chance of sticking for many years - I thought. Most trees now have just a few partially affected leaves, comparable to what I saw when my Microcop got washed off too soon.  
 
But one tree has those plus maybe 10% of the leaves absolutely huge, maybe 2X normal length, 4X normal width, as thick as curly red cabbage, and all twisted around into a pear-sized lump! The undersides are partly whitish, and the tips and some edges are dried and curled. I'm not seeing any leaf curl images nearly this extreme on the web. Maybe this is something else?
by Travis Young
on July 20, 2019 at 6:39 AM
my nectarine tree gave fruit mummies for many years already. Since we planted 2 trees in front yard at least 7 yrs ago, we only had the fruit the next year after and that was all. what are the treat other than just prune and remove mummies? thanks so much for the tips, I really do appreciate the reply.
 
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