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Cedar-Quince Rust

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18-Apr-2002	#1
deadgecko bonsaiTALK Craftsman Join Date: Dec-2001 Location: Loveland, Ohio Country: USA USDA Zone: USDA 6 AHS Heat Zone: ? Posts: 59	Cedar-Quince Rust I was out looking at my trees last night after a thunderstorm and noticed what I think might be cedar-quince rust on a rocky mountain juniper I have in training. There is a nice orange gooey mess at the juncture of a few branches and the trunk. It circles the branches, there is even some at the site of some old pruning scars. After some research, it looks like the "cure" is to remove the affected areas, disinfecting the tools with rubbing alcohol between cuts. Does this sound like the proper course of action? What are the chances that the rust will reappear after removing the infection? __________________ Deadgecko Cincinnati, Ohio USDA Zone 6, Sunset Zone 35 "Who says nothing is impossible? Some people do it everyday" Alfred E. Neuman

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18-Apr-2002	#2
TreeBay Tips:5¢ Advice:Free *MODERATOR GROUP* Join Date: Aug-2001 Location: Silicon Valley Country: USA USDA Zone: 9 AHS Heat Zone: 4 Posts: 9,745	Re: Cedar-Quince Rust Do you have any way to take a picture of this nasty stuff? Regards, Matt __________________ Want to be a seller on bonsaiAUCTIONS? Get authorized today! bonsaiTALK: Over 100,005.36 Megabytes Served this Month!

2-May-2002	#3
Moni bonsaiTALK Expert Join Date: Feb-2002 Location: Clackamas Country: USA USDA Zone: 7 AHS Heat Zone: ? Posts: 171	Re: Cedar-Quince Rust Yup. Sounds like rust to me. This is a fungus that basically has two host plants and from year to year, jumps back and forth between the two. One of the host plants is usually of the HUGE Rose family which includes most fruit trees. Hence, the ever popular Cedar Apple Rust. Your best bet would be to treat the fruit tree involved. It is the spores on the leaves of the fruit tree that flit over to your juniper and cook up that jelly. It is either that or remove one of the hosts. From what I have found, there are not alot of fungicides listed that will control this fungus. All OSU recommends is Bayleton 25, Fore (80% mancozeb) and Zyban. I don't kknow where you will be able to find those. I don't recall seeing them in any of my local Nurseries. Try calling your local Extension Office and tell the Master Gardeners the symptoms on your tree. They might have more local info than I can give you. Moni

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