Help, my Zygo is rotting - Page 3 - Orchid Board

King_of_orchid_growing:) · #21 03-04-2011, 11:44 AM

Alright...

This may not be a true SH technique, but I've grown it successfully in diatomite (Aussie Gold to be precise). Works like a charm for a lot of these Zygopetalinae.

camille1585 · #22 03-07-2011, 02:28 PM

I think it's hopeless.

Despite lots of hydrogen peroxide and cinnamon, the rot is progressing at an incredible speed. The remaining growth (that I had cleaned up) is continuing to go brown. The newest PB is rotting and I bet it won't be long until the older one goes the same way.

Think this plant is ready for the compost heap.
And so goes my first attempt at growing a Zygo. Too bad, I loved the blooms.

RosieC · #23 03-07-2011, 03:49 PM

What a shame Camille

alsorchids · #24 03-07-2011, 06:12 PM

I am sorry about your Zygo. AL

NeoOrchid · #25 03-07-2011, 06:31 PM

"...there's a freakish amount of roots. If anything it needs a bigger pot, I could barely stuff it back into the current one."....

Yes!! My son recently bought a beautiful zygo for me (my first) and I was recommended to repot it. And yes, it has gobs of root! Healthy green and white root, really no excuse to remove any of them. So I did use a larger pot. I hope I didn't do a bad thing...I'm feeling your pain Camille; I'm starting to see similar problems in a cymbidium I bought online. However, I think my damage was done when the Midwest U.S was hit by a huge blizzard and slowed the shipment of my cymbidium. It was just bad timing, not the growers fault. Good luck to you, it looks like you may have salvageable orchid there!

Cheers and Blessings
Neo

silken · #26 03-08-2011, 01:36 AM

Not sure if its any help Camille, but I have a colmonara that acted like your zygo. No matter how often I cut away the rot, it just moved further into the plant. I finally got quite aggressive and cut all of the pb's off except several that were for sure not infected. I re-potted in new moss and bark combo but first I thoroughly dusted everything pb's and roots) with garden sulfur powder and made sure there was a bit in the potting media too. 6 months later there are new roots and growth and no sign of rot.

camille1585 · #27 03-08-2011, 04:42 AM

Silken, I think that's what I'm going to do. Cut off the growth and rotted bulb, and hope the sole remaining bulb stays healthy. If it rots, then that's the end of it. I wish that disease control products were easier to find here. I have plenty of things at home in france, but I'm not going back for another 5 weeks.

Discus · #28 03-08-2011, 05:33 AM

Most pharmacies I've been to around the world stock old, traditional remedies like sulphur - the stuff you get for humans will work just as well on plants!

King_of_orchid_growing:) · #29 03-08-2011, 12:54 PM

You've got 1 good bulb and strong roots? That's totally enough to bring it back.

camille1585 · #30 03-10-2011, 06:15 AM

Quote:

Originally Posted by King_of_orchid_growing:)

You've got 1 good bulb and strong roots? That's totally enough to bring it back.

Yup. I performed surgery on it yesterday. The rhizome between the new growth and recent growth was completely brown inside, but luckily the one connecting the newer bulb to the older one still looked healthy.

Since I removed the bulb+growth I then had to unpot to pull out all the roots that were no longer attached to anything. Don't want them rotting in the pot. Even so, it still won't fit in a smaller pot, so it went back to its 12cm pot. I put H202 on the cut rhizome, and then applied some cinnamon. Also put some all over the bulb, I don't like the look of the black spots on it.

If it does stay healthy, the good news is that there is a dormant eye on the bulb. Shouldn't take long for it to start growing.