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Post by hal on Aug 8, 2013 21:35:09 GMT -5
In the few years that I've been keeping pings I've had some mysterious catastrophic losses. One day the plant looks fine and 3 or 4 days later it's gone. All the leaves fall off and are brown at the base. I thought it was crown rot from over watering, but with reduced watering it was still happening. Then I drastically reduced the peat in my mix, but every so ofter it would still happen. It happened to a P. colimensis that Lloyd gave me and I felt really bad about it. Today I came home to find this P. agnata, that was perfectly fine a few days ago, looking like this: The only thing you're not seeing is the slug that was happily munching on the base of the leaves, because I washed it down the drain as soon as I discovered it!So that's it. Damn slugs. I use water from a rain barrel so I guess they get in that way, maybe as eggs. Come to think of it, this problem never happens in the winter. So no more rain water for me.
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Post by 31drew31 on Aug 8, 2013 22:29:25 GMT -5
Aww man thats a sad sight! Ive found 2 small snails with my plants but never slugs, hope I dont ever. I lost a few plants this year to the brown heart thing like you describe hal. From some reading it sounds like nematodes. They got all my adult jaumavensis, ehlersiae and esseriana. Luckily I had extra pullings growing up. My experience is once you notice, its too late. Pullings from these plants dont do well for me. I lost jaumavensis and esseriana around the same time, so when I noticed ehlersiae with it I pulled it 100% apart (full size plants) and the pullings took, but never grew and eventually rotted away. I remember reading Joesph Clemens would dust his plants and media with ground up freeze dried blood worms, in hopes of limiting the growth and spread of nematodes. More here: carnivorousplant.com/growing_pinguicula_detailed.html
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Post by lloyd on Aug 8, 2013 22:54:12 GMT -5
I'm pretty sure I don't have slugs but I get the same problem. I'm convinced it's a virus or fungus.
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Post by stevebooth on Aug 9, 2013 7:43:25 GMT -5
Hi - I tend to agrree with Lloyd, I'm not great with pings but am very familiar with slug damage! Those leaves dont look to have been chewed off, more like dropped off, you can still see the 'clasp' (on most of the leaves) where it was attached to the plant, I'm afraid it looks like rot or fungus.
Good luck Steve
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Post by shoggoths on Aug 9, 2013 9:51:04 GMT -5
Hooo, that’s really nasty Hal. Sorry to hear that. I don’t usually bring outside stuff in my grow room but I was planning to use some rain water soon. I’ll not try it, thanks to you.
About pings dying, the problem is that they all seems to die the same way with the same symptoms BUT (the more I think about it) it is not always from the same illness.
Gathering the information together, I think we (ocps pings growers) have at least suffered 4 different illnesses types.
1 – Core rot – Probably from too much watering especially in the succulent period. The core and the leaves tips turned brown. Other than that, no visible pest. About this, I was wondering if someone has notice if their pings keep their roots in succulent phase. Mine seems to loose them. If so, I think this information could boost the way of thinking that letting the media dry but raising air humidity in succulent phase in ideal;
2 – Core rot from nematodes – Same symptoms as above but small nematodes can be seen around the roots;
3 – Snail attack – I think like Hal’s picture. I must admit some of the leaves tip seems to have been chewed. Can you confirm it Hal ? Or, like in the other case, there’s still a small white/brown bit at the tip of the leave ? Does the heart of the ping is also brown and dead?
4 – Finally, bad cleaning from tissue cultured plants. Last year, when we bought some pings from BCP, one was prone to rot really quickly after I put it in my usual mix. I wash it thoroughly and put it back in pure dry sand with high humidity until it sends new roots. That’s save it.
In the end, probably # 1 and 4 result from fungi. I’m starting to dress the top on some of my ping with pure sand and also always watering from the bottom. Let see what will come out of this. This wat, my pins seems to develop longer roots.
Good luck Hal, I’ll start new agnate leave pulls for you.
Shogg
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Post by hal on Aug 9, 2013 11:28:30 GMT -5
Thanks for the feedback.Looking at it more rationally in the light of day I think the slug may have been coincidental, or it was just going for a weakened plant. I'll do some research on the nematodes.
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Post by hal on Aug 9, 2013 22:13:58 GMT -5
Has anyone had any success with Trichoderma? If so, where did you get it?
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Post by 31drew31 on Aug 9, 2013 22:58:06 GMT -5
I have a bunch hal that I need to use up. Ill include some for you. I got it from AmPac Biotech.
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Post by 31drew31 on Aug 13, 2013 20:12:57 GMT -5
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Post by hal on Aug 13, 2013 20:55:18 GMT -5
Thanks Drew, I did some research and read that on the weekend, too. I have another ping that looks like it's stressed and the roots are going black. So I'm treating it with Benomyl and some horticultural sulphur. I'm also planning to stop recycling media, which I do if it's not too green and mossy.
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Post by 31drew31 on Aug 13, 2013 22:52:09 GMT -5
If its all mineral you could probably nuke it in the stove. Ive been reading about nematodes, and I might try some beneficial nematodes to eat the bad ones if that is the case. Rona has the on their website but Im going to read some more first.
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Post by shoggoths on Aug 14, 2013 9:39:19 GMT -5
I've seen those too ... let me know what comes out of your reading.
I was interested but really not sure about it.
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