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Poison Drink


Registered: 11/15/10
Posts: 841
Loc: W-Europe
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Re: Coca growers [Re: Mateo]
#26042177 - 06/09/19 04:36 PM (4 years, 7 months ago) |
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I once tried those predatory mites against spider mites, but it didn't work out. There was quite an extensive population of spider mites though, since they were already building webs in the new growth. Although I cut off all the badly affected branches and disposed of it properly, the predatory mites couldn't eradicate the spider mite population. I tried to give them the appropriate living conditions but to no avail. There's a couple of different predatory mites that could be used against spider mites, so maybe another one would have worked better in my situation. I'm interested in reading your experiences, Mateo! I would much prefer using predatory mites over 'chemicals'. Also, it's really unpleasant to chew leaves that have been sprayed with pyrethum in the past.
I have used a different kind of predatory mites against fungus gnats before, which worked outstandingly. I added the remainder of these predatory mites to my worm bin, because the package said it was safe. Whenever I saw something buzzing around that resembled a fungus gnat, I added some worm compost. Up until now I have never had another outbreak. Also, there were some colonies of very small, seemingly harmless insects in my worm bin before. I noticed a while ago they are completely gone now. I'm unsure if this is due to the predatory mites though.

I have sprayed my Erythroxylum spp. a couple of times with pyrethrum a week or two ago. Even though I gave them a repot recently, the new leaves keep on looking yellowish. So it might definitely be caused by the pyrethrum. Never really noticed the connection before, so I will see how things develop over time. Will the leaves of Erythroxylum spp. turn yellow when they're affected by spider mites?
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DnDRnD
Hobby cultivator


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Quote:
Poison Drink said: I once tried those predatory mites against spider mites, but it didn't work out. There was quite an extensive population of spider mites though, since they were already building webs in the new growth. Although I cut off all the badly affected branches and disposed of it properly, the predatory mites couldn't eradicate the spider mite population. I tried to give them the appropriate living conditions but to no avail. There's a couple of different predatory mites that could be used against spider mites, so maybe another one would have worked better in my situation. I'm interested in reading your experiences, Mateo! I would much prefer using predatory mites over 'chemicals'. Also, it's really unpleasant to chew leaves that have been sprayed with pyrethum in the past.
I have used a different kind of predatory mites against fungus gnats before, which worked outstandingly. I added the remainder of these predatory mites to my worm bin, because the package said it was safe. Whenever I saw something buzzing around that resembled a fungus gnat, I added some worm compost. Up until now I have never had another outbreak. Also, there were some colonies of very small, seemingly harmless insects in my worm bin before. I noticed a while ago they are completely gone now. I'm unsure if this is due to the predatory mites though.

I have sprayed my Erythroxylum spp. a couple of times with pyrethrum a week or two ago. Even though I gave them a repot recently, the new leaves keep on looking yellowish. So it might definitely be caused by the pyrethrum. Never really noticed the connection before, so I will see how things develop over time. Will the leaves of Erythroxylum spp. turn yellow when they're affected by spider mites?
Not sure about this species specifically but i know spider mites can cause yellowing of leaves due to sucking out the juices and nutrients thus depleting the plant of vital necessities and eventually killing the plant
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Solipsis
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Re: Coca growers [Re: DnDRnD]
#26043177 - 06/10/19 05:43 AM (4 years, 7 months ago) |
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This whole 'coca hates wet feet' thing applies mostly to mature plants right? Cause it seems misleading for seedlings which seem fine and want moisture, maybe not unlike cacti?
I have 2 seedlings but I think there should be like zero tolerance for gnats, iirc they are very sensitive to them and I still need to control mine with things like Bti.
What am i looking at there ^ some sort of scale?
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Mateo
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Re: Coca growers [Re: Solipsis]
#26043705 - 06/10/19 11:35 AM (4 years, 7 months ago) |
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My E.coca plant has certainly got lighter green, almost yellow leafs and i think it´s because of the mites. It originally have dark green leaf same as the Truxillence leaf, if not even darker. It could be a combination of mites, too high PH and maybe lack of iron, that also yellows the leaves.
On the site where they offer predatory mites here, they write that if you have a bad spidermite infestation you should spray with soap first to get the numbers down before applying the predatory mites. Maybe they cant eat more spidermites when their belly is full.
The soil of my cocas are not dry all the time but they dont like to have wet soil 24/7. Just let the soil get decently dry before watering again. I think younger plants tolerate more moisture in the soil than older.
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Poison Drink


Registered: 11/15/10
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Re: Coca growers [Re: Mateo]
#26044461 - 06/10/19 06:19 PM (4 years, 7 months ago) |
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I was also thinking the yellowing of the leaves could be due to an iron deficiency, but I have recently repotted the Erythroxylum spp. plants and the new growth of the E. novogranatense plants stays rather yellow for the time being. So either the new (fertilized, acidic) potting soil with added horse and chicken manure is lacking in iron, or the plants aren't yet recovered from the spider mites and subsequent application of pyrethrum.
All of the leaves were equally yellow and most of the leaves didn't show any other signs which I associate with spider mite infestation (misshapen and curled leaves, browning of the edges, smaller than normal leaves, little yellow dots on the leaves, ..) Only the new growth with webs showed these traits. I do notice the new leaves are slowly getting greener, so I will just have to sit it out and hope the spider mites stay away.
I applied the Phytoseiulus Persimilis predatory mites a while ago. Maybe the condition in my growing chamber were not optimal for their survival at the time, since they require specific conditions to survive, i.e. RH of over 60% and temperatures between 18-26°C. If these conditions are not met, the spider mite population might get the overhand again. That's why I applied an excess of predatory mites and cut off the badly affected parts, but to no avail.
I also think predatory mites are rather expensive for regular application. They don't have a long shelf life in the fridge.
Three weeks ago after first application of pyrethrum:

Quote:
Solipsis said: I have 2 seedlings but I think there should be like zero tolerance for gnats, iirc they are very sensitive to them and I still need to control mine with things like Bti.
What am i looking at there ^ some sort of scale?
Last year I lost all but one of my Erythroxylum spp. seedlings due to fungus gnats. I ordered predatory nematodes to combat the fungus gnats larvae, but I was already too late. Other plants were affected too but none died. Eventually the nematodes eradicated the fungus gnats though.
No idea what those little insects were. They lived under the lid of my worm bin, and were seemingly harmless. They disappeared after I added predatory nematodes to my worm bin. Maybe it's just a coincidence though, but they had colonies in my worm bin for over a year.
Edited by Poison Drink (06/10/19 06:24 PM)
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Mateo
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One can use the simple soap-water spray and it´s quite effective but one needs to apply it everywhere, on top of leafs, on the bottom, on the branches, and do it over and over several times. Maybe it would kill your predatory mites though. And it´s quite demanding to do if one have many or large plants. It also don´t seem to kill the spidermites entirely, but it does kill 95% of them. It´s quite a non toxic solution at least. Im going to try this a number of times before applying the predatory mites and hopefully kill the last of the spidermites.
For fungus gnats one can always use weak peroxide solution like 1-3% and water the soil with it. Maybe it´s harsh on seedlings, i will try it on a few and see.
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mrmazdarx9
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Re: Coca growers [Re: Mateo] 1
#26045195 - 06/11/19 03:06 AM (4 years, 7 months ago) |
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Just remember peroxide lowers ph
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heartburn
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Registered: 04/20/19
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H2O2 is very weakly acidic. Not even enough to be worried about in a 3% solution. I would not expect it to matter in most scenarios.
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Mateo
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That might not be a bad thing in my case. As i use regular houseplant soil a bit lower PH should be very beneficial. But i guess the peroxide washes away pretty fast with the ordinary waterings in a week or 2.
I should lower my soil PH for the Erythroxylums in some other way. I could add some weak HCL, citricus acid or vinegar to the water i give them. Choir is lower PH but i dont want to use only choir because if i do i must supply liquid fertilizers and vitamins every watering and maybe measure PH,TDS and conductivity all the time, like a hydroponic or ganja grow. Maybe the lower PH water is the easiest way to go after all. I could make a 25L plastic pail with lower PH water and use this for the Erythroxylums every watering. Then i dont have to work with the water PH at every watering. I have done this before but i ended up using regular tapwater after some time, because i was lazy.
I use liquid fertilizer for flowering houseplants NPK 7/3/6 with trace elements including iron. Someone said long ago in this thread that NPK 7/3/6 was perfect for Erythroxylums.
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mrmazdarx9
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Re: Coca growers [Re: Mateo]
#26047878 - 06/12/19 11:05 AM (4 years, 7 months ago) |
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I have a 10 litre bottle that i put the nutes in fill with water then ph down to ph5ish then thats all i use.
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JayWise

Registered: 11/05/17
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Re: Coca growers *DELETED* [Re: mrmazdarx9]
#26047923 - 06/12/19 11:36 AM (4 years, 7 months ago) |
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Post deleted by JayWise
Reason for deletion: .
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Mateo
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Re: Coca growers [Re: JayWise]
#26048032 - 06/12/19 12:27 PM (4 years, 7 months ago) |
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Good to see you here too JW. I must say im a bit jealous of your 5 E.cocas, i have only one E.coca that are under spidermite attack. I would like to have a few more but im going to try tissue culture/micropropagate some leaf pieces and see if it´s possible to get new plants that way. I just received some auxins and cytokinins i need so i can start it soon. It will be a interesting experiment. Going to try Iboga and Salvia D also. Unfortunately i don´t have a HEPA flowhood but a isopropanol sprayed still air box will have to do for now. It was good enough for growing mushrooms so i think it will work.
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mrmazdarx9
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Re: Coca growers [Re: Mateo]
#26048346 - 06/12/19 02:53 PM (4 years, 7 months ago) |
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Keep us updated ive always wanted to give that a go.
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JayWise

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Re: Coca growers *DELETED* [Re: Mateo]
#26048370 - 06/12/19 03:01 PM (4 years, 7 months ago) |
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Post deleted by JayWise
Reason for deletion: .
Edited by JayWise (06/12/19 03:02 PM)
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Mateo
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Re: Coca growers [Re: JayWise]
#26048386 - 06/12/19 03:08 PM (4 years, 7 months ago) |
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It should work, they have done it on Erythroxylums many times. But i don´t know if it´s doable for a plant hobbyist at home without flowhood and using a kitchen pressure cooker for sterilization. I will find out soon.
I hope you succeed dealing with the mites JW.
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TiN 42
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Re: Coca growers [Re: Mateo]
#26052836 - 06/14/19 06:22 PM (4 years, 7 months ago) |
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So here how my novo is looking this summer, it's 4 years old. It has a rough time every winter when I bring it in, but comes back good in the spring once it's outside again.
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mrmazdarx9
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Re: Coca growers [Re: TiN 42]
#26052986 - 06/14/19 08:01 PM (4 years, 7 months ago) |
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Looking very nice
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Mateo
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Registered: 06/24/11
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I agree, looking good. What soil you use for your Novos tinkid?
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TiN 42
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Re: Coca growers [Re: Mateo]
#26053996 - 06/15/19 12:23 PM (4 years, 7 months ago) |
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Just plain old potting soil I think. Sorry I don't do anything special just let it grow.
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Lipa Kreepa
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Re: Coca growers [Re: TiN 42]
#26054054 - 06/15/19 01:19 PM (4 years, 7 months ago) |
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Looks so healthy and happy. excellent plant tinkid
-------------------- LOVE LIFE AND LIVE IT HARD! 'Great Spirit, today, let me touch the Earth so the Earth can touch me.' "I urge you to please notice when you are happy, and exclaim or murmur or think at some point, 'If this isn't nice, I don't know what is.'" -- Vonnegut A monkey w/out his jungle is just an inmate-- lipa
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