We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button

« previous next »
Pages: 1 [2] 3   Go Down

Author Topic: Help needed with Scadoxus (multiflorus)  (Read 3716 times)

Ezeiza

  • Hero Member
  • *****
  • Posts: 1061
Re: Help needed with Scadoxus (multiflorus)
« Reply #15 on: May 16, 2011, 05:46:46 PM »
For these hot climate plants, the best is to water well then let dry well, then water well, etc.

If in pots, holes must be on the pots sides as Heinie has shown for several South African bulbs he grows.
Logged
Alberto Castillo, in south America, near buenos Aires, Argentina.

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #16 on: May 16, 2011, 06:38:13 PM »
Quote from: Arykana on May 14, 2011, 08:03:59 PM






I need help for this matter
What can this be, fungus or virus? Will survive the bulbs?

Hi Erika ,

I have just found your topic with this problem ....

I know this problem well – I had a lot of problems with some Amaryllidace ....I have lost near all my Griffinia + Eithea ...and also my Scadoxus + wintergrowing Hippeastrum had this problem – now it is really solved and my Pamianthe has now again healthy leaves –I’m really happy !!!
 
I did never exactly know what is the problem – either mites or Stagonospora ...both looks similar !
 
Before some weeks a wrote to a person – he work for agriculture . He has agreed to help me and I send him some ill leaves – his answer was clear : thats are mites
 
The only absolutly way to kill them is to lay the bulbs in hot water ( 2 hours with 43,5° ) ...but that is impossibly for me ( with my conditions )
 
So he suggest me to use :
Spraying with Vertimec ( the active is Abamectin ) ,it is also possibly to use Axoris ( also Abamectin ) or Lizetan ( Methiocarb )
It is really importent to use only this actives !!! there exist also some other insecticides ...but they have other actives – and so they will not help .
 
The second really importent step is to use also so called Penetrationsmediums
( I dont know the word in your laguage ) – this medium helps that the insecticid goes in all scales of the bulb – this man has suggest me „Silvet Gold“ or „Break tru“ . A dash liquid for washing kitchenware is similar ...but it is not so helpful.
 
I have asked in my shop where I always buy my material for plants but they could not helping me ....it is not allowed to give this things to private persons .....but with the help of a good friend I have received a small portion of Vertimec + BreakTru ....
 
The third really importent information was that I should spray this mix 3 times .....all 3-4 days ( thats the reason that my earlier treatment has never help ) – this kind of mites have a very short cyclus for regeneration ....so it is importent not to wait 6- 7 day ( as is normal for Akarcides )

After this treatment my plants grows again well !

Good luck
Hans
 

Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #17 on: May 16, 2011, 06:42:48 PM »
Quote from: Ezeiza on May 15, 2011, 11:43:49 PM
Do you know it is a tropical/subtropical bulb? It likes hot growing conditions during a long season.

Is it possible that it received a sudden cold spell?

The lesions resemble a lot the presence of nematodes.

Alberto C. :

this are not nematodes ....
We call it in german "Roter Brenner" ....many Hippeastrum have this problem -after sending some leaves to this specialist is it clear - thats mites .
 
Hans
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

PeterT

  • Hero Member
  • *****
  • Posts: 1369
  • Country: gb
Re: Help needed with Scadoxus (multiflorus)
« Reply #18 on: May 16, 2011, 06:47:38 PM »
What about neem oil, or alcohol used for mites on plieonies?
Logged
living near Stranraer, Scotland. Gardening in the West of Scotland.

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #19 on: May 16, 2011, 06:53:51 PM »
Peter T

this specialist wrote me also it is possibly to use Amblyseius mites ( as biological treatment )

whats are "plieonies" ???

I have tried neem oil agaist this beasties ....without any succsess !
I would not use Alkohol on my Scadoxus ...the risk it for me to high ....I use it only on my Nerium oleander !

Hans
« Last Edit: May 16, 2011, 06:58:19 PM by Hans J »
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

Maggi Young

  • Forum Dogsbody
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 44784
  • Country: scotland
  • "There's often a clue"
    • International Rock Gardener e-magazine
Re: Help needed with Scadoxus (multiflorus)
« Reply #20 on: May 16, 2011, 07:02:24 PM »
I think Peter has made a typing mistake, Hans... he means Pleiones
Logged
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

Editor: International Rock Gardener e-magazine

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #21 on: May 16, 2011, 07:04:39 PM »
Here is a information about this "Penetrations medium " ...sorry only in german :

http://www.dlr-rheinpfalz.rlp.de/internet/global/themen.nsf/a20ccd4f38ac9025c1256ea6004f63d3/99657c23ec8cedefc12570d7004b4b0e/$FILE/08_Augustin_Additive.pdf
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

PeterT

  • Hero Member
  • *****
  • Posts: 1369
  • Country: gb
Re: Help needed with Scadoxus (multiflorus)
« Reply #22 on: May 16, 2011, 07:06:01 PM »
Quote from: Maggi Young on May 16, 2011, 07:02:24 PM
I think Peter has made a typing mistake, Hans... he means Pleiones
Thanks Maggie
Logged
living near Stranraer, Scotland. Gardening in the West of Scotland.

Maggi Young

  • Forum Dogsbody
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 44784
  • Country: scotland
  • "There's often a clue"
    • International Rock Gardener e-magazine
Re: Help needed with Scadoxus (multiflorus)
« Reply #23 on: May 16, 2011, 07:08:44 PM »
You asked the very question I was about to, Peter, so I was on the wavelength!

Logged
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

Editor: International Rock Gardener e-magazine

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #24 on: May 16, 2011, 07:10:19 PM »
Maggi and Peter :

this problem with "Weichhautmilben" is only on Amaryllidaceae ....not on Pleiones !
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

Maggi Young

  • Forum Dogsbody
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 44784
  • Country: scotland
  • "There's often a clue"
    • International Rock Gardener e-magazine
Re: Help needed with Scadoxus (multiflorus)
« Reply #25 on: May 16, 2011, 07:27:38 PM »
Hans, look at this ,please.... perhaps there is a connection with orchids...
http://www.orchideenforum.de/weichhaut.htm
Logged
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

Editor: International Rock Gardener e-magazine

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #26 on: May 16, 2011, 07:36:05 PM »
Maggi ,

I believe there exist a lot of this animals ....but I'm not a specialist for Tarsonemidae !
Maybe there are also mites who attacs orchids ...

The importent thing  is that we know thats mites and how we can figth it  ;D
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

Maggi Young

  • Forum Dogsbody
  • Global Moderator
  • Hero Member
  • *****
  • Posts: 44784
  • Country: scotland
  • "There's often a clue"
    • International Rock Gardener e-magazine
Re: Help needed with Scadoxus (multiflorus)
« Reply #27 on: May 16, 2011, 07:37:12 PM »
Yes, too many mites, everywhere, for sure!!  :-X
Logged
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!

Editor: International Rock Gardener e-magazine

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4167
  • Country: de
Re: Help needed with Scadoxus (multiflorus)
« Reply #28 on: May 16, 2011, 07:41:36 PM »
this specialist - his name is Dr. Thomas Brand ( I'm really grateful for his diagnosis ) has written a very nice book :

"Pflanzenschutz bei Kakteen und anderen Sukkulenten"

published from the "Deutsche Kakteen Gesellschaft"

with a lot of good pictures and descriptions !

Hans

http://www.dkg.eu/cms/cs/index.pl?navid=Pflanzenschutz_1166&sid=de
« Last Edit: May 16, 2011, 07:43:17 PM by Hans J »
Logged
"The bigger the roof damage, the better the view"(Alexandra Potter)

Arykana

  • cake maker supreme
  • Hero Member
  • *****
  • Posts: 649
  • Country: hu
  • International flower plunderer person
    • Fairy Garden
Re: Help needed with Scadoxus (multiflorus)
« Reply #29 on: May 17, 2011, 07:09:21 PM »
Thank you all the comments. My husband already had spay it.
Logged
Pages: 1 [2] 3   Go Up
« previous next »
 

Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942
SimplePortal 2.3.5 © 2008-2012, SimplePortal