nematodes

From: "Derek Burch" derek at horticulturist.com> on 2002.02.25 at 00:41:25(8215) Ron, unless this is a very strange member of the genus, these nematodes are not interested in plant tissue. There is a close relative under test in Europe against slugs and snails, and again, this one is no threat to plants. If the ants that are bothering you are the little fire ant - Wasmannia (the one that is very tiny but easily seen in quantity as little moving russet patches between stored pots or under tree bark [or almost anywhere else in my garden where they drop off trees onto me while I work]) - the nematode probably won't help much since they are probably a passive soil inhabiting type that latches onto a passing prey but does not go hunting them down. If you have the imported or the native fire ant, these might help, although I don't remember hearing about them for this purpose. Fire ants, by the way will slaughter your plants if the mood takes them. I'm not sure how they are with monocots, but they strip the bark and conducting tissue right off dicots when they once start in on them. If you use the nematode, please keep us (me) posted. Derek

From: "Derek Burch" derek at horticulturist.com> on 2002.02.25 at 00:58:27(8216) I don't know whether I picked up the reference from this group or from somewhere else, but the following publication is a nice introduction to biocontrol (and makes it clear that Heterorhabditis has not been found successful against ants) http://www.nysaes.cornell.edu/ent/biocontrol/ Try University of Florida sites for some stuff on fireant control - they have a great creature from South America under test that eventually takes the head right off the ants. It couldn't happen to a nicer pest. Derek +More Fort Lauderdale Zone 10b ?11

From: mburack at mindspring.com> on 2002.02.25 at 16:42:12(8218) Derek is right.... I recently "released" 20 million predator nematodes into my plant pots and on my property... It didnt do jack! +More aroid-l@mobot.org wrote: > I don't know whether I picked up the reference from this group or from somewhere else, but the following publication is a nice introduction to biocontrol (and makes it clear that Heterorhabditis has not been found successful against ants) href="http://www.nysaes.cornell.edu/ent/biocontrol/">http://www.nysaes.cornell.edu/ent/biocontrol/ Try University of Florida sites for some stuff on fireant control - they have a great creature from South America under test that eventually takes the head right off the ants. It couldn't happen to a nicer pest.? Derek Fort Lauderdale Zone 10b ?11

From: Iza & Carol Goroff goroff at idcnet.com> on 2002.02.25 at 21:21:08(8222) I would not expect an immediate effect from a biological control. "Recently"? Perhaps the nematodes died while you were counting them :<)) Iza Goroff +More Whitewater Wisconsin mburack@mindspring.com wrote: > Derek is right.... > > I recently "released" 20 million predator nematodes into my plant pots and on my property... > > It didnt do jack!

From: "Ronald h Kessler" ronlene at worldnet.att.net> on 2002.02.25 at 23:01:10(8226) Thanks Derek, I will be trying the nematodes on some of my potted Bonsai trees, where the bottoms of the pots are ant haven. I don't know if I should experiment on the Amorphs.I'll keep you posted if I see results. Ron +More ----- Original Message ----- To: "Multiple recipients of list AROID-L" Sent: Sunday, February 24, 2002 7:48 PM Subject: Re: nematodes > Ron, unless this is a very strange member of the genus, these nematodes are > not interested in plant tissue. There is a close relative under test in > Europe against slugs and snails, and again, this one is no threat to plants. > > If the ants that are bothering you are the little fire ant - Wasmannia (the > one that is very tiny but easily seen in quantity as little moving russet > patches between stored pots or under tree bark [or almost anywhere else in > my garden where they drop off trees onto me while I work]) - the nematode > probably won't help much since they are probably a passive soil inhabiting > type that latches onto a passing prey but does not go hunting them down. > > If you have the imported or the native fire ant, these might help, although > I don't remember hearing about them for this purpose. Fire ants, by the way > will slaughter your plants if the mood takes them. I'm not sure how they are > with monocots, but they strip the bark and conducting tissue right off > dicots when they once start in on them. If you use the nematode, please > keep us (me) posted. Derek > >

From: "?goston J?nos" agoston.janos at citromail.hu> on 2006.05.13 at 06:29:31(14178) Dear All, There were some mails about nematodes in Amorphophallus. Today I received Amorphophallus yunnanensis and A. asterostigmatus from Thailand (and some gingers...) There were some holes on the tuber, but they are dried off now. They could be nematodes as well, but I think when we grow Amos in pots there are small risk to have a nematode infection. Our garden soil is allready infected by nematodes, but it is not serious. As I was mailing with a Dutch Zantedeschia breeder he told me that the biggest problem is with Erwinia carotovora subsp. carotovora. This is an anaerob bacteria which eats pectine (this material sticks the plant cells to eachother) and becouse the wet and anaerob enviroment the tubers start to rot with a distgusting smell (it is worse than the Dracunculus's). As I know the nematodes and the Erwinias symthomes are very similar, so I would like to point out that it can be an Erwinia rot as well as nematodes. To be sure is it nematodes or Erwinia is to get some rasped tissue from the meeting point of healthy and rotten parts and see if there is any nematodes. As I'm not a Plant Protection Consulting Engineer (yet) any professional help or advice is very wellcome on this subject! +More Best Wishes, Jani _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

Note: this is a very old post, so no reply function is available.