To: All Re: Re: Chinese ant chalk ---------------------------------------------------------------------- @MSGID: 1:3641/223 0006b37c @PID GIGO+ sn 175 at psybbs vsn 0.99 pl1 From: aquilla@salus.med.uvm.edu (Tracy Aquilla) @Subject: Re: Chinese ant chalk @Message-Id: @Sender: news@emba.uvm.edu Date: Wed, 7 Dec 1994 16:13:33 GMT In Article , wgoodman@acenet.auburn.edu (William Robert Goodman) wrote: >In <82a_9412011111@psybbs.durham.nc.us> Jim.Warren@125-33.psybbs.durham.nc.us (Jim Warren) writes: > >>I have tried various chemicals and spices as deterrents all to no avail. >>Imported "ant chalk" from china is the only thing that I have tried that seems >>to work and with which I feel safe. I get it in a little "ethnic" market. >>I don't know what is in it as it has only a few words of English on the package >>declaring it "safe for human and animal" and the chinese clerks seem unable to >>translate beyond "insect powder". I looks just like ordinary white chalk, >>however. For all I know, that is what it is! But when I chalk a line of this >>stuff around an area to be protected It does seem to scare the ants away. > > >its probably DDT or Chlordane in a chalk carrier (;-> > >actually probably not. probably some organic repellant, since it doesn't >kill them, just chases them off. But it does bring up an interesting >question....Shouldn't EPA have a label on this stuff if it is sold in the >US? It's obviously an agricultural chemical of some sort..... > >anybody know? > > >bob > > I've never heard of this stuff. It probably should be regulated under FIFRA, since it is apparently inended to be used as an insect control, but I don't see any potential agricultural applications for this product; it appears to be intended for home use. Besides boric acid, it could also be made of silica gel. A curiosity indeed. Tracy --- * Origin: [via Psychotronic BBS = Durham, NC = 919-286-4542]EMBA Co (1:3641/1) @PATH: 3641/1 ---------------------------------------------------------------------- (217) Wed 7 Dec 94 18:22 By: Larry London To: All Re: Tropics: Cassava and Waste Composting (fwd) ---------------------------------------------------------------------- @MSGID: 1:3641/223 0006b3a1 @PID GIGO+ sn 175 at psybbs vsn 0.99 pl1 From: london@sunsite.unc.edu (Larry London) @Subject: Tropics: Cassava and Waste Composting (fwd) Date: 7 Dec 1994 18:22:34 -0000 @Sender: daemon@bigblue.oit.unc.edu @Message-Id: <9412071748.AA19574@sunsite.oit.unc.edu> ------- start of forwarded message ------- >From: sawelch@utkvx.utk.edu Newsgroups: alt.sustainable.agriculture Subject: Tropics: Cassava and Waste Composting Date: Tue, 6 Dec 94 05:30:09 GMT Organization: University of Tennessee Keywords: cassava,compost,soil temp Greetings SA Subscribers I am currently working on an assignment that involves a proposed tropical sustainable system for cassava. I am finding a lack of background information on this crop and would like to hear from any and all that have insight on the following three questions. 1. Is there published research on the effect of lowered soil temperature on partitioning, that is, increased yield such as we see with potato? 2. Has anyone heard of improved cassava cultivars that respond positively to nutrient rich soil without going completely vegetative. 3. Are there any safe systems for the composting of human waste for use as cropping mulch? If so, how long does it take at a location with 85c daily averages year round? I appreciate your leads and ideas. Please post responses or send them directly to SAWELCH@utkvx.utk.edu Thank you, Steve Welch, Knoxville TN ------- end of forwarded message ------- --- * Origin: [via Psychotronic BBS = Durham, NC = 919-286-4542]SunSITE (1:3641/1) @PATH: 3641/1 ---------------------------------------------------------------------- (218) Wed 7 Dec 94 16:40 By: Tracy Aquilla To: All Re: Re: tomatoes and disease ---------------------------------------------------------------------- @MSGID: 1:3641/223 0006b3a6 @PID GIGO+ sn 175 at psybbs vsn 0.99 pl1 From: aquilla@salus.med.uvm.edu (Tracy Aquilla) @Subject: Re: tomatoes and disease @Message-Id: @Sender: news@emba.uvm.edu Date: Wed, 7 Dec 1994 16:40:45 GMT In Article <1994Dec6.191945.7791@news.cs.indiana.edu>, "Kirk Job Sluder" wrote: >In article <3bu4t5$40p@martha.utk.edu>, wrote: >>Hello. I need some help with an assignment in my Crop Physiology and Ecology...(deleted)... > >Ok, I can only post as an undergraduate who has spent the past semester >working on a plant pathology project. If you want REAL detail you probably >should talk to professors in the Plant Pathology department on your own >campus. > >Hypersensitive response appears to be a very basic way of how plants >deal with pathogens. However the mechanisms behind hypersensitive response >and resistance are still not clear. (Resistance genes are difficult to isolate >and clone for various reasons.) Basically the cells surrounding the infection >die. As part of this, phytoalexins are produced. There are more questions >than answers as to how this happens. > >What is known is that resistance works on a gene for gene basis. In other >words, each virulence gene in a pathogen is counteracted by a single >resistance gene in the host. This is different from animal resistance >in which resistance is produced by recombination of a suite of genes with >a common functional base. > I think the gene for gene theory has been disproved (re. plant pathogens), and this information is considered outdated, but I don't have any references handy. Tracy --- * Origin: [via Psychotronic BBS = Durham, NC = 919-286-4542]EMBA Co (1:3641/1) @PATH: 3641/1 ---------------------------------------------------------------------- (219) Wed 7 Dec 94 5:02 By: wtrentha To: All Re: NATIVE PLANTS ---------------------------------------------------------------------- @MSGID: 1:3641/223 0006b3b2 @PID GIGO+ sn 175 at psybbs vsn 0.99 pl1 From: wtrentha@utkvx.utk.edu @Subject: NATIVE PLANTS Date: Wed, 7 Dec 94 05:02:01 GMT @Message-Id: <3c4f90$1qn@martha.utk.edu> DO YOU KNOW OF ANY RESEARCH CONCERNING NATIVE OR TRADITIONAL N. AMERICAN PLANTS AND THIER POTENTIAL IN A CROPING SETTING? BOB TRENTHAM WTRENTHA@UTKVX.UTK.EDU