North American Fruit Explorers mailing list at ibiblio

[Joe and Ellen Hecksel <jhecksel@voyager.net>]

Victor Patterson wrote:

> Joe:
>     I would also like an effective nontoxic control of curculio, at what
> stage in the life cycle is S. riobravis used? 


No information available.  Sorry.  Other sites list nematodes as most 
effective against larval stages as they are repelled by compounds in 
beetle feces.  Nematodes can still enter adults via the breathing ports 
(spiracles) but must somehow pole vault up to them.

Reading between the lines, I suspect curculio most vulnerable when 
larvae leave fruit and drop to ground to pupate(sp?).  One problem with 
S. riobravis is that it likes it *very* warm.  The smart money would 
probably use a mix of several types of nematodes.  You are still out of 
luck regarding adult curculio that migrate in from wild trees or 
neighboring lots.

>Is your information from
> published studies or ongoing research? 


Ooops.  My "research" is reviewing internet content.  "Research" is 
really too grand of a word.  As an aside, this is a detour I took while 
helping my sixth grader search for a science fair project. 
Bioluminescence in target pests due to Heterorhabditidae bacteriophora 
is the leading contender for the project.


Unfortunately, the site listed in the original post 
http://www.agrobiologicals.com/scope.html
does not use straight HTML so you cannot drill through the site by 
listing a simple address.

-Click Pest Control - Other
-Target Pest
-Scroll down to Curculionidae
-Curculio spp. listed under subcatagories/S. riobravis listed under 
Target Pest section


The site simply lists Curculio ssp

Good luck!


>Where could I get a copy of the
> research?
> 
> Thanks
> 
> Victor
> 


-- 
-Joe Hecksel
My personal website: http://my.voyager.net/~jhecksel
February's featured website: 
http://www.geocities.com/Heartland/Estates/8176/index.html



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