🚀 go-pugleaf

In article <3267A686.32D2@ucsd.edu>, gfox@ucsd.edu says...
>
>Roger Whitehead wrote:
>> 
>> Have you tried a pyrethrum-based insecticide?
>> 
>
>Yes, that caused a LOT of plants -- I seem to recall that it was 
>especially bad among Apocynaceae -- to defoliate.
>
>I've received several email responses to my post, all of which amounted 
>to (a) suggesting use of soap sprays, or (b) saying, in effect, "when you 
>find out the answer, let me know too!"
>
>Cheers,
>Gordon

Well the obvious solution would be to use a good natural enemie. Encarsia 
formasa, a minute parasitic wasp is extensively used for biocontrol of 
whiteflies (Trialeurodes vaporariorum and Bemisia tabaci) as a larval 
parasitoid. Try to find a source nearby. Should work. At least the change of 
phytotoxicity is 0%.-- 


Maarten
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||\\  //||  Dr. Maarten van Helden
|| \\// ||  Dept. of Entomology
||  \/  ||  Wageningen Agricultural University
||||||||||  Binnenhaven 7, 6709 PD
||      ||  Wageningen, the Netherlands
||      ||  Tel +31-317-485118 Fax +31-317-484821
||      ||  Email: <maarten.vanhelden@medew.ento.wau.nl>
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