Re: Thrips in Arizona

In a message dated 3/13/00 11:02:15 PM Central Standard Time, Rachel  writes:

> However, I'm hoping and praying that someone here, on the list, may
>  have a more organic method.

Have you tried insecticidal soap?  Two brands, Safer and Concern, are widely 
available at garden centers.  You will need to spray at least once a week 
until things are under control. Thrips have several generations a year, 
maturing in about two weeks, so you will need to be diligent.  Insecticidal 
soap usually works very well, but it is most effective when the insects are 
caught in the early stages.

Malathion and diazinon are really nasty.  You are right to not want to use 
them.  Neem and Pyrethrum are botanical pesticides that are safer for the 
environment (and you), if you feel you need something stronger than 
insecticidal soap.  

Thrips have many predators and hopefully some of them will be along soon to 
help you.  You might try purchasing some green lacewings or ladybugs.  There 
are beneficial nematodes available that kill thrips in the soil.  

Be sure to destroy infected buds and flowers now and because thrips 
overwinter in the soil, you will want to do a good fall cleanup that includes 
cultivating and should probably cultivate again next year.  

Good luck, and please let us know how things go.  --Janis

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