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market-farming - Re: hornworms and cleaning pots

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  • From: Marcie Rosenzweig <fullcircle AT jps.net>
  • To: "Market Farming" <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: hornworms and cleaning pots
  • Date: Fri, 7 Dec 2001 05:17:39 -0800


Hi All,

Like most moths, Sphinx are attracted by light. You may find you have less problem with tomato beds positioned furthest from your night lighting. Also, I found an excess of nitrogen in the plants ( compared to a balance with potassium and phosphorus and calcium) is more attractive to all pests. You might want do do some soil testing and consider especially a foliar calcium to improve the cell wall structure and balance the nitrogen. This helps prevent blossom end rot also.

I knocked the old soil out of my pots and used soap and water plus sunlight as a sterilant. Never had a problem. I suspect some of the ultraviolet and ozone technology being used for pre-cut veggies would also work, but it's pricey. Food-grade peroxide should also work. All are strong oxidizers.

BTW, I've been invited to speak at the Southern SAWG conference January 25-27, hope to see some of you there.

Marcie



Marcie A. Rosenzweig
Full Circle
3377 Early Times Ln
Auburn, CA 95603-7900
(530) 885-9201




  • Re: hornworms and cleaning pots, Marcie Rosenzweig, 12/07/2001

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