Alright.  I know that the title of this post is controversial for this website, but I’m serious about this. Read a little further and this might not seem so radical.

Over the last 40 years I have gardened in Denver, Davis California, Western Colorado, Delaware and in San Diego county.  By far the most challenging place to garden has been in San Diego.  We have no winter here to knock back the pest populations.  We have lots of misty, cloudy days in May and June because we are only 2 miles from the ocean. It is pretty much of a pest and disease heaven.  I am constantly fighting pest issues in my garden and vineyard here, and I often wish I had better tools to do that.

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You’ve worked hard getting that garden planted and tending it with care, but inevitably nature takes its course and the bugs find those veggies. Is it any surprise they’d want to eat the delicious fruits of your labors? You can’t blame them, after all. But you can prevent pest damage and control problems.

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There is a growing movement to assess the value–in dollar terms–of “ecosystem services” such as storm protection (from salt marshes), pollination of crops (from bee colonies and insects), natural predation of harmful insects and parasites (by birds, bats and other animals), fertilizer from animal feces, fish in the oceans, clean water and air, and cooling/greenhouse gas-controlling forests, etc.

This movement has been gaining steam–especially with the recent loss of 40% of U.S. bee colonies by a mysterious virus (causing billions of dollars in lost crops), and the devastation wrought by hurricane Katrina (largely due to the human destruction of natural buffers like salt marshes and sand bars).

Earlier this year, in the journal Frontiers in Ecology and the Environment, Peter Kareiva et al, published a call for renewed efforts to put a dollar figure on the value of nature’s services. Putting a price on such services (defined as any function of the natural world that we benefit from) is extremely tricky and difficult, but not putting any price at all on these services, in the view of the authors, seems a serious mistake.

Kareiva, chief scientist at The Nature Conservancy, elaborated on this idea: “In this world, cost benefit analysis and dollars are how decisions get made…When nature and the benefits that nature [provides] are not converted to dollars then it can’t be on the table for those discussions and, in a way, nature’s not getting credit for what it’s doing.” (quoted from a February, 5, 2009 podcast report by David Biello for Scientific American)

The time has come to credit Nature for what it does for us. Not to do so, the authors argue, is to devalue Nature, and thus to encourage our collective ignorance and misuse/abuse of its services.

photo credit: Jon Sullivan, public domain

But even more insidious than the harm posed by toxins used to rid our homes and workplaces of unwanted critters is the problem of chemical pesticides used to control outdoor pests. In fact, the use of chemicals to kill animals and plants in our yards is a lot more widespread than you may have guessed. Consider these statistics cited by the Safer Pest Control Project:

• 78 million households in the U.S. use home and garden pesticides.
• $700 million are spent annually on pesticides for U.S. lawns.
• 67 million pounds of synthetic pesticides are used on U.S. lawns each year.
• Three times as much pesticide is used on lawn per acre than on agricultural crops.

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