The Organic CSA Vegetable Field

The Organic CSA Vegetable Field
A picture of Plant City's (eastern Hillsborough County) first organic CSA farm

Friday, February 4, 2011

Pest Control Operations

I have always thought that the most important thing a farmer can put on his crops is his/her shadow. In other words being observant to what is going on in the field is extremely important when you are limited to a handful of organic pesticides. In an operation like ours there is no easy way out in dealing with pests. We can't just mindlessly and indiscriminately spray our fields with insecticides. Being observant is crucial to understanding what and when things are going on with pests and their predators. I've noticed during the fall and into the spring small flocks of little migratory birds fly across the fields generally moving east or west and stop to pick insects off the plants. I have watched them pick off aphids from the leaves and then hop to the next plant to do the same. It seems that we are in a major flight path for these little predators. I've also noticed that they tend to fly to a spot that is higher than the surroundings in relative terms.In this picture of my freakishly large red bok choi that I am waiting to save seeds from there is one leaf that is taller than the surroundings and it attracts many bird stops. You can see it sticking up on the top picture. Apparently to the birds it is a great lay over spot. The next picture supports my observations. With having a small farm we have the benefit of being able to increase the biodiversity of the farmed land to enhance the productivity. I had the idea that maybe I could get the flight path changed somewhat. I thought that I might place little roosting posts around crops that typically attract pests to see if I can slightly deviate the flight path to our benefit and the benefit of the birds.

I will place the roosts this weekend and observe what happens. The picture above is the bird in action in the bok choi/leek row. I believe that it is a palm warbler. Earlier in the year we planted mulberry trees along the edge of the vegetable plots to offer cover to birds that might hang out in the fields a little longer. It seems that if there is no structure they tend not to linger in the open. I am also hoping to build some fertility to the ground with planting deciduous tree crops and gain a little shade for plants that stress out in the summer heat such as lettuce. We will also be able to harvest the berries when they are ripe. Hopefully it will be a win, win, win, win solution.

1 comment:

gavsteed said...

Hey Shawn, I was just watchign this documentary:
http://www.documentarywire.com/future-of-food/

and I thought of your organic farm. Interesting that pest control was the first post I saw as that movie focuses on Monsanto and their 'Roundup-ready' crops and the government subsidies etc.
It's good to see someone doing it differently, from what I gather most farmers would prefer to be doing it your way but its much easier to take subsidies and use Monsanto seed than try to take them on.
Pity really, hope you're all well.
Gavin

p.s. don't be working the old man too hard!