Another way to scare pests is to use pinwheels as scarecrows. The pinwheels I made are much prettier than some fake bird. I got a pattern (shown at left), some colored straws, some corsage pins, and some gels that are used for stage lighting. They are easy to assemble. I mounted the straws on bamboo kebab skewers and stuck them in the ground throughout my garden.
I got the idea when we were planning an activity around Earth Day a few years ago. I thought it would be great to talk about capturing wind energy. It was perfect since the day we did the activity was really windy. A year or so later, we were talking about color and light so I went to a DJ store and bought a bunch of light gels in all different colors. These made pretty durable pinwheels. The thing that actually degraded first was the straw, in particular the red one. Maybe it was in the most direct sunlight.
What are your ideas for organic gardening? How do you deter pests?