We’re coming up on a time of the year when fleas start to become more active. Here are a few quick tips to stay ahead of fleas (and ticks) effectively without harmful chemicals: Protect your yard Nematodes: When soil temperatures rise above 45 degrees for at least 2 to 3 weeks (spring, summer and fall in most areas), apply nematodes to your yard to minimize flea populations. Nematodes (microscopic worms) eat flea larvae and do not hurt beneficial insects. They can be found at many plant nurseries. (Portland Peeps: they