In our local paper this week there was an article about West Nile Virus and mosquitoes. "A sample of mosquitoes collected last week tested positive for the virus, bringing the number of positive batches for the Halton Region this year to nine." Two local people, so far, have tested positive for WNV.
It is high risk time for WNV illnesses. Mosquitoes can transmit WNV to humans after becoming infected by feeding on the blood of birds carrying the virus.
Our region has promoted water conservation and the use of rain barrels for several years now. The challenge with collecting rain water, is to keep those pesky mosquitoes from breeding in the rain barrels. You can buy insecticide/larvicide to kill any mosquitoes from breeding in the free standing water in the barrels, however, I use the rain barrel water on my vegetable garden and don't want the chemicals on/in my food. I have screens on my barrels, but those mosquitoes still make their way into the barrels. It hasn't been a major issue with "standing" water this summer with the lack of rain, however the last week we've had our share of rain and looks like rain is in the forecast for the next week. My rain barrels are full again.
So, the next best thing .... goldfish ! I bought a bag of fish from a local pet food store for 25 cents each. The sales person at the store asked me if I was using them to feed other fish. I said no - wanted to put them in the rain barrels to eat all the mosquito larvae. Her response - wow - lucky fish ! I hope it works.