I am ordering these again this year. They are tiny insects that you get as larvae. They get sprinkled around manure and anywhere flies tend to breed. Once they hatch they eat fly eggs, keeping the evil fly population down from the start. It only takes a few minutes once a month.

It's important to get these on time, but last year was colder than normal and we almost got our first batch too soon. I noticed far fewer flies than the previous year and we didn't spray the manure pile with nasty insecticide. We still hung a trap to cath any adult flies.

These would work great on a property that doesn't have a cow farm across the road. We still get flies from that. But the amount is considerably less, and you can order extra for bad months.

Pros: effective, environmentally and pet safe, easy to use

Cons: none

I tried Fly Predators a few years back and I think they did help. I had 5 or 6 horses at the time, and the neighbors had 3 or 4 that run very close to our property on one side, so I had to buy a fairly large pack of them. Todd thought I was crazy but I really do think that between them and the randomly place fly traps there were fewer flies. Another neighbor that lives across the road mentioned that there were less flies that year- he has no animals so I'm sure he notices the irritating flies that seem so attracted by all the horse and cows around here.

Pros: safe and friendly way to get rid of pests

Cons: expensive

I have used these since 2002 and love them. We don't have neighbors right next to use with horses so I don't have to worry about any horses but mine. We live in Florida so the fly season is long and can get out of control. People are amazed when they come to the barn because you hardly see any flys at all. Love them!!!

Pros: All natural, easy to use, effective

Cons: can't stop flys from neighbors

We've used fly predators for 3 years now and noted a big drop in biting flies. It does nothing for the normal house flies though.

We're sensitive to the environment and don't like using sprays that kill all inspects so this has been a great product for us.

Pros: non toxic, targets specific pets

Cons: expensive

I used to use fly predators and they work well. Don't know why I stopped, but I now use Solitude. It is a pellet and it goes in their food everyday starting before fly season. My vet always comments that we hardly have flys.

Pros: Easy to use and effective

Cons: none