Sorry to trouble you with such a strange one. But my partner had a crazy phobia of frogs, screams shouts flaps cries. The works. I'm near an ancient pond, guessing frogs have been passing this way for many years, on way to and from pond. She thinks they live in our garden, sheds, garages and are planning to take over the house. Do you have any product that may deter them?
Thinking deter rather than kill them but kill would do.
Ultra sonics? If not, any idea of frequencies I would be looking at to build one?
There are no ultra sound devices produced to repel frogs because no one has identified a sound range that irritates them enough to force them to up and move. However, they are highly motivated by food. If there is frog food around they will no doubt forage in the area. So naturally if you take away their food you can in effect force them to relocate.
To accomplish this, you have three methods. The traditional approach is to use a MIST BLOWER and lightly fog some PERMETHRIN over the vegetation where they like to hang out. This treatment will kill off insects frogs like to eat and force them to live elsewhere.
If you prefer to use something organic, go with the MULTI PURPOSE INSECT KILLER. It can be used the same way and will indirectly yield the same results. But since it's organic, you'll no doubt need to use it more frequently.
Lastly, you can opt to use an insect repellent like NBS. It won't kill a thing but it does repel most any insect and not surprisingly, it tends to repel frogs, newts, lizards and other small creatures in the reptile/amphibian family.
Any of these options will reduce and in some cases eliminate the local frog population. The key is using enough and using it frequently. The exact schedule from property to property will vary but in general, one can expect at least 1 week of protection if not 3-4 depending on the local environment, climate, vegetation, insect populous and frog species.
Here are direct links to the information and products listed above:
Multi Purpose Insect Killer: http://www.non-toxic-pest-control.com/concentrates/multi-purpose-insect-killer-24-oz