Hi, I live in New Zealand (though my husband is Texan), 7km (4 miles) from the West coast. We have a VERY temperate climate. In Winter (which is now here) our average minimum temperature is 3C (37F), and our coldest on record ever is -4 (24F), our average winter maximum is 13C (54 F). This means that we do have frequent frosts, but they melt by about 10am, and a simple covering is usually
enough to kept the frost away. In the hottest months of summer, our average minimum is about 13C (54F), and our average summer maximum is 22C (72F), and the highest on record is about 30C (86F). From what I have read, BSL breed at 24-32C, and we might hit those temperatures maybe three times over a summer. Other parts of the country are 10C (16F) degrees or more hotter in summer, so black soldier flies do live naturally in parts of New Zealand.
After three years of searching, I have finally found a source of them that is getting posted to me this coming week. I will need to experiment with breeding them indoors, but it is not an easy thing to do. (I have found this simple idea
https://www.youtube.com/watch?v=efdGyefvnWA ).
I am going to separate them, and let some breed up slowly in the cold, and other breed more quickly in heat, so I have a few tries at at. The main food I was going to feed them was cow, pig and goat manure, so I am not sure about the fat content of that.
As black soldier fly and crickets/locusts enjoy similar temperatures for breeding/hatching, I could probably actually make a little box that does both together. Come summer, I also want to find and experiment with native crickets that probably have lower breeding temperatures.
What would work well in our content is
compost worms, but because of the climate, the tiger compost worm (eisenia Fetida) out-competes the red worm (Lumbricus Rubellus) which breeds much more slowly (like one viable offspring a fortnight) and the blue worm (Perionyx Excavatus) which breeds profusely, but in warmer climates than New Zealand compost reach. From what I understand the Eisenia Fetida excetes a substance that is toxic in large substances. I have tried without fail to source the Blue worm - one grower has separated a few that they will send me if they breed up enough, and another will separate some if they re-appear over summer, but there are none visible now.
In the mean time, I am going to try and make my own segregated colony of only red worms, and breed up enough over a few years to start feeding them to chickens. As they breed so slowly though, I am estimating that I will need about 20-30kg compost to sustain the breeding adults and breed 1kg of worms from them. This seems quite a low conversion rate. But as it has to be collected, and is free, it is better than composting it.
I have not seen Dubai Cockroaches for sale in New Zealand - and there are very strict quarantine laws here, so I could not bring them in. I really want something that will eat the manure, and also the tree mulch that other animals won't. I have wondered about slowly breeding wood lice (wood slater / roly poly) - but there is little information about that. Any other ideas?
Annie