could be mosquito lava (can't think how to spell that correctly!!) making sure the bin is covered with a close fitting lid helps stop them getting there in the first place but without seeing one, they could also be amphibians like toads, frogs or newts too. if you are convinced they are not tadpoles etc, either use a mesh filter to scoop them out and leave them on the grass or pathway for the birds to eat especially if hot and sunny but not when it is raining or damp, or you can give the water a good stir up if it is murky (the lack of light and oxygen usually does for them after a few days stirring, or if that fails, you can get an organic water butt cleanser that helps to kill of bugs and beasts, can't think of what it called at the moment but try the internet search engines
depends on what they are but meat eating birda like starlings eat anything. blackbirds will eat just about anything meaty too. can you see 2 black dots on the round body bit like unformed eyes? but if they are put out in the sun and dry, as they are living in water now, I doubt they'll survive for long, or the old gardeners way is to place any bugs they don't like into pots of parafin but that is hard to get now I think. the only thing I have ever seen that big still in water are amphibians. i found this site earlier, if you have some spare time might be worth a look?
sorry, my days at uni were around 10 years ago and I did environmental management. we had to learn how to identify the things we were supposedly looking after etc, bugs and beasties just didn't do too well on when I didn't have my reference book with me, with the book though I am ok now I am studying another degree but at home as a second degree at uni is too expensive, this time it is mainly flora as it is a medical herbalists course. my son is studying ants at the moment. he found a nest a the base of a eucelyptus tree in my garden, dug it out a bit then kept pouring water in the hole to drown them, it shouldn't be, but was really funny, the workman like manner he filled his watering can up from the paddling pool and poured it in the hole, great vid of it too
misi... just done a bit more research. i think they might be Dronefly larva. do you think this is likely?
if so, will they be harmful if they hatch (not sure if thats the correct terminology) or will they be useful in the allotment?
that sounds like an interesting course. sounds like your son is a chip off the block! im starting a btec horticulture course in september. how do you find it studying and being a single parent at the same time?
droneflys? possibly, will have a look. but I thought dronefly larvae were classed as maggots, but it was a long time ago I did this sort of thing if you sweep the larvae out and leave on the grass in the heat, they won't do much else except be food for birds. as my latest degree is home based, no probs being a single parent, I do it when he sleeps, usually from 10pm to 10am no really, I do a lot of work between 9pm and 2am and then finish the week study off when he is with his mum. it can be a struggle sometimes but then when I go out on field trips like we did a few weeks back across the local fields to do a plant ident module, he came with me and helped me pick the flowers/herbs we found. weren't supposed to pick them but he thought is was great fun. I now have a box full of dried up and shrivalled plants which when he has forgotten about them, will go on the compost heap!!
sorry to crash the thread, but seeing as we have people on here who might know.... anyone know how to stop maggots in the green bins?? I have a composter so don't use a green bin, but my neighbours bin always has maggots by the end of the fortnight - she uses compostable bin bags too?????
I have no idea about your bugs - was going to suggest mosquito larvae, until you said they were 2cm??
yes, theres not a lot you can do apart from make sure the lid is on properly and tight. I used to have this when I lived in an area that you put food waste etc into a green bin, was collected every 2 weeks, during the summer I used to take any waste in my car to my shops bin as that was emptied twice a week. a suggestion by the council was to place all food waste in a sealed plastic bag which defeated the whole idea of this collection as the waste was composted but how could you compost plastic bags????????
forgot to say, a blue bin would be more useful as flies cannot see blue. thats why old houses kitchen walls were painted blue, so flies didn't land, but the council didn't thin of this, composted green waste/food is considered green so you had a green bin? otheer than that, just had a thought of using tea tree oil. a few drips around the edge should help see off flies, but would become quite expensive as you would have to renew every day during the summer
Def sounds like drone fly larvae - when they 'hatch' they look like bees and are good pollinators! The larvae have a horrible name - it's something like 'rat tailed maggot'. I freaked out when I found them in my tiny pond but then left them too it and they all disappeared - I presume they evolved and flew off.
apparently so, something to do with ultra violet and something!! I think it is because most flies use infra red to see so the blue spectrum is invisible to them but not sure exactly. all I know is that blue walls in kitchens were very popular and an experiment I saw in a dutch uni when on a field trip there some years ago, they had a ''room'' full of flies the walls and everything else was blue but there were red patches here and there, and the only places the flies landed on were the red patches, the blue was completely free of flies
Not sure exactly how long Manky - we when we went on holiday they were there, when we came back they were gone. Also hard to say how long they were in residence because I didn't notice them until they were freakishly big!