Leaf cutter bees-harmless, useful and often neglected pollinator

August 7, 2011

in A selection of my garden wildlife videos, Red mason & solitary bees, Solitary Bee Observation Box

Leaf cutter bees, rarely seen by many people but ever so useful!

rose leaf cutter damage

 

I designed my award winning solitary bee nest box for numerous reasons. I found the other commercial ones turned out to be’ death traps’ for the leaf cutters and red mason bees and I and my children had difficulty viewing what was going on.  Now everybody can view what is going on inside the cavities and even the cells with red mason bees! See 3 different species including leaf cutters in the video with interesting facts below.

 

Pollinators of our food under threat

We have all heard of honey bees, living in large numbers in their hives, bumblebees living in much smaller numbered colonies but many people have not heard of or are aware of another group of important pollinators of our food, particularly fruit and flowers. That group is the harmless solitary bees, which themselves comprise of 3 main groups of which there are around 250 species: miners, leaf cutters and mason bees. Like bumblebees, these important pollinators are under threat from their habitats being destroyed, pesticides and lack of forage. We were becoming increasingly dependent upon one species of pollinator, the honey bee, possibly because we also gained honey and other hive products from it as well as some crops from its pollination services. The difficulties that honey bees are currently going through should start to raise alarms. We simply  cannot rely upon one species alone to pollinate our food. We should start to help the other, less well known wild species in our quest for pollination and hence food supply and food security.

Where will they nest?

 

Leaf cutter bee larva in cell Nurturing Nature

This photograph was taken from one of my solitary bee nest boxes.

 

 A large diversity of leaf-cutters (Megachile) are strictly ground-nesters, as are a good number of Osmia bees.  For both, the nests are typically short, shallow, and sometimes branched. (pers. comm. JH). Usually, leaf cutters like mason bees, like to nest in a ready made cavity. Miner bees can construct their own cavities in sandy/loamy soil. However some leaf cutter bees will also nest inside containers, such a hanging baskets and plant pots. I suspect that the compost is something they can easily manage as they force their way through to make cavities. The leaf cells will contain a mixture of nectar and pollen and are very fluid as you can see above. They have to be waterproof or the liquid food would simply ooze out of the cell.

We can help them by providing cavities to nest in and there are many solitary bees nest boxes available to buy at garden centres. Personally I like watching these fascinating bees and have bought nest boxes, one almost 20 years old, that allows you to observe them up close, without too much disturbance to the bees. However, at the time they were probably the best available for bee observation. They do have major drawbacks.

 

Solitary bee nest tubes with mould Nurturing Nature

 

Moisture cannot wick away causing fungal infection of the pollen and the bee larva dies. Raw states ” Glass tubes have been found undesirable, because condensation on the inside of the tube killed the occupants”

Drawbacks

Being completely circular and acrylic any moisture that enters on the bee or pollen wicks into the surrounding material. i.e. pollen. This always carries a risk of fungal infection of the larval food, and thus its death, especially with red mason bees. The acrylic tube restricts the air flow and retains moisture. I have lost many red mason bees because of this. Yes they are fine for observations and have been used for years. But later in the year I did find that many bees were killed by the dampness and mould that grew in the tubes as you can clearly see above. I want to observe bees and their parasites. I want to increase bees numbers, not kill them! I would not use them now. The smaller the tube the greater the infection risk and I found the same thing happened to solitary predatory wasps.  The tubes area real pain to clean for adults and children. They made management of the bees difficult. Hence my design of nest box which I now sell! They have been a tremendous success and more importantly a success for solitary bees!

 

Nurturing Nature solitary bee nest box

 

Easily observe what is going on inside the cavities

The two most common species of leaf cutter bees in the UK probably are, Megachile centuncularis and M. willughbiella. Besides leaf cutter bees, mason bees and some small predatory solitary wasps   (with the optional extra nesting blocks) have all used the nest boxes.  The predatory wasps store living but paralised sawflies, aphids and caterpillars inside the cavities, then lay an egg with a hearty feast awaiting the young wasp grub! The different species of solitary bees and small predatory wasps, simply do not bother with each other, all intent on supplying for their own offspring and concentrate on completing their tasks within their cavity, each of which is in effect, the nest. So you are able to watch a wasp pile the caterpillars etc., in one cavity for its young with a mason bee or leaf cutter bee in the nest box! Each separate cavity is in fact a separate nest site for the particular bee os wasp species. If all the cavities are occupied, the females will go off in search of another nesting site.

 

Mason and leaf cutter bees can easily be observed in the transparent tubes but may die later in the year

 

The white polystyrene bungs at the ends of the tubes are to stop spiders, earwigs and other undesirable entering. If a bee finds a spider inside a vacant tube, she obviously will not use that tube nor will she tolerate an earwig being present inside. Spiders will occupy cavities as a shelter, probably before deciding to make a web from the cavity. Earwigs will shelter inside them and eat the pollen and stores of food intended for the bees.

 

Wooden nesting box for solitary bees- note bottom left cell has been sealed with mud

 

Another type of commercially available solitary bee nesting box. This one has at least one cell fully occupied and sealed by mud, a trade mark of a mason bee. Leaf cutters in my garden, do not use this type box at all, only the mason bees. Why is this? My research has found that without proper management, (details come with my instructions) these type of nest boxes, along with bamboo tubes, can also be a death trap for bees, over time when disease can spread from the cavity or mites take over each cavity leading to the death of the bee larvae.

Their life begins.

After emerging from her cocoon in which she overwintered, possibly late May or June in my garden, the female leaf cutters bees feed themselves up with nectar for energy and pollen in readiness for egg laying, find a mate and then go in search of a suitably sized cavity. Cavity depth, diameter and material will influence her choice. After selecting a cavity, she will, like bumblebees, undertake a zig-zag orientation flight in which she in effect, takes mental pictures of the entrance hole and its location memorising its exact location. Once found, if it was previously used by another bee, she will clean out the debris before the cell construction process begins.

Leaf cutter bee lines the cavity with leaves Nurturing Nature

 

Nest building

The whole process of nest making can take some time. They only live a few weeks so time is of the essence. Inclement weather stops them. They have only one brood a year and never see their offspring.  Time is very important to them. After mating and feeding up, she has to find a suitable cavity. Leaf cutter bees select a suitable rose leaf, lilac, beech or willow herb leaf, starting from the outer edge and using their jaws, (mandibles) cut a semi circular shape around the outer edge. As the leaf is about to drop she resumes flying and carries the leaf underneath her  body, using her front legs and jaws, to make it as aerodynamic as possible to give the least resistance and drag against the airflow. Ospreys carries a fish it has just caught, with the narrowest edges facing the way it is flying.She uses these pieces to line the cavity, making a cigar shape. She will construct a cell within the cavity,  find pollen and nectar to provision the cell, tamps down the food with her abdomen, lays an egg on top of the food mound, then seals that cell up with a leaf/saliva mixture and starts again with the next cell. As each particular cell can take nearly 10 hours to build and provision, with an average 21 trips to contruct the cell and 18 trips to provision the cell with pollen/nectar, the process can take a few weeks, particularly if the weather is bad. In essence, her life is based around a complex sequence of stereotyped behaviour: nest searching ➞ nest inspection ➞ leaf gathering ➞ pollen/nectar gathering ➞ egg laying ➞ leaf gathering ➞ leaf sealing and so on until that particular cavity is filled. She may lay 30-50 eggs if she is lucky, depending upon her finding enough cavities to fill.

 

Leaf cutter bee cutting a leaf, used as nest lining material

 

I would imagine that carrying the leaf must be rather tiring for the female leaf cutter as the leaf can weigh a 1/4 of her weight! Recently at Speke Hall in Speke, Liverpool, I saw this female having a breather, rather appropriately on a wooden table with two benches, one of those that we use to have a rest ourselves ! There was another leaf cutter actually inspecting old nail holes in the very same bench!

 

Female cutter bee with her nest lining material, having a rest at Speke Hall, Liverpool!

 

I have often seen them inside their cells on cold, wet or windy days, sitting there, with their heads just near the cell entrance, awaiting better weather. As it is the actual provision of food for the cells takes most of the time, it would help if we could provide suitable flowers nearby, (as unlike honey or bumble bees, solitary bees do not forage over great distances), for them to forage on. ( List in my instructions!)  Whilst awaiting better weather, I have seen them, particularly during the inclement daytime weather and early evenings, prepared to defend their eggs, waiting near the entrance with their jaws open ready to repel predators. Unfortunately, when they are out foraging for food and provisions the cells are left undefended. This leaves ample time for a host of predators and parasites to enter the cells and lay their own eggs…..  a topic in its own right!

 

Leaf cutter bee cells with an opportunistic mason bee in the last cell

 

Above you can see 3-4 leaf cutter “cigars”! each containing provisions, lined with cut leaves and sealed with a leaf pulp. However, this female may have died as she never constructed the very last feel. This was made by an opportunistic mason bee, which you can see is totally different. She has sealed the right od her cell with mud, provisioned it with pollen upon which she has laid her egg and sealed the entrance to the whole tube with mud. Would the leaf cutter bees be able to cut their way out through the mud wall with their leaf cutting mandibles ?

Yes you can view what is going on, BUT there is no oxygen exchange and no escape for moisture. I have found scores of dead bees over they years inside the tubes over the autumn and winter months. They are a devil to clean and remove viable cocoons. I needed a much easier option and one which did not kill the bees.

 

Leaf cutter bee cell ( cigar!) with a young bee inside shortly to emerge leaf cutter bee cell to the right and mason bee cocoon on left

Both of the above cells were lucky. They were overwintered, away from predators. Unfortunately the one below was taken by a bird, possibly a woodpecker that visits the garden looking at the damage to the front wooden cover. This certainly is a case of last in, first out!

 

Bee larvae predated by a bird whilst still in the cavity

 

A few little soil mounds in your lawn may well be a female mining bee or even a solitary wasp excavating a tunnel for her young. A few little chunks out of your prized roses, will likely be the leaf cutter bee, the bee hovering around a few holes in your wall could well be the mason bees. So next time you are enjoying your chilled glass of cider, or crunching into a juice apple, highly likely that the apples used were pollinated by one species of bee or another. Cheers!

At some stage I will be making a video!

See my new Registered Design award winning solitary bee box and bumblebee nest box both of which are radical, practical and educational, offering them a safer nesting environment in which you can observe the bees.

For more information about solitary bees and wasps visit BWARS

For more bumblebee information and to help save bumblebees join the Bumblebee Conservation Trust at Stirling University

For a MS word doc info sheet about leaf cutters from the Natural History Museum, download here

Refs: Besides my own experiences and observations…..

Anon, (2009), ” Solitary Bees”, International Bee Research Association”, Cardiff

Mader, E et al (2010)” Managing alternative pollinators”, Natural Resource, Agriculture and Engineering Service, New York

O’Toole, C, (2000), “The red mason bee, taking the sting out of bee keeping”, Osmia publication, Banbury

Pers. comm JH James H. Cane , USDA-ARS Pollinating Insect Research Unit Utah State University, Logan.

Raw, A (1998) “Nesting biology of the leaf-cutter bee Megachile centuncularis (L.) (Hymenoptera: Megachilidae) in Britain”.
ENTOMOLOGIST. Vol. 107, no. 1, pp. 52-56. 1988.

Raw, A (1972) “The biology of the solitary bee Osmia rufa”, Trans. R. ent. Soc. Lond. 124 (3), pp. 213-229, I fig.  1972

 

Thanks for photo of damaged rose from Neil Bromhall an interesting web site….  www.rightplants4me.co.uk

 

 

{ 54 comments… read them below or add one }

marian morrison August 16, 2011 at 10:17 am

Hi George. Read all the above with considerable interest and whilst writing this our leaf cutters are still very busy in the box, amazing!! Please keep me informed regarding the bumble bees. Kind regards Marian.

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nurturingnature August 18, 2011 at 8:06 pm

Hi Marian, I will keep u posted re bumblebees and when i get some time have quite a lot to write re solitary bees! Wish mine were still active ! Cheers George

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Mary April 29, 2014 at 9:50 am

Hello, I noticed a swarm of small bees going in and out of a disused bird box…any idea what these are and are they harmless? Should we leave them alone?

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nurturingnature April 29, 2014 at 4:36 pm

Hi Mary, I suspect, that it may be B. hypnorum or tree bumblebees and it may therefore be males performing their drone dance. Please go to….

http://nurturing-nature.co.uk/wildlife-garden-videos/tree-bumblebee-b-hypnorum-and-the-dancing-drones-video/ and read the comments. Cheers George

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Richard June 19, 2014 at 11:05 am

Hello, whilst in the garden yesterday I heard a very distinct clicking noise near the birdfeeders, and on closer inspection saw it was some kind of wasp or bee? Cutting a semi circle from a leaf, the thing is it was more wasp-like in colour than in your pictures, could it be other than a leaf cutter bee? Thanks for any reply

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nurturingnature June 19, 2014 at 6:50 pm

Hi Richard there is more than one leaf cutter bee. Go to Bwars site and type In megachile to see them. Cheers George

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Jo June 21, 2014 at 12:58 pm

Hi
My daughter and I have just spent a fascinating hour watching a leaf cutter bee making nests in the small round screw sink holes underneath our garden bench! After she had left to cut another leaf we quickly overturned the bench to find two cells already plugged. M daughter filmed it so she can take it to show her class as they are currently learning all about bees. Lovely to see.

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nurturingnature June 21, 2014 at 3:07 pm

What a great little story for a potentially budding wildlife film maker! Thanks for sharing that! Cheers George

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Jo June 21, 2014 at 1:05 pm

We also have what I believe to be a bumble bee nest in a cool corner of our garden which contains our wood store, and is covered with tall trees. I can’t see exactly where they have nested but we have seen, and heard the slow quiet drone, of bees busily coming and going for days to the one spot. We feel proud that they have chosen our garden in which to make their home. My daughter used to be frightened of them but now loves watching them go about their business, oblivious to us.

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nurturingnature June 21, 2014 at 3:09 pm

Another happy story, for several reasons. You feel proud to have been selected by a queen to nest in YOUR garden, your positive attitude to bees and great to hear your daughter now loves watching them. I had 3 daughters myself and they did likewise!! Thanks, George

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Sonia June 21, 2014 at 4:07 pm

I have just noticed what I believe to be a leaf cutter bee flying in and out of a cavity within one of my pots of lavender. At first I was puzzled and then I decided to have a look online and found this article. Nature is fascinating!!!!

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nurturingnature June 21, 2014 at 10:41 pm

It is Sonia, its why I find the time to keep writing my articles.The more I learn, the more I share :-) Cheers, George

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Kate June 23, 2014 at 8:34 am

Hi, have just found your site whilst looking for information on leaf cutter bees. We have just discovered several making nests in plant pots in my mother’s small greenhouse. As it is a confined area would it be safe to remove the plant pots from the greenhouse or would this agitate the bees enough for them to sting. She doesn’t feel very comfortable leaving them in there and would like them to be removed. Any ideas or information greatly appreciated, thanks.

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nurturingnature June 23, 2014 at 9:00 am

Tell your mum she is very lucky to have leaf cutters in her green house. They will be out in her garden pollinating all kinds of fruit, vegetables and flowers enriching her life and her neighbours. These harmless bees do not make honey like honey bees who will use their sting to defend their food. Leaf cutters bees do not do this.I have taught many 100′s children over the years about leaf cutter bees and have turn a misconceive fear of them ( usually due to parents fears!) into admiration of them., Cigar bees as they are known to the kids! I would leave them exactly where they are and enjoy them whilst she can, they will be dead soon leaving next years generation in their leaf cigars! Please get back to me and I will advice further.

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Sue June 24, 2014 at 6:33 pm

Hi There, I have a generous allotment and I try to be as wildlife friendly as possible. Last year I treated myself to one the wooden solitary bee boxes (the same as in your picture) and have been checking it regularly for any action. Today I checked and notice what looked like fine sawdust debris, on closer inspection two of the top holes appeared to be occupied, I looked again later in the day and noticed that one of the holes had just been lined with a leaf, does that mean it is a leafcutter? As I noticed in your right up they did not appear to nest in yours.

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nurturingnature June 24, 2014 at 8:53 pm

Hi Sue, Yes it appears you may have leaf cutters and yes they do use my nest boxes!! see then here….
http://nurturing-nature.co.uk/wildlife-garden-videos/leaf-cutter-bee-megachile-using-observation-nest-box-video/
and also to appear in my new video soon!

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Dawn July 1, 2014 at 9:51 am

I am so happy to have found your site. I’d noticed a solitary bee entering and exiting my greenhouse carrying leaves when entering and had found one of my plants to ‘rest’ on, but on closer inspection found it had burrowed into the soil. I knew I needed more information and came across this site. Thank you for the insight you’ve given your readers and thank you in helping me understand these wonderful little creatures

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nurturingnature July 1, 2014 at 4:34 pm

My pleasure Dawn. Cheers George

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Paula Large July 5, 2014 at 3:34 pm

Great website. Thank you. I have been watching a couple of leaf cutter bees that have been busy making their nests in one of last years hanging baskets that I haven’t re planted this year. I just have a couple of worries. If it rains will it wash the nest away? and also the basket is situated just above my gas barbecue, will the smoke harm the bees. I’d hate to do them any damage. They are such a pleasure to watch.

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nurturingnature July 5, 2014 at 5:06 pm

Hi Paula, thanks a for your comments. Hm, drown your bees or smoke them? :-)

The leaf pieces they put together would allow rain, or damp to enter the cells. I would see if you could put some kind of waterproof roof over the basket as a precaution. If possible delay your BBQ for a short while it will not bee long before the females die and their offspring can then be moved to a better mouse proof location. Hth cheers George

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Paula Large July 5, 2014 at 5:49 pm

Thanks George
I’m quite happy to do what you suggested. How will I know when it’s safe to move the basket?

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nurturingnature July 5, 2014 at 7:57 pm

When you no longer see the leaf cutter bees. Beware the mice and monodontomerus wasps though, a video is one my web site. Hth cheers, George

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Paula Large July 5, 2014 at 8:11 pm

Thanks again, mice not a problem, can you suggest any deterrents for the monodontomerus wasps. I did watch your video. Sorry to keep asking, but I kind of feel responsible for these lovely bees. Used to be terrified of bees/wasps as I stood in a wasps nest as a child!! Still not got over my fear of wasps though!

rose Simmons July 8, 2014 at 11:08 am

Hi George,I noticed they 3 of my large roses, which I grow in pots, have been severely attacked by what I now know is the leaf cutter bee.I also found a large amount of the cuttings burried in another pot of summer bedding plants,, I was just about to treat the whole lot with a pesticide but decided out of curiosity to look up the problem online,,, I am so glad I did. Thank you for the information, I will not be spraying now, as I too realise the benefits of bees, as I have fruit trees in pots as well, I am an elderly gardener, and live in a small bungalow with no garden so grow everything in pots, thanks again for the educating information,, Rose

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nurturingnature July 8, 2014 at 6:57 pm

Good for you Rose. Glad you thought before you did!! Enjoy your bee pollinated fruit! Thanks for your comments too! Cheers, George

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Al July 10, 2014 at 7:48 am

My bees made 5 nests, but this morning one looks disturbed and the others have moved from being sealed from the mouth of the tube to half way down it, what’s happening

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nurturingnature July 10, 2014 at 7:30 pm

I assume you mean leaf cutter bees? There are rather scruffy nest makers. I have found that sometimes they simply leave pieces of leaf scattered inside a cavity. They may do this to store them whilst they feed and come back. The do get eaten and they do die before completion. Fingers crossed they will return. Cheers George

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Anne Marie July 12, 2014 at 9:22 pm

Hi not sure if this is still a visited site ….. However I have just brought a small narrow boat, and am in process of painting etc and have noticed a leaf cutter entering the rail that runs the length of the boat. Have read this article with great interest. I had planned to turn the boat around, however I may wait a few weeks to give her a chanceto finish her work!! :)

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nurturingnature July 12, 2014 at 9:48 pm

What a lovely gesture! It will not bee that long before she dies :-( thanks for letting me know. George

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carole July 13, 2014 at 2:11 pm

hi, just been watching leaf cutter bees in my garden going in and out of my hanging flower bag,i can’t wait to have a look later in the year,
We also have some type of bee in our roof under the tiles I feel so lucky ,am a complete bee addict.

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nurturingnature July 13, 2014 at 4:53 pm

Probably tree bumblebees under roof tiles. Will bee! All dead soon :-( cheers George

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Hilary July 18, 2014 at 10:27 am

We have just discovered leaf cutter bees in the holes underneath our favourite bench seat. We were puzzled as to why they were buzzing round our knees as we sat there and so we investigated. I now intend to construct a bee house from sawn lengths of garden cane and hope to persuade them that this might be a better option for them. (Not quite sure how we will do this!) Thanks for a very interesting and informative article.

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nurturingnature July 18, 2014 at 4:44 pm

Hi Hilary, Nice story and thanks for your comments. Although they are harmless and them buzzing around your knees is interesting, continually nesting in the same cavity will eventually lead to them being unsuccesful there. Difficult one for you… wait until late spring next year and check them out, block the holes to stop them using before they start again up then offer your alternative homes! Cheers, George

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Hilary July 19, 2014 at 12:32 pm

Thanks for the advice. the new bee house is in place under the seat, so it should be easy for them to find and check out. So far they seem to prefer the screw holes in the seat. I think we can live with that!

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carole July 20, 2014 at 1:31 pm

how long does it take for leaf cutter bees to emerge from their pod? I don’t want to disturb them unless I have to.

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nurturingnature July 20, 2014 at 6:23 pm

Hopefully late spring/early summer next year !! Cheers George

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carole July 20, 2014 at 10:05 pm

that long, thanks.

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nurturingnature July 21, 2014 at 10:33 pm

Thats nature!! Cheers, George

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deb July 21, 2014 at 4:42 pm

We had tree bees in a bird nest box April to June is it okay to empty the box in the autumn and could they return next year. As much as I enjoyed having the bees I also want birds what do you suggest?

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nurturingnature July 21, 2014 at 10:31 pm

Yes OK to empty the box, likely you will have wax moths inside it….
http://nurturing-nature.co.uk/wildlife-garden-videos/bumblebees-and-wax-moths-the-silent-but-deadly-killers-must-see-video-2/

Either way completely clean out the nest box, put nest onto compost heap or bury it to decompose. Difficult to stop bees seeking out a place to nest…. Cheers, George

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Maureen July 21, 2014 at 8:22 pm

Hi George, I have a leaf cutter bee making a nest in my greenhouse. It is in a pot of parsley and the bee is going in through a drainage hole in the bottom, lovely to watch. Should I stop watering altogether and will the nest survive over winter in a very cold greenhouse. Thank you. Maureen.

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nurturingnature July 22, 2014 at 5:33 pm

will email you Maureen. G

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Maureen July 23, 2014 at 8:07 am

Thank you George. I will do that.

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Daphne Golding July 23, 2014 at 8:19 am

Hi, I came across this website whilst seeking info on what I thought were bumble bees carrying leaf pieces as they flew. One was seen entering the drainage hole of a suspended planted pot. How will I water the plant? I do not want to upset or harm the bees. Could I feed the plant by spraying the leaves with plant food when the bees are not around?

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nurturingnature July 23, 2014 at 8:20 pm

Hi Daphne, If possible could you get me a photograph please….of the bee preferably with a leaf!! Thanks, George

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nurturingnature July 23, 2014 at 10:12 pm

Daphne, done some research and contacted a solitary bee expert. It’s fine to water the cells, they are waterproof!! Hth cheers, George

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Daphne Golding July 27, 2014 at 10:00 pm

Hi, I managed to take a photo yesterday of one of the bees as it rested on the shed wall, with a leaf on tow! It was a very hot day and the poor thing must have been tired as it rested there for quite a while. Sent the picture by email to website. Hope you receive it.
Daphne

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Heather July 27, 2014 at 6:58 pm

Hiya, thanks for the info! I’ve got a small disused planter in my garden, it’s a bit weedy but I didn’t want to throw it out as it was in a nice watering can shape hehe, anyway, I’d noticed bees going inside the planter, looked like they’d made holes in the earth in there, and there always seemed to be bees going in with bits of leaves, so I’m guessing these were leafcutter bees! They seem to have left now, but I did have a sneaky peek inside and there were many leaf ‘cigars’. These have bees waiting to hatch? How long dos it take? Will it be next spring when they emerge?

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nurturingnature July 27, 2014 at 8:39 pm

Hi Heather, yes hopefully have bee larva inside and yes hopefully you will have adult bees late spring! If you can take a photo of the cells inside the planter and if it is suitable I may put in the the page. Thanks for sharing, Cheers, George

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Vanessa July 27, 2014 at 9:33 pm

I brought a bee house last year which was just a frame with bamboo tubes in it, it was very inexpensive but was the best money I’ve ever spent. I was lucky enough to have leaf cutter bees in it the first year, they filled all of the tubes and all but one hatched out. I,ve got two houses this year and my leaf cutter bee,s are busy filling the tubes, I,ve even got a couple of tubes filled by a maysonary bee. They are an absolute joy for me to have in the garden and even find the holes in my rose leaves really quite charming. I would recommend buying a bee house to anyone that loves nature. :-)

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nurturingnature July 28, 2014 at 3:39 pm

Absolutely right although I am against tubes and the like as per my article and previous experiences! Thanks for sharing, George

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Ian Savile July 28, 2014 at 3:01 pm

Hello,
Thanks for this information. I have a couple of the solitary bee homes in my garden, which have bamboo stems for the bees to make nests. A few years ago I saw mason bees flying in and out, and this year some of the tubes have been filled with leaves, and I have seen bees flying in with their leaf building material. It would be good to know what should be done at the end of the season. Will this year’s bees leave the tubes in a condition to be used again? Should I replace them with new baboo? Should I clean them out?
Thanks,
Ian

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nurturingnature July 28, 2014 at 3:42 pm

Hi Ian,I am against bamboo canes and the like as per my article. The leaves is turn brown and not used again. The soft green leaves are more amenable to being manipulated and chewed by the bee. Yo have to split the canes open and clean the cocoons out. I will email you! Thanks for sharing, George

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nurturingnature July 5, 2014 at 10:55 pm

Hi Paula, I will email you. Cheers George

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