Look what happened to the aphids in my garden!
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- Опубліковано 23 сер 2024
- This video describes the hands off approach I take to aphid control in my garden. The aphids in this video are cabbage aphids (Brevicoryne brassicae). Let me introduce you to some tiny parasitic wasps which control the aphids for me.
This video covers a period of 3 weeks - from the day the cabbage aphids arrived to when the parasitic wasps had the aphids under control. This happens every year at my place.
You can do this in your garden. By the end of this video you will know what to look for in your garden, and how to attract these little wasps.
This video was inspired by the positive reaction to some Instagram posts here:
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I am a new subscriber. I love your commentaries and love the education and the close up videos.
Thank you so much! 🙂
Excellent video Denis. I am very happy that you are reestablishing your UA-cam channel. We need more people online who are knowledgeable in this area to share their expertise. You have a very engaging and witty style. My only comment would be is that it is not really 'one minute' bugs. But I don't mind. I could keep watching!
Thanks Gabby! Yes they are not technically 'one minute' but 'one minute bugs' is too catchy a name to give up. (-:
@@oneminutebugs I understand!
Do a search for Hoverfly. Each of their larvae eat about 10 times more aphids than Ladybug larvae. I see Hoverflies begining in March/April (in mid-state New York, USA). I have an aphid problem on my vegetable/flower seedlings (which are inside the house). Early in the spring, I set some infested plants outside to attract the Hoverflies. Then, I bring those plants back inside. After hatching, the larvae will eat every aphid on a seedling within a couple of days. Then, I transfer the larvae to other infested plants. The problem I run into is that, even though I have a few thousand seedlings, after a few weeks the larvae have eaten all of the aphids and I have to transfer them outside where they hopefully won't starve.
No need, I have a video about them: ua-cam.com/video/mam4lSMborA/v-deo.html Depending on the situation and the species of aphid involved, hover fly larvae can be the dominant predator/parasite.
Soo interesting, thankyou
this is great. great content. I am pursing an entomology degree and this has helped me a lot to understand. I look forward to your videos. I would also like to know about the extrafloral
and their importance.
Glad it was helpful!
Go little wasps!!! ❤❤
Very informative as usual Denis , Thank you.
Thanks Heather!
Great videos new subscriber!
Thanks for the sub! Much appreciated!
I usually get ladybirds working on aphids in a couple of days, but now I will have to look for mummys too. Cheers
Yes, ladybirds are great as well. Both the adult beetles and their larvae are predators.
Informative as usual, cheers from Mildura
Thanks. It's been a while! Trying something different being in front of the camera.
I know I can buy ladybugs here in town. I know we need to release them on the plant infested. Will they mainly stay until all the aphids are eaten? I have baby oak saplings glowing in a tub of dirt that I later transplant into pots. Yesterday I noticed flies over tops of saplings, and then noticed the concentration of aphids!! I hosed them off to remove as many aphids as possible, but saw them in the top layer of soil. So I think I need to buy ladybugs to get rid of remaining aphids.
Hi Jennifer. They will stay as long as there is prey and they can go through their life cycle. At any one time there may be ladybird eggs, larvae, pupae or adults. Thanks for commenting!
@@oneminutebugs thank you for replying and for the helpful info. ☺️👍🏻
Jennifer, I do not know if they live in your area, but do a search for Hoverfly. Each Hoverfly larvae eats about 10 times more aphids than a Ladybug larvae. In mid-state New York, USA, I see Hoverflies in late March/April (depending on the weather). The flies look like bees (yellow with black bands), they hover around plants looking for aphids. I put aphid infested seedlings outside to attract the flies, they lay their individual eggs on the leaves (look like white cigars, 1/32" long). Then I bring the plants back inside the house. The larvae look like a cross between a leach/inchworm; they hold onto the leaf with their back end, then the head end sweeps in an arch searching for aphids - very interesting creatures. Each larvae will clean one seedling in about two or three days. Then, they migrate (or I physically transfer them) to the next plant. Since they are magots, not caterpillars, they cannot travel too fast or too far. I never found an anti-aphid spray which worked, Hoverfly are 100% effective and you don't have to buy them.
@@user-cq3qm4ps3z i think we have some of those flies but not many. Will look to see if anyone sells them.
Thanks so much for the videos! I'm curious.. How do the wasps figure out where the Aphids are? Is it a pheromone they produce or something? I'm just thinking, if I want to get a jump start on the issue.. Say, I have an aphid problem this year, I wait, but the wasps never come, and the hover flies don't either. Is there anything I can do to make sure they are there next year? I doubt anyone if farming them and selling them. If I'm wrong please share where I can purchase some aphid mummies with wasps in their tummies, or baby hover flies with hungry eyes. Short of that, this might sound gross, but I'm just curious if anyone has tried it. If it is a smell of some sort, what if I make it much much stronger. To do this, I take a bunch of plants covered in Aphids, cut them, bag them, put them in the freezer, shake off and collect the dead aphids, blend them with some water, filter it, put it in a spray bottle, and spray their fragmented remains onto next years plants? Unless.. I just thought of this.. The plants signal the wasps and hover flies.. I guess the plants would have to be blended and sprayed as well. If, by some slim chance, this hasn't been tried, let me know and I'll give it a go.
Thanks for commenting Joshua! Parasitoids (wasps) detect aphids from odours (chemicals) produced by both the aphid and the infested plant. Aphid parasitoids are available commercially here in Australia and in many other countries - usually sold as pupae.
Suppose an aphid is pregnant with daughters and a wasp lays an egg inside the pregnant aphid. What happens to the daughter aphids in the pregnant aphid? Do they eat the wasp larvae or do the wasp larvae eat them and their mother's organs?
Thanks for the question! All that remains when the wasp larva pupates is a husk. The wasp larvae eats whatever is inside the aphid - daughters and all!
When the aphids is not an aphids is when they are being egged by the wasp