Virginia Home Grown
Beneficial Insects
Clip: Season 25 Episode 5 | 6m 26sVideo has Closed Captions
Learn about beneficial insects you can release in the garden to combat common pests
Alejandro Del-Pozo, an entomologist working at the Hampton Roads Agricultural Research and Extension Center, visits the studio to discuss how lacewing larvae can be used in the garden as a natural aphid pest control. Featured on VHG episode 2505, July 2025.
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Virginia Home Grown is a local public television program presented by VPM
Virginia Home Grown
Beneficial Insects
Clip: Season 25 Episode 5 | 6m 26sVideo has Closed Captions
Alejandro Del-Pozo, an entomologist working at the Hampton Roads Agricultural Research and Extension Center, visits the studio to discuss how lacewing larvae can be used in the garden as a natural aphid pest control. Featured on VHG episode 2505, July 2025.
Problems playing video? | Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipI love seeing insects in bins.
>>Well, yeah I brought you tonight some of the beneficials.
>>Yes.
We're gonna talk about the good guys tonight.
Because people don't realize all the good guys that are out there.
>>Yep, yep.
So here we have some of the ladybugs and I actually made it on purpose.
Here on top we have some of they actually feed on plants, not necessarily all the ladybugs.
So you gotta make sure that you identify properly your specimens that you have.
But usually you and I were talking about it.
The spots are the ones they're gonna give you away.
Why ladybugs?
Because they feed on aphids.
>>Yes.
>>And they're just, devour those aphids.
So you have your tomato plants or something like that.
You want to promote those ladybugs, right?
So then we have all the Carabidaes and all the different beetles that goes on the ground.
They're feeding on all these different caterpillars and other insects that are at the ground level.
And then we have this beautiful, I want to give them a shout out.
This beautiful hover flies or surfer flies.
They actually, the maggots, the immatures are the one that feeds on aphids and they're phenomenal.
And then you have all this different array of wasp, the dragonflies and even the sassing bugs.
So we have everything in between.
>>It's so cool.
And don't forget my friends, the velvet ants there.
>>Oh yes.
>>All that which are not ants, but they're wasps.
>>Yes, yes, that is true.
And they are, they are really good voracious.
And they'll help clean up some stuff.
>>Yes.
>>In the ground.
>>And these are wonderful, but how do we get them to our garden?
Because we try to plant and hope that they will come.
But sometimes they need some help.
>>Yeah.
So thank you guys for the team to do the video.
And also in the video we talked about it, planting flowers are one of the first steps to bring, to welcome these guys.
I called them the little airports, if you will.
So if you need them to land in your property, plant those flowers and welcome them to come and join you guys, because that's what we want.
We want to promote their person.
They're always there.
So they don't know where to go.
You put a flower, you protect them, you give them shade, you give them food, and you give it that alternative that they can rest.
So they will be able to be in your garden.
>>Yes.
And you also identify them.
You don't think that every bug is a bad bug.
>>Yeah, that is also true.
That is also true.
So I think actually I brought you, I brought you something real quick that we have here.
So let me show you.
So here's an example of this is two spider spider mite.
>>Yes, and look at that damage, 'cause of the sucking or the mouth parts are stippling, these little dots.
And that's an indicator.
>>That's an indicator.
So this is pretty common.
When you have in your garden and things and your plants are stressed, you're gonna see these guys.
And definitely you want to pay attention to your watering and maybe trying to release some beneficials if you are into wanting to protect the plants that you're taking care of.
So that's kind of like the idea.
>>Right, so what beneficials do you suggest that we turn to first?
>>So in the video I touch a little bit about augmentative biological control.
>>Yes.
>>And something that anyone can do it.
You can go and purchase this laboratory rear beneficial.
So here I have an example.
One of the most common purchased beneficials are the lace wings.
Here is the presentation of the eggs, they're round.
And the idea is that you can buy these eggs, they're brown and they're gonna be able to sprinkle, if you will, into your plants.
And those are gonna hatch.
And then you're gonna have the immatures that are called the aphid lions.
>>Yes.
The voracious eaters.
>>Yes.
And here's an example of live aphid, oh no, this is not the one.
>>Yep.
That's the one.
>>Here we go.
So some of them might be moving it in the bottom.
So the idea is that these guys are gonna be searching for the prey, searching through all the plants and eating and using their mandibles in order to actually pierce and suck all the juices from that aphids.
It's just amazing.
>>It is amazing.
It's so cool.
>>Yep.
Yep.
>>We have to be nice to them.
But how do they arrive?
>>That's actually, I want to show you guys this.
So these cardboards are actually one of the technologies.
They're the beneficial insectaries will ship it to us because they're so carnivorous, so voracious they can eat each other.
>>Oh my gracious.
>>So they have to be separated individually.
So now you peel this and actually you can shake it.
It's very straightforward because then when you are in your plants or in your garden, you're gonna actually gonna see them going in action and killing the pests.
>>That is so cool.
That is absolutely so cool.
And I appreciate you telling us, because I think we get the them in the mail and we're like, what do I do next?
But how do I do this?
>>Yeah, yeah.
Yes, absolutely.
So there are some instructions, but the best will be, keep in mind that if you're in the heat, you don't want to, these are living organisms.
So something that we need to consider is that since they're living organisms, you really want to keep that in mind and to give them some shade, put it at the end, like close to the evening or early in the morning and then try to put it on protected areas.
>>Sounds good, and some of the flowers that are available that we can use to basically attract these insects.
>>Yes.
>>There's such a wide variety.
>>Yeah and actually these flowers come from the demonstration garden that you guys saw over there.
>>Oh, love it!
>>And there's a beautiful garden right now.
And the idea to bring these flowers is to show all the viewers that there are different shapes, sizes, colors.
For example, one of the experiences that I have is using sweet alyssum during the cold times and actually when, because they really like the cold, that to attract the hover flies, the surfer flies.
So the adults feed on those sweet alyssum and then they're gonna lay the eggs surrounding your garden.
And those maggots are gonna be the ones that are gonna be eating all the aphids.
And then on like that you got the black-eyed Susans all the different ones.
They're gonna be attracting different pollinators and beneficiaries.
>>And it's so important to think, just don't plant daisy type flowers, just don't plant, I'll call like flat flowers like Queen Annes lace and stuff, but to make a wide variety of shapes, sizes, and colors.
>>Absolutely.
And also the idea that you and I, we were talking is how to stagger them.
When our start flowering, you want to prolong that blooming period.
That will be the key.
That's the actually the most difficult part.
Trying to piece those together in order to get that long time for them, for all the beneficials and the pollinators together in your garden.
Absolutely.
>>Excellent point.
And I thank you Alejandro.
Thank you so much.
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