Pest management in commercial aquaponics Interview Citizen Peng part 3


Jonathan: Hello sustainable growers. This is Jonathan from Melbourne Aquaponics. In this video, we’re going to see the third
part of the interview we had with Mr. Peng, who has a commercial-size greenhouse in aquaponics,
and he’s going to give us a lot of information about how to manage disease and especially
pests in commercial aquaponics. I hope you’re going to enjoy this video, but
just before, please subscribe to the channel, and if you haven’t done it yet, download your
free gift from the description of the video. But how you deal with pests like insects? Mr. Peng: Oh, yes. Pests are a nuisance. Right? The common damage done by insects is aphids. Jonathan: Yes. Mr. Peng: And the white tiny moth. Jonathan: Yes. Mr. Peng: To completely avoid them may be
impossible in my opinion. Jonathan: Okay. Mr. Peng: Unless you have a very tightly controlled
greenhouse. Jonathan: Yes. Mr. Peng: You use can neem oil – Jonathan: Yep. Mr. Peng: — mixed with pure soap, liquid
pure soap, and you know, mix it with water about 1:10, I believe. Then spread it with a spray gun. But make it very fine, you know, like a like
fog-like that can spread. Jonathan: Yes. Mr. Peng: Then you’ll control them. They won’t do any damage because the very
fine little droplets of a mixture will get it between their hair. On the surface of the aphids, they have a
very tiny little hair — Jonathan: Yes. Mr. Peng: — to stop the water from getting
in. But the one drop is so tiny it would drop
in and then they will damage the membrane of the insect and they die. Jonathan: So if you don’t have the good spray
gun it’s not going to work. Mr. Peng: No, no, no. You don’t you don’t use the normal spray gun. You need a very tiny like a fog – Jonathan: Yeah, very thin. Mr. Peng: — very thin, and then they’ll
work. And for the white moth, they will just dry
up. Jonathan: Die, yeah? Mr. Peng: Yeah, once they stick on it they
gradually just dry up and they drop off. Jonathan: Okay. The other effect is also that the soap is
going to stick on the leaf. So then when they want to eat, they’re going
to be touched with the soap. Right? Mr. Peng: The soap is only a natural lipid
so gradually they will be absorbed. Jonathan: Okay. Mr. Peng: By the leaf or if you have you know,
you can water it down. You can rinse it. They’re very easy. Jonathan: Okay, for you it doesn’t damage
at all your setup. It doesn’t – bacteria — Mr. Peng: No, no, no, no. Jonathan: And you don’t have a foam that is
into the water, you know. Mr. Peng: No. Jonathan: No? Mr. Peng: No, you just spray on the leaves. That would do the job. And most of the time, we don’t eat the leaves. Those things will grow only cucumbers, that
kind of thing, beans, that kind of thing. So you don’t eat the beans’ leaves. You don’t eat the cucumbers’ leaves, you
know. Jonathan: Okay, okay. And have you got a problem with caterpillars? Mr. Peng: Caterpillars, yes. The first thing first is not to let it become
a butterfly. Jonathan: Yeah, that’s a good one. Mr. Peng: But if you have a caterpillar there
is a product, a natural product. So it is at the top of the bacteria. Jonathan: Oh, yes. Yes, so it’s organic as well. Mr. Peng: Yeah, yeah. So you just spread. Jonathan: Oh, did you use it? Mr. Peng: Yeah. It’s a very effective. Jonathan: Okay. Otherwise, we got ourselves a black hornet. Mr. Peng: Yeah. The black hornet. Jonathan: It spawns inside the caterpillars. Mr. Peng: Okay. Yes. Jonathan: And they are working well but often
you got like two weeks between the time you got the caterpillars and the time they come. Mr. Peng: There are the two legs. Jonathan: So you got two weeks where basically
they eat all your crop. Mr. Peng: Right. Jonathan: Not all your problems are good problems. Mr. Peng: The revenge of the two legs. Jonathan: Exactly. Because especially the caterpillars when they
arrive on the tomato you know the tomatoes grow so fast, but then when the caterpillars
arrive, they multiply very quickly, as well. Right? It’s like that’s a challenge. But yeah, I found that the best way was to
cover a big biodiversity, yeah? Mr. Peng: Yes. Jonathan: In your crop. Mr. Peng: Actually, the biggest problem is
the slug. Jonathan: The slug? Yeah, you’ve got problems with that? Mr. Peng: The use of the greenhouse provides
ideal conditions — Jonathan: Yes, yes. Mr. Peng: — for slugs. So one way of dealing with it is to keep some
frogs. Jonathan: Oh, okay. Do you? Mr. Peng: Yep. I’m going to do it. Jonathan: You got the big one today? I’m French, you know. Mr. Peng: You are so unfortunate. You know, in this country, the frogs just
don’t grow big. Jonathan: Oh, yeah. They say. Mr. Peng: Usually, in a dry country they adapt
to dry conditions. They’re very small, but still they can eat. Yeah, frogs like to eat that kind of thing. Jonathan: And would you eat it the frogs? No. Give it to me. Mr. Peng: My suggestion is that you keep a
small basin of water. Jonathan: Yes. Mr. Peng: Cover it with duckweed. Jonathan: Yeah, okay. Mr. Peng: Yeah, let the frogs to multiply
in there. Jonathan: Ah, excellent. Mr. Peng: So in Australia, frogs only need
water to breathe. Jonathan: Yes. Mr. Peng: They don’t really need too much
water you know. They don’t actually live in the water. Jonathan: Yes, Okay. I got you. Mr. Peng: You know, a tough little bugger. So as long as you have that kind of moist
environment, they will grow. Jonathan: Oh, excellent. Excellent. Okay. All right. Thanks. Those are good tips. And in terms of water parameters, how do you
— do you check them often? Mr. Peng: Oh, yeah. Jonathan: If you are watching this video on
YouTube, you will see that on the description of the video just below, you will have access
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3 thoughts on “Pest management in commercial aquaponics Interview Citizen Peng part 3

  1. Shock Horror!! Mr Peng mentioned using Neem oil. WTF!! Neem will kill fish. If you are going to try it, you will need to make sure no spray hits your water, but it will accumulate in the system and then bang, you get your self a die off. I only use neem oil on my soil growing vegetables. Maybe a neem leaf tea could work, but people, do stay away from oil with fish in your Aquaponic system.

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