Great pest management video! Should be mandatory viewing for all new JBP owners. 👍

The insects were attacking this tree from the top and the bottom, I hope it does well now!

Thanks for providing this video. The closeups for the aphids both top and bottom are extremely helpful to see. It allowed me to confirm that my a Japanese white pine is suffering from the same issue.

Thanks for this video - bump. I just emailed Bonsaify about white residue on exposed root black pines. 90% sure it is adelgid. I will pressure wash the buggers off tomorrow (taking care not to harm the foliage of course).

I have often had woolly aphids on a golden Scots pine . I find a good spraying with water containing a good squirt off washing up liquid (dish soap) works well and isn't to harsh to anything else. Fantastic video . Thanks for sharing. 😁😁😁👍

Thanks for addressing this often overlooked topic

Now I know what to be on the lookout for with my JBPs. Great video, Eric.

Quite useful. Thanks for sharing.

thanks for the info

Foist!

Nice 👍👍👍

In Santa Barbara Beatles are killing pines. Great work

Olá do Brasil.

Nice Bonsai 🙏

great video i hope i dont get that on my black pines im here in West Virginia i love watching your videos

Bom dia meu amigo!

❤❤❤❤❤

Thank you for this informative video with close up shots of the adelgid and especially the root aphids. What solution of pyrethrin did you use, in what dilution, and you can tell us where you obtain it?

@Bonsaify

2 жыл бұрын

Pyrethrin is sold in the United States under a number of brands - it is an extract of chrysanthemum flowers, but even though it's organic in origin it is a chemical so please be careful using it. You can obtain it at most garden centers, here is one type available on Amazon: amzn.to/3J1GoWj Whenever you use pesticides, you should follow the dilution instructions carefully that appear on the label. As different brands will be sold at different concentrations you should not rely on anything other than the label. The dilution I used in this video was the standard spray dilution for the particular brand i was using. Most consumer brands will have friendly dilution directions for small batches, while many brands like "Pyganic" or "Evergreen 60-6" and other commercial oriented containers will have dilutions that are something like "8oz per 100 gallons". Mix only what you will use within a few days and follow the label instructions for disposal of excess. Lastly, pyrethrin is toxic to cats (dogs are fine, it's used as flea control on them) in concentrated levels. So please be careful if you have feline friends. Alternatives to pyrethrin are Safer Soap (potassium salts of fatty acids) which will work just as well for the apjhid dunk, but not quite as well for the adelgids. You can treat adelgid by stiff sprays of water alone, it's just that it will take multiple longer sessions to entirely remove them all.

@themichaellerner

2 жыл бұрын

@@Bonsaify Thank you again, Eric, for the depth, detail, and thoughtfulness of your videos and especially your replies to questions. Though I live on the East coast, I hope I will get to meet you some day as you are not only so knowledgeable about bonsai but are also such a very nice fellow.

Hi. It seems like a pine hermes. I had a same problem, i think, in last season.

Bayer tree and shrub systemic along with a systemic fungicide keeps most at bay for my Black Pines.

Eric, great video on a topic there is not much on in KZread land. Have you any experience with using nematodes for root aphid control? Most of my trees are in the ground so dunking is not available. Thanks for sharing.

@Bonsaify

2 жыл бұрын

Hi - no, I've not tried nematodes, mostly because the cost is high and I don't really understand how it might work. I've been working with an ag expert in Florida on the JBP root aphid species. Among apprentices in Japan, and other growers that are aware, the consensus control method seems to be to use granular systemic imidacloprid, which is unfortunate. My experience is that the systemics only work as a contact in effect because the chemical absorbed translocates only upward, and not from one root to another root. Still, I would imagine that in the ground the aphids would remain near the surface rather than chasing deep into the ground where the tree is heading, so the effect would be smaller. Jonas and I are also finding that the aphids have a less significant effect on older trees/ larger trees than they do on the young 1-2 year old seedlings.. (which they can outright kill.) Yet I'm concerned about them being a vector for fungal pathogens as much as themselves.

Are these the same guys I find in my juniper procumbens nana needles? Little white specs?

@Bonsaify

Жыл бұрын

No - that's minute cypress scale. The two pests in this video are root aphids (host specific) and adelgid, which is similar to an aphid but smaller.

At 9:30, which spray were you using to treat the canopy/foliage/interior?

@Bonsaify

2 жыл бұрын

It's the same solution as the dunk - diluted pyrethrin.

Hi, what do yellow tips indicate? what causes root aphids? is it possible that this young plant is weakened due to stunted growth without a sacrificial branch? I found crown gall on an apple which I cut and has been growing well but with aphids which I treat, as all of my trees, with 2 times a year insecticide + 2 times fungicide + Bordeaux mixture in winter and lime sulfur in late winter.

What do you use for the pyrethrin? What ratio? Thank you for this very enlightening video,

@Bonsaify

2 жыл бұрын

Bob - please see my reply to Michael Lerner on the same question (I'd say "above" or "below" but comments move around based on the number of likes they get.)

@bobmccarlie382

2 жыл бұрын

@@Bonsaify Thank you. Much appreciated. 😀

Do you do anything to reestablish the mycorrhizae?

@Bonsaify

2 жыл бұрын

Interesting question - we actually find that Myco and root aphids do not often co-exist. E.g. by establishing a good myco colony you may be able to prevent root aphids. A good topic for another video and some experimentation. I did not see any myco in this tree, and innocculating it would be a good idea!

Hi These buggers are so annoying I just discovered them on my pines Wondering if anyone tried the Tobacco treatment I heard it helps but not sure how it affects the root aphids

@Bonsaify

Жыл бұрын

Since many commercial insecticides are derivatives of nicotine, I'm sure it will have some effect, but I've never used it. Keep in mind that systemics are not much better than contact for root aphids.

@jazinzlaty4823

Жыл бұрын

@@Bonsaify thank you

Hi, what is your bonsai soil mixture?

@Bonsaify

2 жыл бұрын

For this tree it's 1:1:1 APL (Akadama-Pumice-Lava). In this case the pumice and akadama are premixed and from Japan, then I mixed it with domestic lava. For younger trees and stock I use 80% perlite and 20% coco coir.

is there any way to treat this without using insectisides?

@Bonsaify

2 жыл бұрын

Yes ! You can just use water to remove adelgid - it's very satisfying to do it this way because it cleans the branches! For Root aphids, make a solution of 2 tbsp horticultural soap to a gallon of water. Horticultural soap is the same as any soap, but using salts that are safe for plants. Then dunk the rootball for 10 minutes or so. Repeat after a couple weeks. The soap suffocates insects so technically it's an insecticide, but it's also chemically what you put all over yourself when you shower.

@mikeyswallow2162

2 жыл бұрын

@@Bonsaify fantastic, thanks so much, really enjoyed your videos, very well made!

Why not use a systemic ? Bonide makes a Granular systemic. It’s Easy to use , and works well. Should knock that out and lasts a long time.

@Bonsaify

2 жыл бұрын

For the adelgid a systemic works well, although it doesn't remove the residue of the insects. For the root aphids, systemics are no better generally than contact treatments because the chemicals are designed to be absorbed by the roots, then transported to and concentrated in the foliage and twigs. We have found that while a systemic works fine, it is only through direct contact in many cases in the soil that is actually killing the insects. Pockets that are not in direct contact with the treatment will have insects that remain alive because the chemical does not transport from one root out to other roots. Taking IPM principles into account, you should always use the least toxic method to treat infestations after assessing whether or not they need to be treated. In this case because contact killing is the primary method, problems caused by systemic treatment outweigh the benefits of their use. Treating adelgid on bonsai using water alone will normally give a better (aesthetically) result than using systemics. These are not hard and fast rules - you can use what you have available also, but in a production environment economizing and site impacts are important to account for - which gets me in the habits that I mention above.

@austinjk24

2 жыл бұрын

@@Bonsaify thanks for the information, it’s greatly appreciated!