Mildew Prevention and Treatment in Bonsai

Рет қаралды 7,100

15 күн бұрын

What to do when your bonsai is infected with mildew?
Mildew is a fungal infection which particularly affects hornbeam, rose-family members and oaks. In early summer leaves discolor, get brown spots and a white coating. As a result, photosynthetic efficiency drops and the tree just looks ugly.
What can you do in winter to protect against mildew, how do you manage bonsai in spring against mildew and what can you do in summer to treat mildew?

Пікірлер: 36

@desmondtan998 11 күн бұрын

Hi Jelle, could you do a video on the different types of bonsai and practical watering, soil and light requirements, as well as difficulty level? It will be so helpful.

@GrowingBonsai 10 күн бұрын

Great suggestion! Have you seen the bonsai for dummies video? It has some of these aspects covered!

@sueb1317 13 күн бұрын

Thank you Jelle - great info that I definitely will take advantage of. I've used sulfur alone with good success for spot treatments, but did not realize that buds are often infected long before the white discoloration appears.

@GrowingBonsai 10 күн бұрын

Yeahm it is tricky!

@treeaddict 13 күн бұрын

Another good video, thanks Jelle

@GrowingBonsai 10 күн бұрын

Gladly, happy that you liked it!

@DikaBonsai23 12 күн бұрын

Treatment in bonsai. Thanks your information very useful

@GrowingBonsai 10 күн бұрын

annoying stuff!

@marosbonsai 12 күн бұрын

Dealing with the same fungal issues regularly. Sometimes, pongam oil based products work, but it ain't silver bullet either. You got me with tiny scissors, I have to find ones. Cheers

@GrowingBonsai 10 күн бұрын

glad to be f help! Let me know if you find the silver solution!

@bonsaikastur 13 күн бұрын

I used classic Bordeaux mixture this winter. It seems to work for now.

@GrowingBonsai 10 күн бұрын

great to know!

@MelanieDesaulniers 13 күн бұрын

Hi Jelle. Very informative. I have wiped the leaves of my year-old herry seedling with alcohol. Seems to have worked thus far. Can you provide details on that neat harvest scissors please?

@GrowingBonsai 10 күн бұрын

Sounds great! These just came from a local garden centre. I am not sure they are of any known brand or something :(

@drfreddave9020 13 күн бұрын

Just hate mildew and rust. Grew many oaks last year and they all got mildew. Didn't defoliate but sprayed with rose clear. It normally works well, but didn't help. Eventually washed the leaves with a 0.2% of bleach! It did work and the oaks are growing ok this year. I am following you now in removing infected leaves as soon as show fungal infection.

@GrowingBonsai 10 күн бұрын

annoying fungals!

@kreszenziajusupoglu8298 6 күн бұрын

Funny, you talk about Fungus and I have it on my hazelnut. 😂 Do you have a kind of first-aid-kit with for example the sulfur and other treatment for your bonsai at home? If so, this would be a nive video topic. At least for me. Everyone wants to sell you everything. What would u consider important to have a home? Like a top 5 treatment available 😁🤪

@Yurup 13 күн бұрын

There are also capsules you can put in the ground which help the tree be resistant to mildew. It really helped one of my moms plant but I don't know if it just washes out of the ground with bonsai soil

@GrowingBonsai 13 күн бұрын

I am guessing you are in the USA? Systemic fungicides are not readily available here.

@Yurup 13 күн бұрын

@@GrowingBonsai Dutch, you can get them from the 'welkoop'

@aetheno 13 күн бұрын

Thanks Jelle, very helpful. Presumably you meant European Hornbeam when you said European Hawthorn?

@GrowingBonsai 10 күн бұрын

Yeah... SOrry.

@DavidAllan-zd8wm 12 күн бұрын

Have you never considered using the 'milk spray' method for preventing powdery mildew? I've never tried it myself as the mildew usually appears so late in the season that it doesn't unduly affect the health of my trees.

@kreszenziajusupoglu8298 12 күн бұрын

I tried the Milk spray last year on my oak around May and it work well. This year, nothing

@GrowingBonsai 10 күн бұрын

have considered it, but it SMELLS!

@brucejeffcott1104 13 күн бұрын

Great video! I have a question... What about brown spot. I believe it is a fungus as well? But affects leaves?

@GrowingBonsai 10 күн бұрын

Not sure what you mean with brown spot?

@brucejeffcott1104 10 күн бұрын

@@GrowingBonsai or leaf spot it's called. But after reading its caused by many different bacterial or fungal issues

@brucedeacon28 12 күн бұрын

👍👌🙂

@GrowingBonsai 10 күн бұрын

:) Thx my friend

@GrowingBonsai 10 күн бұрын

@gabronijabroni 13 күн бұрын

Do you keep pigeons? I hear pigeons. I love pigeons.

@GrowingBonsai 10 күн бұрын

We have a resident pigeon population. They wreck trees and clean out beanplantings.

@acer_p_bonsai 13 күн бұрын

Great Video Jelle. I'm going to give the horticultural sulfur a try. I prefer to use the more natural treatments vs. harsh chemical fungicides/pesticides...I don't want to grow a third arm. 🪴🍁😆

@pansepot1490 13 күн бұрын

Sulphur is natural. It’s even allowed in protocols for organic growers. Just take care to wear a mask when spraying. Even if it’s among the elements our body needs too much of a good thing can cause problems, especially when inhaling is not how to get it.

@GrowingBonsai 10 күн бұрын