Bonsai Study Group Forum

Species Specific => Trident Maple Bonsai Discussion => Topic started by: BonsaiEngineer1493 on June 17, 2014, 08:08 PM

Title: Leaf Problem
Post by: BonsaiEngineer1493 on June 17, 2014, 08:08 PM
I need your help guys! a few leaves are wilting and discoloring, which is displayed in the attached photos. I am being cautious with my water and fertilizing. The new leaves are being affected too. Recently I had a problem with fungus gnats or fruit flies around the tree and in the soil. I treated them by filling containers with vinegar and dish soap and placing them near the trees. If you guys are certain you know what this is can you please suggest a treatment.

Thank you,
Nick
Title: Re: Leaf Problem
Post by: akeppler on June 18, 2014, 06:31 PM
I get this every year. It is a fungus and it is caused by moisture on the leaves during the night. Water during the day and make sure your plant gets some sun before nightfall to dry all the way out on the foliage. Remove the affected leaves and all the new ones should come out good as new. Spray plant with a fungicide, the one by Bayer is good. As for the gnats I can't help you there, maybe you could train some black widows?
Title: Re: Leaf Problem
Post by: Judy on June 18, 2014, 06:45 PM
I use daconil.  Fungus gnats are attracted to moisture and fertilizer if you use solids.  I have them, and they don't hurt anything, but they can point to overwatering sometimes.
Title: Re: Leaf Problem
Post by: BonsaiEngineer1493 on June 18, 2014, 07:10 PM
I get this every year. It is a fungus and it is caused by moisture on the leaves during the night. Water during the day and make sure your plant gets some sun before nightfall to dry all the way out on the foliage. Remove the affected leaves and all the new ones should come out good as new. Spray plant with a fungicide, the one by Bayer is good. As for the gnats I can't help you there, maybe you could train some black widows?

Which exact one from Bayer?
Title: Re: Leaf Problem
Post by: BonsaiEngineer1493 on June 18, 2014, 09:20 PM
I use daconil.  Fungus gnats are attracted to moisture and fertilizer if you use solids.  I have them, and they don't hurt anything, but they can point to overwatering sometimes.

Judy, how many teaspoons of daconil do you use per gallon of water for a trident maple?
Title: Re: Leaf Problem
Post by: Judy on June 18, 2014, 09:53 PM
I don't remember, but I follow the directions on the concentrate bottle.
Title: Re: Leaf Problem
Post by: akeppler on June 19, 2014, 12:47 AM
The last bottle I bought was daconil also.

 http://www.domyownpestcontrol.com/garden-tech-daconil-fungicide-ready-to-use-p-8931.html?zmam=70093104&zmas=1&zmac=2&zmap=8931&gclid=CjkKEQjw8YSdBRChhPXJvPvMztABEiQAkn893taXe3wLz6e10cXHizjcpk0G41vX3WH-28zmXFKr46zw_wcB (http://www.domyownpestcontrol.com/garden-tech-daconil-fungicide-ready-to-use-p-8931.html?zmam=70093104&zmas=1&zmac=2&zmap=8931&gclid=CjkKEQjw8YSdBRChhPXJvPvMztABEiQAkn893taXe3wLz6e10cXHizjcpk0G41vX3WH-28zmXFKr46zw_wcB)