Bonsai Study Group Forum

General Category => General Bonsai Discussion => Topic started by: augustine on January 31, 2013, 08:41 PM

Title: Use of Lime Sulphur and Dilution Rates
Post by: augustine on January 31, 2013, 08:41 PM
All.

I attended a Pine seminar given by Julian Adams and he stressed the importance of taking action to avoid insect and fungal problems. Mr. Adams lives on the East Coast like me and we have lots of humidity. He suggested the use of Lime Sulphur as part of the regimen.

Could you please help?

I understand that Lime Sulphur should be used in winter while trees are dormant. Can I spray now? If so, what is the proper dilution rate? (On Bonsai4Me the article stated a 1:25 or 1:50 rate.) My product is 28% Lime Sulphur.

Is Lime Sulphur used during the growing season? If so, how and when and on what species (besides pines)?

We really have to address the fungal issues in this part of the country.

Thank you.

Best,

Augustine
Central, MD - 7a


Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: John Kirby on February 01, 2013, 10:07 AM
OK, for pines and Junipers you can easil use the 1:25 or :50 dilution as an overwintering spray. Wssentially you are talking anout 1/4 cup per gallon of spray mixture. The dilution range is huge, so precision is less of a worry than with many others with cytotoxicity or accute operator danger (nicotinoids, etc). Always where an appropriate mask, gloves and long slealeved shirt.

Make up and ensure wellmixed, water your trees well, spray the foliage, beanches, trunk, etc. after all trees are sprayed, again water your trees well, try not to wash the spray off.

You should not spray frozen trees or those trees warmer than 85 F.

John
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: mcpesq817 on February 01, 2013, 10:18 AM
Augustine, make sure that your lime sulfur is not part of a dormant oil mix.  I understand that there can be a concern that the oil may clog conifer pores.
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: augustine on February 01, 2013, 02:58 PM
John and Mcpesq,

Thank you very much. The product lists only lime sulphur on the label.

Best,

Augustine
Central, MD - 7a
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: Chrisl on February 02, 2013, 11:03 AM
OK, for pines and Junipers you can easil use the 1:25 or :50 dilution as an overwintering spray. Wssentially you are talking anout 1/4 cup per gallon of spray mixture. The dilution range is huge, so precision is less of a worry than with many others with cytotoxicity or accute operator danger (nicotinoids, etc). Always where an appropriate mask, gloves and long slealeved shirt.

Make up and ensure wellmixed, water your trees well, spray the foliage, beanches, trunk, etc. after all trees are sprayed, again water your trees well, try not to wash the spray off.

You should not spray frozen trees or those trees warmer than 85 F.

John

John, I read to apply when I put the trees away, which I did.  And then again in Jan/Feb.  But they are frozen at this point.  So don't repeat the spray till they thaw out?
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: John Kirby on February 03, 2013, 09:41 AM
Don't spray frozen tree, when we get those warm ups, it safe to spray.
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: Chrisl on February 03, 2013, 11:57 AM
Gotcha.  Thanks for the information John!
Title: Re: Use of Lime Sulphur and Dilution Rates
Post by: Don Dunn on February 17, 2013, 09:37 PM
I found this and cut it off  as  soon as I found it. Does any one kow the name of this  fugus infection? Should I spray with Lime Sulfer? These came from two of my  ground planted Italian Stone Pines.  I have never seen this on any of my tree before.