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  #1  
Old 02-03-2012, 09:28 PM
markinthegarden markinthegarden is offline
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How much Superthrive to use on my orchids?
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I also use it primarily in a soak during repotting (1 or 2 drops/gal with 1/4 strength fertilizer solution) or when trying to coax those bare root imported species or hopeless-looking, root-rotted plants back into growth - my "go juice" is 1/4 strength fert + 4-5 drops ST + 1 crushed aspirin tablet per gal. (as a soak and then applied as a spray to plants lying on a bed of moss).
I will also use ST in VERY dilute amounts (1 drop/5 gal) in late winter (Spring for plants here in FL).
Someone once described ST as "crack for orchids". Use it sparingly.
Bruce, why the asprin? I have heard of using asprin on plants before, but cannot recall what benefit it has.

Superthrive works well on orchids and any other plant that I have used it on. The manufacturer suggests one drop per gallon for general watering and one cap (4 oz bottle cap) per gallon for treatment of ill health.

One thing the manufacturer advised that I have found true is to only mix up the amount that you are going to use because it does not keep after it has been mixed with water.
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Old 02-03-2012, 09:47 PM
BruceP BruceP is offline
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How much Superthrive to use on my orchids? Male
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Bruce, why the asprin? I have heard of using asprin on plants before, but cannot recall what benefit it has.
Short answer: Aspirin will help trigger a stress response in plants that boosts their own natural defenses against bacteria, fungi and viruses (Google 'Systemic Acquired Resistance' or 'SAR aspirin'.) I also believe from my own experience that the stress response kick-starts root growth, but I don't have a citation handy.

I forgot to mention that I also add a couple of teaspoons of Physan or similar.
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  #3  
Old 02-04-2012, 03:36 AM
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billc billc is offline
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Short answer: Aspirin will help trigger a stress response in plants that boosts their own natural defenses against bacteria, fungi and viruses (Google 'Systemic Acquired Resistance' or 'SAR aspirin'.) I also believe from my own experience that the stress response kick-starts root growth, but I don't have a citation handy..
That's a new twist on "take 2 aspirin and call me in the morning"

Bill
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Old 03-15-2012, 05:25 PM
Tsuchibuta Tsuchibuta is offline
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Originally Posted by BruceP View Post
Short answer: Aspirin will help trigger a stress response in plants that boosts their own natural defenses against bacteria, fungi and viruses (Google 'Systemic Acquired Resistance' or 'SAR aspirin'.) I also believe from my own experience that the stress response kick-starts root growth, but I don't have a citation handy.

I forgot to mention that I also add a couple of teaspoons of Physan or similar.

Umm... very close - The actual reason is that aspirin is acetylsalicylic acid - and since it contains salicylic acid (Salicylic acid (SA) is a phenolic phytohormone and is found in plants with roles in plant growth and development, photosynthesis, transpiration, ion uptake and transport. SA also induces specific changes in leaf anatomy and chloroplast structure. SA is involved in endogenous signaling, mediating in plant defense against pathogens.[3] It plays a role in the resistance to pathogens by inducing the production of pathogenesis-related proteins.[4] It is involved in the systemic acquired resistance (SAR) in which a pathogenic attack on one part of the plant induces resistance in other parts. The signal can also move to nearby plants by salicyclic acid being converted to the volatile ester, methyl salicylate.[5]
[edit] ) thank you wikipedia.. it was easier than me typing it all up myself... sorry I'm lazy.

Side note, willow bark actually contains salicylic acid as well (why homeiopathic medicine uses it to treat headaches) but also works as a rooting hormone. Just put a branch of willow in water and watch... If you add other plants to the water it has similar affect due to the leaching.
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