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[
Introduction to
Plant Propagation
from Cuttings ]
Find ANY thing you want to know, see: [ SITE
MAP ]
[Dry Dip Rooting Powders]
[Dry Dip Demonstration]
[Rooting Solutions]
[Plant Selection]
[Plant Care]
[ROSES]
Special Techniques
Use Rhizopon AA dry powders
and solutions for air layering
You can use Rhizopon AA dry powder rooting hormones to treat air layers. Apply using a
clean soft brush using Rhizopon AA #2 or #3. If using cocoa fibers make sure the
processing salts have been removed. As an alternate you can use Rhizopon AA Water Soluble
Tablet. Soak the moss or cocoa fibers in 3-10 tablets per liter water. Wound the stem of
the cane. Apply the fiber. Cover the fibers with aluminum foil to protect against drying
out.
Growth
Stimulation for slow to root cuttings
 Certain
species are slow and irregular in rooting. To stimulate the rooting a few weeks after
sticking an extra treatment with a Rhizopon AA Water Soluble Tablet solution could be very
successful. If roots of cuttings have been killed by root fungus then periodically spray
solution on leaves and stems until drips down into media. Use a solution with Rhizopon AA
Water Soluble Tablets (at 1-3 tablets per liter of water)
or Hortus IBA Water Soluble Salts (at .2-.5 gm per liter water). Spray the cuttings or
drench the soil with the solution. One liter can cover about ten to twenty square feet of
growing area.
Root
difficult cuttings
 Some
plant cuttings root with difficulty. Lacking success, some growers erroneously increase
the concentration of rooting hormones. An increased concentration may inhibit root
promotion. Try a low concentration of Rhizopon Water Soluble Tablet
and Hortus IBA Water Soluble Saltssolution with an
increased basal end immersion time. Increased time allows the cutting to absorb the active
ingredients. A low concentration is also economical.
Use the Immerse Method by immersing the basal end of the cutting approximately one inch
into the solution for four to twelve hours. Use Rhizopon AA
Water Soluble Tablets (at 1-3 tablets per liter of water)
or Hortus IBA Water Soluble Salts (at .2-.5 gm per liter water).
Avoid using herbicides
when rooting cuttings
Drs. Gilliam, Eakes, and Olive at Auburn University studied how herbicide use during
propagation affects root initiation and development. Weed control is a serious problem
during the rooting of stem cuttings of woody nursery crops. Their studies demonstrate the
potential suppression of root development when granular dinitroaniline herbicides are used
during stem cutting propagation. Tests evaluated azalea and gardenia propagated using
Rhizopon AA's and Hortus IBA Water Soluble Salts active ingredient. Compared with controls, cuttings tested with some
commercial herbicides exhibited suppressed root development, reduced root quality, root
length, and lower dry weight. Caution! Propagators should conduct small scale tests
evaluating specific herbicides and depth of sticking cuttings of individual species to be
propagated prior to treating an entire crop.
Use of
fertilizers and fungicides when rooting cuttings
- Rhizopon AA and Hortus IBA Water Soluble Salts products do not contain fertilizers or fungicides. Apply these materials
based upon plant requirements.
- When rooting cuttings do not fertilize until after root initiation. Fertilizer salts may
dehydrate the cuttings.
- When transplanting you can apply Rhizopon AA Water Soluble Tablets
and Hortus IBA Water Soluble Salts with fertilizer at
the same time.
- Fungicides may inhibit root formation by stressing plant tissue and slowing rooting and
plant growth. Use fungicides only as required
Mixing Rhizopon
and Hortus IBA Water Soluble with
other growing agents
 Tank mixing pesticides together is sometimes desirable [for pest
control, growth regulation, fertilization, fungus control, etc.]...Legally, products can
be mixed if the label specifies it, or if neither label prohibits mixing and both labels
permit the intended use. Before mixing [Rhizopon AA and
Hortus IBA Water Soluble Salts with other] products for the first
time, a small amount of each chemical should be combined to determine if they are
physically compatible...To test a mixture, obtain a clear glass jar with a lid. [Add to
half level the] carrier (usually water) and add the chemicals in the proper proportions as
it would in the actual tank mixture. If the label does not specify the order to add the
chemicals, add in the following order: 1) wettable powders, 2) flowables, 3) water
solubles [including Rhizopon AA and Hortus IBA Water
Soluble Salts], 4) sufficants, and 5) emulsifiable concentrates.
Thoroughly, shake the jar and let stand for thirty minutes. If the mixture immediately
separates or forms clumps, sludge, or solids then the mixture is not compatible. If slight
separation occurs which can be readily re-mixed, the combination could be used if the
[tank] has a good agitation system.
Before mixing on a large area, [treat] several [cuttings or] plants first, and monitor
their appearance for at least one week to determine if the mixture is photo-toxic-toxic or
harmful to plants. Sometimes mixing several chemicals will react differently even if safe
when used alone. Remember to read the labels completely and carefully. Keep good records
and retest when using new formulations or products from different manufacturers of the
same active ingredient.
(This information has been edited from data courtesy of Mr. Scott Clark at the New
York State Cornell Cooperative Extension Service, Riverhead NY)
Special Techniques
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