Monterey Florel Brand Growth Regulator

$26.48 - $81.52

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{ $26.48 { $24.72 $33.95 $31.94 $81.52 $79.61
  Size/Description Price/Ea. Qty
Monterey Florel Brand Growth Regulator pint (16 oz)

Buy 1: $26.48 each

Buy 2 or more: $24.72 each

Monterey Florel Brand Growth Regulator Quart quart (32 oz)

Buy 1: $33.95 each

Buy 2 or more: $31.94 each

Monterey Florel Brand Growth Regulator - Gallon gallon (128 oz)

Buy 1: $81.52 each

Buy 2 or more: $79.61 each

Total Price: $0.00

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For large order quotes, please call us at 1-866-581-7378.

Monterey Florel Brand Growth Regulator

Florel Growth Regulator is used to reduce or eliminate undesirable fruit development on many ornamental trees and shrubs. Florel Growth Regulator can also be used to reduce the plant height of potted daffodils, increase lateral branching in ornamentals, remove mistletoe from certain trees, and to induce flowering of ornamental bromeliads.

What is Florel brand Growth Regulator?

A contact growth regulator based on the chemical ethephon. It is widely used in agriculture as a ripening agent.

How does it work?

Florel brand Growth Regulator breaks down into ethylene, a naturally occurring compound, in the plant. When a plant is under stress it produces ethylene. If the plant is in bloom at the time of excess ethylene production, the first symptom is blossom abortion. This is how Florel brand Growth Regulator works. It causes the plant to abort its blossoms.

When should I use Florel brand Growth Regulator on Sweet Gum trees?

The best time for application on any flowering plant is the mid to full bloom stage. The ideal time for spraying sweet gum is right after the tiny balls form below the catkin. After application, these tiny balls simply dry up and fall off.

Can I spray after fruit has set?


How much water do I use on each tree?

The tree needs to be sprayed to wet - excessive runoff is a waste of material. The average size tree will require 5 to 20 gallons of spray for treatment.

How many applications do I make with Florel brand Growth Regulator?

Only one!

Does Florel brand Growth Regulator have any odor?

Florel brand Growth Regulator is an odorless clear liquid.

Is it necessary to cover the lawn or shrubs growing under the tree?

No. If concerned about drift, simply rinse off plants with water.

Should I use a surfactant?

On evergreen trees (olives, citrus, etc.) a surfactant is not recommended. On deciduous trees a surfactant may be used.

Does Florel brand Growth Regulator kill bees?

Florel brand Growth Regulator has no insecticidal properties.

How do I mix Florel brand Growth Regulator?

Mix only enough solution to supply your morning spray needs. Once mixed with water, Florel brand Growth Regulator will start to hydrolyze. Then mix the amount you will need for afternoon spraying just before use. If the pH of the spray solution rises above pH 5 it will be ineffective.

Will Florel brand Growth Regulator cause corrosion to my equipment?

No, under normal conditions Florel brand Growth Regulator will not cause corrosion. It cleans out easily with water. The pH is 2.5 when mixed with water so it is very acidic. Therefore, do not leave in a spray tank overnight. Spray out all the material that has been mixed.

Should I be concerned about drift when using Florel brand Growth Regulator?

Yes. Do not allow the material to dry on shiny, painted surfaces such as car and trucks. Florel brand Growth Regulator does not have any effect on sidewalks, house paint, etc.

Can I mix Florel brand Growth Regulator with insecticides, etc.?

Due to the acidity of the spray solution, mixing Florel brand Growth Regulator with other materials, such as insecticide products is not recommended.

Are there adverse effects on the leaves when Florel brand Growth Regulator is sprayed?

No. Florel brand Growth Regulator works on contact only, it does not enter the tree like other growth regulators. Therefore, it will not have adverse growth effects and there is no burn (phytotoxicity) to the new leaf growth.


    Florel brand Growth Regulator:

  • 3 oz. per 1 gallon of water
  • 1 quart per 10 gallons
  • 2.5 gallons per 100 gallons

What temperature should it be when I spray Florel brand Growth Regulator?

This product works best when the daytime temperature is between 60-95 degrees F.

If the tree is stressed for any reason can I treat it anyway?

No. If the tree is already under stress Florel brand Growth Regulator may increase the stress on the tree.

Can I use Florel brand Growth Regulator on other trees to control nuisance fruit?

Florel brand Growth Regulator is registered to control nuisance fruit in ornamental trees and shrubs such as: Apple, Buckeye Crabapple, Carob, Cottonwood, Elm, Flowering pear, Horsechestnut, Maple, Oak, Olive, Pine, Sour orange and Sycamore trees. Embark and Olive Stop are only used on olive trees.

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04/04/2015 Gigi from Brooklyn, Ny

QHow much Monterey Florel Growth Regulator should I order for a very large female Gingko tree?
Can we apply this ourselves to a very large street tree? It is a huge nuisance in the fall.

AMonterey Florel Growth Regulator is not specifically labeled for gingko trees. We would recommend speaking to the manufacturer, Monterey Lawn and Garden. Their phone number is 559-499-2100.

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04/27/2013 Richard from Bakersfield, Ca.

QWhat would be the best way to use Florel Growth Inhibitor on a Raywood Ash tree?

AIt does not look like Florel is labeled for use on a Raywood Ash Tree. We recommend you contact the manufacturer Monterey directly for more information by calling 559-499-2100.

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04/20/2016 Jaime from Brentwood, Ca

QDoes Monterey Florel Brand Growth Regulator work on olive trees that were supposed to be fruitless and how much in a spray bottle to use?


Yes, Florel Growth Regulator is labeled for use on olive trees. You will use 3 fl. oz. per gallon of water.

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02/09/2016 Mark from Fort Worth, Tx

QFor how many hours does ambient temperature need to remain above 65 degrees after applying Monterey Florel Brand Growth Regulator?
For leafy mistletoe control, Monterey Florel Brand Growth Regulator says to apply when above 65 degrees.


Monterey Florel Brand Growth Regulator should be applied when the constant temperature remains above 65 degrees. This product is only effective during the plant growth. The product should also NOT be applied when temperatures exceed 95 degrees, when rain is expected within 24 hours, during a drought, other other stressful situations including tree/shrub disease or insect damage per the product label.

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