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Monterey Horticultural Oil - Questions & Answers

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Monterey Horticultural Oil
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Displaying 21 to 33 (of 33 questions)
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  • Asked by Jeff from Indian Land, Sc
    04/05/2024
    Q
    When to spray with Monterey Horticultural Oil on maple tree?
    Should you spray the maple tree for gloomy scale when new leaves are beginning to flush in early spring?
    A
    Monterey Horticultural Oil is applied as needed when pests are present.  Applications should begin at the first sign of infestation.

    To determine the best time to apply Monterey Horticultural Oil in your area, we would advise speaking to a master gardener through your local extension office 
     

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  • Asked by Jayn from Roseburg Or
    11/25/2021
    Q
    How often and how many times a year can Monterey Horticultural Oil and Monterey Liqui-Cop be applied?
    I was advised to spray 3 times per year: Thanksgiving, Christmas and Valentines Day. Is this correct?
    A

    Since Monterey Horticultural Oil is a contact kill only and does not leave a residual, it can be applied as needed when target pests are active and present with no maximum number of applications. We would recommend not applying more than once per day as needed to avoid plant injury.

    Monterey Liqui-Cop does have retreatment intervals and maximum number of applications per year. Please refer to the product label for your specific treatment information. 
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  • Asked by Matan from Va
    10/29/2021
    Q
    Is Monterey Horticultural Oil safe for edibles (lemon tree) with rust and red mites?
    With the active ingredient petroleum solvent 80%, how is this safe for edibles?
    A

    Monterey Horticultural Oil is labeled for use on citrus trees. The label states, "Oils applied after October may increase cold damage to trees." 

    For specific questions regarding the formulation, active ingredients or health risks when used on edibles, we would recommend contacting the manufacturer direclty. Monterey Lawn and Garden can be reached by through their website here. 

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  • Asked by Lt70 from Saint Augustine, Florida
    10/21/2021
    Q
    Can Monterey Horticultural Oil remove sooty mold scale for my sylvester palms?
    A

    Monterey Horticultural Oil its not labeled specifically for sooty mold, but according to NC Extension article: "If one of the horticultural oils is used for control, it also has the advantage of helping to loosen sooty molds from the plant surface. This hastens the weathering away of the sooty molds."  it will help with any insects on the plant.

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  • Asked by Mary from Mooers Forks, Ny 12959
    08/29/2021
    Q
    I have a bottle of Monterey Horticultural Oil that is 10 years old with concentrate still in the bottle, what is the best way to dispose of this?
    A

    It is suggested to contact your local sanitation department for details/instructions on product disposal in your area per the product label. 

     

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    0 of 1 people found this answer helpful.
  • Asked by John from Carson City, Nevada
    07/21/2021
    Q
    Hose Sprayer: which direction turns the Neem Oil on
    The sprayer that is attached to the end of a garden hose. There are two controls. One to turn the water on and off, and a second that turns the Neem Oil feed on and off. Which direction is "On" for the Neem Oil feed? (pointed up (12 O'Clock), or pointed sideways (at the 9 O'Clock position)?
    A
    If you are referring to the Monterey 70% Neem Oil RTS, then you can view the full instructions on page 2 of the product label here. You will connect the bottle to the hose, turn on the water, remove the pin, and then turn on the product flow and water flow. The red product valve will rotate toward you so it's more flat to use the container (you cannot turn it if the pin has not been removed).
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  • Asked by Terri from Tahuya, Wa
    06/28/2021
    Q
    Explain rose bush application for pests, want to use a pump spray bottle with Monterey Horticultural Oil
    A

    For a rose application, the rate of Monterey Horticultural Oil is 2.5 to 5 tablespoons per gallon of water spraying the rose until it is wet but not dripping. You will reapply as needed. Please refer to the product label for more information. 

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  • Asked by Jennifer from Virginia
    06/11/2021
    Q
    Can you spray Monterey Horticultural Oil on house plants and succulents without hurting them?
    A

    Monterey Horticultural Oil is not specifically labeled to treat succulent plants and is only labeled for outdoor plants.  Bonide Insecticidal Soap RTU would be a better option to use.

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  • Asked by Juan from Laguna Niguel
    05/18/2021
    Q
    Can Monterey Horticultural Oil be used to treat root aphids?
    A

    For root aphids, we would suggest using Monterey Horticultural Oil as a foliar spray application to the leaves and stems of the roses and using Dominon 2L as a systemic application to the root zone. Dominon 2L is should be applied at the rate of 0.2 oz per inch of trunk diameter for trees or per foot of shrub height for bushes. This is the most effective treatment for year round control of aphids. Please review our article on Aphid Control for more information on treating this pest. ?

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    0 of 1 people found this answer helpful.
  • Asked by Patrick from Ontario Oregon
    05/15/2021
    Q
    Is there a chemical I can spray on my fruit trees that I can use in my thermal fogger? Can I use Monterey Horticultural Oil?
    A

    Monterey Horticultural Oil cannot be used in a fogger.  Essentria All Purpose may be a better product for your needs. It can be used in a fogger or sprayer and it can be used around edibles. Please refer to product label to make sure it is labeled for your target pest. 


     

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  • Asked by Stanislaw from Port Huron, Mi
    01/01/2021
    Q
    Can I mix Monterey Horticultural Oil with Admire Insecticide?
    A

    Bayer Admire Pro Systemic Protectant can be tank mixed with an organosilicone-based spray adjuvant for applications targeting aphids and whiteflies for better control.

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  • Asked by Ben from Walker Louisiana
    02/08/2020
    Q
    Will Monterey Horticultural Oil kill powdery mildew on citrus?
    A

    Monterey Horticultural Oil is an insectidie only, it would but used to treat fungus like powdery mildew.  Ultra-Pure Oil Horticultural Insecticide, Miticide and Fungicide would be a better option.

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    0 of 3 people found this answer helpful.
  • Asked by Carrie from Inverness, Ca
    01/21/2016
    Q
    Is it normal for Monterey Horticultural Oil to be white in color?
    It had a very strong chemical odor, surprising for mineral oil. The safety precautions are extensive for an organic non-toxic product. What else is in it?
    A

    Yes, the Monterey Horticultural Oil is white. The active ingredient is 80% mineral oil, and it contains petroleum distillates. If you have any specific questions regarding the formulation, we would recommend contacting the manufacturer directly. Their phone number is 559-499-2100.

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    0 of 8 people found this answer helpful.
Displaying 21 to 33 (of 33 questions)