Ask A Pro: 866-581-7378 Mon-Fri 9am-5pm ET Contact Us
Fast Free Shipping On Your Entire Order*
DoMyOwn - Do It Yourself Pest Control
  • Use "Spacebar" or "Enter" to expand the My Account navigation menu.
  • Use Down or Tab key to select next menu item.
  • Use Up or Shift+Tab keys to select the previous item.
  • Use Enter/Space key to visit the menu item.
  • Use Esc key to leave the submenu.
  • Use Left/Right arrow keys to allow users to navigate within the navigation links.
  • Use Down arrow key to expand the submenu and up/down arrow keys to navigate within the submenu.
  • Use Enter/Space key to select the menu/submenu items.
  • Use Esc key to leave the submenu.

New Items Added! Save Up to 30% on Select Lawn & Pest Control Products- Shop Now »

Monterey Horticultural Oil - Questions & Answers

Learn more about Monterey Horticultural Oil

Ask a Question
Monterey Horticultural Oil
$23.83

Free Shipping

Info / Buy Now

Displaying 1 to 20 (of 29 questions)
Sort:
  • Asked by Abelardo from Fresno, Ca
    11/14/2016
    Q
    Can I mix Monterey Horticultural Oil with Liqui-Cop?
    A

    Yes, you can mix Liqui Crop and Monterey Horticultural Oil together in the same tank. Be sure to do a tank test first to ensure there is no clumping between the two products.

    Was this answer helpful to you?   Yes No
    31 of 38 people found this answer helpful.
  • Asked by Kerry from Asotin, Wa
    03/16/2019
    Q
    How often should I spray the trees with Monterey Horticultural Oil? It says as needed until harvest.
    A

    Monterey Horticultural Oil is a contact kill only so would only be used when target pests are present for you to make contact with.  That is why it is applied as needed and no set restriction between applications nor the max number of applications.  We would recommend not applying more than once per day as needed to avoid plant injury.

    Was this answer helpful to you?   Yes No
    21 of 22 people found this answer helpful.
  • Asked by Nevin from Bonners Ferry, Id
    04/21/2018
    Q
    Can I spray Monterey Horticultural Oil on apricot trees?
    A

    Monterey Horticultural Oil is labeled to be used on apricot trees for aphids, fruit tree leaf roller, mites, scales, and whiteflies.

    Was this answer helpful to you?   Yes No
    10 of 12 people found this answer helpful.
  • Asked by Judy from Lompoc, California
    03/19/2014
    Q
    Can I use Monterey Horticultural Oil in an Ortho Dial end sprayer and if I can how much do I use?
    What do i set the dial at. I want to spray Roses for pests and diseases.
    A
    The Monterey Horticultural Oil should be able to be used in most spray equipment including hose end sprayers. We do not carry the Ortho Dial sprayer so we cannot tell you what setting you should put it on other than whatever will give you the correct dilution ratio the label suggest you use for the diease you are trying to prevent against or treat for. Please check the Product Label for specific usasge instructions. 
    Was this answer helpful to you?   Yes No
    6 of 12 people found this answer helpful.
  • Asked by Darren from Newark, Nj
    06/26/2013
    Q
    Can the Monterey Horticultural Oil be used in a thermal fogger?
    I'm trying to find a deodorized oil base to mix my pesticide with to use with my thermal fogger. I was told never to use any water based chemicals in a thermal fogger. Any suggestions?
    A
    The Monterey Horticultural Oil cannot be used in a fogger according to the product label. You may want to check with the manufacturer of the pesticide you are going to use to see if what product they recommend mixing it with, or if you can use the oil based pesticide undiluted in your thermal fogger. You are definitely correct that you cant use water based chemicals in a thermal fogger as this would be similar to pouring water in the gas tank of your car. Please let us know if you have any other questions and we apologize we couldn't offer more information for your needs.
    Was this answer helpful to you?   Yes No
    5 of 5 people found this answer helpful.
  • Asked by Sharon from Strrerryfarm@comcast.net
    12/05/2016
    Q
    Can I mix a fungicide with Monterey Horticultural Oil for better results?
    A

    Yes, Monterey Horticultural Oil can be mixed with a fungicide.

    Was this answer helpful to you?   Yes No
    5 of 6 people found this answer helpful.
  • Asked by Beverly from Three Bridges, Nj
    06/25/2015
    Q
    What dormant oil product can I safely use on conifers and dwarf conifers for dormant spray of scale
    I have some scale on pines (mugo, leucodermis, nigra, cembra). What dormant oil product do you recommend that may be applied to these pines in dormant season. Some labels on products omit pines.
    A
    We would recommend using Monterey Horticultural Oil. It is labeled for scale on various types of trees, including conifers. You will use 2.5 - 5.0 tablespoons per gallon of water. Please let us know if you have any additional questions.
    Was this answer helpful to you?   Yes No
    4 of 6 people found this answer helpful.
  • Asked by Christine from Cleveland, Nc
    03/09/2017
    Q
    Can Monterey Horticultural Oil be used on peach, nectarine, and plum trees?
    A

    Yes, per the product label, Monterey Horticultural Oil can be used on peach, nectarine and plum trees. 

    Was this answer helpful to you?   Yes No
    4 of 4 people found this answer helpful.
  • Asked by Pete from Cape Coral Florida
    06/24/2018
    Q
    What is the best Horticultural Oil to remove Cyclad Scale from my Sago Palms?
    A

    In order to completely eradicate cyclad scale, you will need to treat systemically with around the roots with a product that contains Dinotefuran such as Zylam Liquid Systemic Insecticide, and then treat the foliage with the Monterey Horticultural Oil. The older the scale is, the harder they are to control. Repeat treatments usually are needed.

    Was this answer helpful to you?   Yes No
    4 of 4 people found this answer helpful.
  • Asked by Len from Santa Rosa, Ca
    07/31/2018
    Q
    Can I mix Monterey Garden Insect Spray with Monterey Horticultural Oil?
    A

     

    The Monterey Garden Insect Spray does not specifically state on its product labelwhether it can or can't be mixed with other insecticides that allow for usage in the same treatment areas. While we do not see any harm in mixing those two particular organic insecticides together to apply at the same time, we suggest doing a tank mix test first to make sure the products will be compatible and not clump, discolor or change quality in the tank before spraying.

    Was this answer helpful to you?   Yes No
    4 of 5 people found this answer helpful.
  • Asked by Wilfredo from Caguas, Puerto Rico
    12/17/2018
    Q
    I can use Monterey Horticultural Oil over fruits?
    I have a tree with fruits. I am not sure if I can eat the fruits after I used the oil.
    A

    There are certian fruits that Monterey Horticultural Oil can safely be used on.  Please refer to the product label for a specific listing of those fruits.

    Was this answer helpful to you?   Yes No
    3 of 8 people found this answer helpful.
  • Asked by James
    03/16/2014
    Q
    I want the 1 gallon size of Monterey Horticultural Oil.
    A
    We carry the Monterey Horticultural Oil in a one gallon size container and offer free shipping. Please contact us at 866.581.7378 to place your order.
    Was this answer helpful to you?   Yes No
    2 of 3 people found this answer helpful.
  • Asked by James from Waukesha
    03/25/2021
    Q
    Is Monterey Horticultural Oil a dormant spray for apple trees?
    A

    Monterey Horticultural Oil is a dormant spray that may be used to treat apples as long as you are following the instructions on the product label.

    Was this answer helpful to you?   Yes No
    2 of 2 people found this answer helpful.
  • Asked by Cheryl from Leland, Nc
    08/27/2019
    Q
    Can Monterey Horticultural Oil be used on windmill palms?
    A

    Monterey Horticultural Oil does not break down all the ornamental plants it can be applied to but should have no issue on palms when applied as directed on the label.  You may also reach out to the manufacturer to confirm (559) 499-2100

    Was this answer helpful to you?   Yes No
    2 of 3 people found this answer helpful.
  • Asked by Ronald
    05/27/2018
    Q
    I sprayed Monterey Horticultural Oil on my raspberry bushes for mites and they came back in two days and the leaves were crispy and dying. What happened?
    A

    Monterey Horticultural Oil should not have any negative results if used as directed on the product label. We would recommend that you contact the manufacturer directly for further troubleshooting on what could be occuring with your plants that you treated.  You can reach Monterey at 559-499-2100.

    Was this answer helpful to you?   Yes No
    2 of 2 people found this answer helpful.
  • Asked by Brandon from Bartlett, Tn
    03/01/2017
    Q
    Can I use Monterey Horticultural Oil to kill white scale on my privet shrub?
    A

    Monterey Horticultural Oil can be applied to soft and armored scale on shrubs using a garden sprayer. Thoroughly cover the infested plant, making sure you completely reach leaf undersides, twigs and other parts of the plant infested with scales.Do not apply within 30 days of a sulfur application; avoid applications on drought-stressed plants, windy days and temperatures are below 32F or above 90F. Follow the product label for detailed application instructions. We advise that you test out the solution on an inconspicuous part of the shrub before applying it more broadly.

    Was this answer helpful to you?   Yes No
    2 of 2 people found this answer helpful.
  • Asked by Yale from Millbrae, California
    03/04/2021
    Q
    If using Monterey Horticultural Oil and Monterey Liqui-Cop, which would I apply first? I will be spraying on 2 different days or if during winter, should I only use a dormant spray on my leafless apple tree?
    A

    Monterey Horticultural Oil would be used as a dormant spray. Monterey Liqui-Cop would be used when you begin to see new growth on the apple trees per the product label. 

    Was this answer helpful to you?   Yes No
    1 of 1 people found this answer helpful.
  • Asked by Kathryn from Ca
    04/11/2021
    Q
    Will spraying Monterey Horticultural Oil on azaleas for aphids harm the flowers?
    A

    You should avoid spraying Monterey Horticultural Oil on the flowers as it could bruising or burning to the delicate petals. 

    Was this answer helpful to you?   Yes No
    1 of 1 people found this answer helpful.
  • 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.

    Was this answer helpful to you?   Yes No
    0 of 3 people found this answer helpful.
  • 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.

    Was this answer helpful to you?   Yes No
Displaying 1 to 20 (of 29 questions)