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Control overwintering pests and their eggs. Protect fruit trees, flowering and shade trees, roses, vegetables, and other garden plants from scale, mites, and aphids — from eggs to larvae and adults. Also controls some fungal diseases like powdery mildew and rust. Use as directed in winter or early spring for proactive care, and during growing season for control on contact. Natural control. Contains paraffinic (mineral) oil.

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Questions & Answers

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Browse 33 questions Browse 33 questions and 64 answers
Why did you choose this?
Stark Bro's Store
Used it before it works very good!!
James E on May 26, 2019
This is the most important spray of the season.
SUSAN H on Mar 31, 2019
Used it before it works very good!!
James E on May 26, 2019
I have trees I bought last year I want to protect.
Louise M on Apr 10, 2019
This is the most important spray of the season.
SUSAN H on Mar 31, 2019
its the season, had rust last year
David S on Mar 25, 2019
Going to try to give the trees and grapes some added protection this year.
Gretchen S on Mar 20, 2019
wish to try along with NEEM for year round protection.
Tom on Mar 5, 2019
Because it works!!
Stacy S on Sep 3, 2018
I chose this spray to spray my new apricot tree in the appropriate times to protect it from disease and parasites, to keep the tree healthy. If I do my part, I???m sure this will prove to be successful too!
Kathleen S on Jul 5, 2018
Last year, I didn't use any sprays, and my apples were damaged and marked. I hope with this, I will get a much better harvest.
APRIL R on May 1, 2018
Protect plants over the winter!
KATE F on Aug 31, 2017
Great organic spray for a multitude of trees and ornamentals
Keenan F on Apr 6, 2017
For our grape vines.
Dan K on Mar 6, 2017
This says you can spray throughout the year instead of just early spring. Seems like a good idea
JADA U on Feb 18, 2017
Good reviews on multiple home and gardening sites
ROBERT H on Feb 9, 2017
It really helped to control and kill the insects and larvae of an African Citrus Psyllid infection on a Tangerine tree!
Usama T on Jan 20, 2017
covers a good many pest
KENNETH H on Sep 6, 2016
Used this last year for the first time, with great success!
KEVIN R on Apr 3, 2016
I have trees I bought last year I want to protect.
Louise M on Apr 10, 2019
its the season, had rust last year
David S on Mar 25, 2019
will it control brown rot?
larry m on Feb 22, 2016
BEST ANSWER: Thank you for your inquiry. The dormant oil is used for the control of insects and pests, rather than diseases. Please call Customer Support at 800.325.4180 for a recommendation.
How much spray will the container make?
Rick on Feb 23, 2016
BEST ANSWER: The applications vary too much to say for certain. Per the label, some plants/trees require as little as 1oz of concentrate per gallon or as much as 7.5oz of concentrate per gallon. Forgive the math, but this should help give you a range to work with: On average, the pint, which is 16oz of concentrate, could make from 2 to 16 gallons of spray, depending on intended use. The quart, which is 32oz of concentrate, could make from 4 to 32 gallons of spray, depending on intended use. I hope this helps!
Is this product not a dormant spray for apple fruit trees?
Terry L S on Mar 10, 2016
BEST ANSWER: Use it on my blueberry bushes, cherry tree, apricot tree, plum tree and my raspberry canes. I know it says in the instructions what dilution to use for Apple trees as well and I know it can be applied at various times during the year but right now is the best time to use it to fight overwintering pests.
Will this dormant spray oil harm bees?
karen l on Mar 16, 2016
BEST ANSWER: Hi Karen......I used this product and another one that Starks sells during the cold weather beforethe bees were active. Some of the fruit trees are in bloom, others coming, and vines will be too. I don't think I wuill have any adverse reaction to the spray....there's millions of honey bees and wild bees of all kinds polinating now. I would think that it is too late to spray the dormant oil now, with things coming in bloom. You might want to wait until the blooms have been polinate before fruit forms, if you haven't sprayed yet. That might be of some good for existing pests in the bark. By the way, I've always figured that a strong bee hive can overcome some mortality from my sprays and surrounding agriculture sprays, but I likely lose many times more bees to about 80-100 barn swallows that come back each summer and have 2-3 clutches of young each season. Hope this helps you in your spraying.
Is it safe for persimmon fuyu tree?
Luda C on Apr 22, 2018
BEST ANSWER: Yes, Bonide dormant spray is safe to use on all fruit trees. It is applied when the tree is dormant and therefore does not get onto the fruit that will not appear until after the tree has flowered. It is not necessary but as a precaution the fruit can be gently washed before eating.
Can I apply this more than once this spring on my apple trees before bud break?
GABRIELLE L on Apr 11, 2017
BEST ANSWER: I would say yes. Apply before buds show any green, again when blossom bud leaves have begun to sprout and showing a bit of green, again when blossom bud leaves are up to 1/2 inch and all during the growing season.
Which oil spray is best to use in early spring on mature apple trees?
Sandra R on Feb 1, 2018
BEST ANSWER: We like this one because it is a natural product and doesn't require a "sticky" additive to make it adhere to plant leaves. It also has an anti-fungal effect.
is this safe to use on my indoor herbs? i.e. parsley, basil, thyme?
barbara k on Jan 12, 2017
BEST ANSWER: This is an excellent, safe, worry-free horticultural oil to use on indoor or outdoor plants, edible or ornamental. It's most effective on sucking insects such as spider mites, aphids, scale and whiteflies, which is usually what plagues plants grown indoors anyway. Please follow the label directions exactly to get the best result.
Will the oil control slugs?
Jolaine T on Oct 25, 2016
BEST ANSWER: Yes, absolutely Bonide All Seasons Horticultural Dormant Oil Spray is very
important for control. insects who want to overwinter on your fruit trees or roses.
If you don't use it, the number of insects that hatch out in Spring is greatly
increased, as I've experienced over several decades, in different parts of the
U.S. PLEASE USE All Seasons Dormant Oil Spray every year.. I use it twice in
the Fall, October and November on my 36 Stark Fruit trees and 70+ rose bushes.
RS I live near Louisville, KY
How much do I mix with a gallon of water for best coverage?
Ardi K on May 16, 2019
BEST ANSWER: Peel the label on the back side of the bottle for directions. It varies with the use, but I use 4 or 5 ozs. per gallon. It is pretty forgiving stuff. And it works.
Is it too late to use the All Season spray on peach, apple, plum, and nectarine trees that have small fruits? I live in Northeastern PA? Thank you.
Sally T on May 14, 2017
BEST ANSWER: No.. using it will help control bugs in a safe and pesticide free manner.
Is dormant spray safe for lady bug and bees?
Anderson-Fisk L on Mar 16, 2016
BEST ANSWER: I use it and I have bee hives and no problem I use the spray in the fall it for use on trees and bushes when leaves are off and for green tip mainly to kill eggs
I live in zone 5 and I've been told dormant oil will damage a fruit tree when applied in freezing weather. Can this product be used on apple and pear trees when temperatures are below 32 degrees?
Andrew S on Oct 7, 2019
BEST ANSWER: I believe it is to be used above freezing. I try and use it as soon as possible in the spring when the temperature during the day are above 40 degrees.
Can this be used on BlackBerry bushes?
DonnaN on Sep 19, 2019
BEST ANSWER: Yes, it is quite effective on overwintering pests. Please use according to the label directions.
will this control caterpillars? They're demolishing my apple saplings
JDawg on Jun 13, 2019
BEST ANSWER: Yes, it will do a very good job with the caterpillars. Please use according to the label directions.
Will this kill the worms that bore into your peach trees?
Shawn V on Apr 22, 2019
BEST ANSWER: This is a better product to get rid of borers: //
can I use this product on all shrubs and bushes?
Jane H on Mar 21, 2019
BEST ANSWER: You can, but follow the label directions exactly or you could damage tender young leaves. Do not overuse the product; more is not better. :-)
How can the products like copper fungicide, and bonide dormant spray be considered organic?
Jim M on Mar 1, 2019
BEST ANSWER: Because they contain no synthetic/artificial or toxic ingredients. They are made from all-natural sources and comply with all USDA Organic regulations.
What works best to prevent Fire Blight ?
Gary G on Jan 31, 2019
BEST ANSWER: We have an excellent product called Ferti-Lome. The 2 oz. jar makes 25 gallons of spray, which is highly effect on fire blight. Here is a link to that page://
Can you also spray in fall after the leaves have fallen in Maine?
GABRIELLE L on Sep 23, 2018
BEST ANSWER: Hi, Gabrielle. You can; it's best to spray in late winter to take care of overwintering pests so they don't interfere with new growth.
Can this be mixed with serenade?
leah k on Feb 17, 2018
BEST ANSWER: You can mix the two. Actually, the dormant oil helps the Serenade adhere to the leaves and work a little better.
Is this spray safe for pear trees?
Kathy on Dec 3, 2017
BEST ANSWER: Yes, this is a natural product that is safe for pear trees. Some fungicides can be damaging to pear trees, but not this product. Here is a link to the label, which specifically directs the user to apply it to pear trees: //
How often do I reapply?
Kyle N on Apr 22, 2017
BEST ANSWER: I've been spraying this on apple trees only once a year at the end of winter before any growth shows up. Been using it for 8 years with stellar results.
How soon after this application, can I apply a fungicide spray?
John D on Apr 6, 2017
BEST ANSWER: The label provides information specific to the plant you are using the spray on, so be sure to refer to that. Generally, the label restricts use of the horticultural oil with sulfur or copper sprays (ingredients that certain fungicides contain), and suggests allowing at least 3 weeks between applications of this product and certain other types of spray.
That's, "Do I need to add a spreader/sticker to this oil?"
Rapheal G on Feb 6, 2017
BEST ANSWER: Dormant oil does not require a spreader. Save it for your insecticide and fungicide spray
Does it destroy gypsy moths?
Judy S on Jan 12, 2017
BEST ANSWER: The label lists quite a few types of moth that the product controls, but it doesn't specifically state gypsy moths, so I can't say for sure.
How long does the unmixed oil keep for? 32 ozs is a lot cheaper than 16 ozs
Daniel D on Dec 4, 2016
BEST ANSWER: Thank you for your question! It keeps indefinitely, but should not be allowed to freeze.
Is this product organic?
Carol C on Oct 20, 2016
BEST ANSWER: Thank you for your question. Yes, it is a natural control.
How do I apply this to a cherry tree?
ANTHONY S on Oct 20, 2016
BEST ANSWER: Please follow the directions on the label. For cherry trees, mix 2.5 to 7.5 to one gallon of water for cherry trees. We also suggest you read this article on spraying with this product, it will be very helpful to you: /growing-guide/article/spraying-dormant-oil
Can it help with Cedar Apple Rust?
Gary Y on Oct 20, 2016
BEST ANSWER: This is the correct product to use for cedar apple rust. Here is a link to the actual product label:

Customer Reviews

4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Bonide All Seasons Horticultural Dormant Spray Oil
Easy and safe to use and it works.
Does not kill bees or others pollinator's
May 7, 2016
over 5 years ago
Bonide All Seasons Dormant Spray Oil
Obviously reviewing this product after only 1 application is premature, but the instructions are clear and it is easy to use with a 2 gal. pump sprayer. It was shipped quickly. Looking forward to a great fruit tree season.
May 22, 2018
1 year ago
Bonide Dormant oil spray
Easy to work with, no pesticide added, however there is no way to tell of the products success.
November 2, 2016
over 5 years ago
Bonide All Seasons Horticultural Dormant Spray Oil
I can't say how well it works because I just applied it today,but what I can say is it mixed very easily and and went on with little effort .
November 20, 2016
over 2 years ago