Ferti-Lome® Fire Blight Spray

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Item #H16109, 2 Ounce Concentrate.
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Protect your tree and plant investment! Mix 1 tablespoon of dry concentrate per 2 1/2 gallons of water to your apple and pear trees at the beginning of blossom-time to control bacterial issues like fire blight. Repeat applications every 3-4 days until bloom time ends. Apply an additional spray 5-7 days after blooms end, when weather conditions favor the spread of diseases such as fire blight, bacterial wilt, stem rot, leaf spot, and crown gall. Do not apply when fruit is visible. May also be used on roses. Follow product label for more detailed instructions.

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Questions & Answers

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Browse 38 questions Browse 38 questions and 67 answers
Why did you choose this?
Stark Bro's Store
have had an issue with fire blight so hopefully this does the trick
EDWARD T on Jan 30, 2020
To safeguard my plants against infestation of diseases.
Femi A on Sep 17, 2018
have had an issue with fire blight so hopefully this does the trick
EDWARD T on Jan 30, 2020
Can???t grow pears without it
Mark F on Oct 23, 2018
To safeguard my plants against infestation of diseases.
Femi A on Sep 17, 2018
I have used this product and had success with fire blight. I like the results.
GwendolynH H on Feb 23, 2018
A local Orchard owner suggested this product
Peter A on Dec 31, 2017
Works well with Asian and other pears as well as apples
Bobby O on Nov 5, 2016
I was having problems with fire blight in my baby trees.
LYNDA B on Aug 4, 2016
Used before, works great
Randy E on Jun 15, 2016
Used before
russell S on May 23, 2016
Fire blight on my apple and asian pear trees. Going to give it a try!
Lynn P on May 20, 2016
Recommended by NC Agriculture Dept. Cooperative Extension Agent for pear tree
fire blight.
James S on Mar 21, 2016
I've been having trouble with my fruit trees and from researching your web site this product is part of what I will need to produce a healthy crop.
Beverly C on Mar 7, 2016
Can???t grow pears without it
Mark F on Oct 23, 2018
I have used this product and had success with fire blight. I like the results.
GwendolynH H on Feb 23, 2018
Should this product be used on recently planted apple trees?
Tim N on Apr 22, 2016
BEST ANSWER: Never on a new planted tree. I tried this a few years ago and it damaged the tree.
how much powder in hose end sprayer?
Brenda R on Mar 1, 2017
BEST ANSWER: There are no exact instructions for use in a hose end sprayer, but here is a link to the label, perhaps this will help: //www.fertilome.com/ProductFiles/10363%20Fire%20Blight%20Spray%202oz%20ALL.pdf
will it work on trees that already have blight?
Cheryl K on Jun 29, 2016
BEST ANSWER: This spray is recommended for use in early spring when the trees are blooming and just after the bloom period. If the trees already show signs of fire blight, it's best to prune out the infected wood, making sure to disinfect the pruning tool between each cut. Read more here: https://www.starkbros.com/growing-guide/article/got-fire-blight
my santa rosa plum was loaded with blooms, i sprayed it with the fire blight solution and within a couple of days all the blooms looked like they had been singed by a blow torch. would this have caused the blooms to turn brown?
maggie on Apr 18, 2016
BEST ANSWER: I used ferti lome fire blight spray last year to spray 8 apple and pear trees that had a terrible problem with fire blight. I sprayed them twice, once at full bloom, then again about a month later.
There was no blossom wilt or any negative effects on the blooms on any of the trees that I saw. The fruit did well on all of the trees.

Without a doubt, the spray dramatically reduced the fireblight damage, especially to fruit set. There was still a few patches of fireblight to foliage in late summer, but it was minor compared to previous years.
will this product effect honey bees?
Susan C on Jun 30, 2016
BEST ANSWER: It is an antibiotic, because fire blight is a bacterial infection. To my knowledge it won't hurt honey bees, and i sprayed trees in bloom with it, but you may want to check with bee experts or county extension offices. It contains streptomycin sulfate, which is a strong antibiotic.
do you spray while trees are in blossom?
CAL G on Mar 19, 2019
BEST ANSWER: The label states: To control Fire Blight in home plantings, apply 1 tablespoon in 21???2 gallons of water (equivalent to 100 ppm or 4 ozs. per 50 gallons of water) in foliar and blossom sprays. Make first spray at the start of blossoming period. Continue spray applications every 3 to 4 days during bloom time. Apply additional sprays every 5 to 7 days after blossom period when weather conditions favor spread of Fire Blight. Do not apply when fruit is visible.
Can I use this along with copper to treat apple and peach trees, and ornamental crabapples?
Kathy R on Aug 24, 2020
BEST ANSWER: Yes but I assume you mean in an alternating spray regimen. I would not double up and spray together. Fire Blight is nasty stuff and not cured. Pruning diseased limb tips is part of the solution. I found spraying several times at pink tip and then while open, reduced infection significantly using Fertilome. If growing different varieties, you may have distinct bloom periods which complicates and extends spring spraying. You can buy newer varieties that resist FB but the fun for me is growing heirlooms and there lies the problem. The Fertilome product is pricey if you have many trees to treat. Have not tried white vinegar (2 cups/gal) and some say it works. To keep costs in line, I will try vinegar this fall and spring 2021. I will also experiment with using MILSTOP as an alternating companion to vinegar. Milstop can be used without health concerns.. Terry
can I use it after apple tree flowering?
Losa H on May 3, 2019
BEST ANSWER: Fire blight is a bacterial disease which typically infects trees via the flowers by insects spreading it. Therefore, one can prevent infection by spaying with antibiotic during flowering. After flowering, when infection already occurred, one treats the disease. The latter is possible with frequent spraying (every few days and after every rain), combined with cutting away infected branches. I suggest cutting away infected parts at the first sight of infection (leaves hanging down), well below the affected area to stop further spreading.
how often should I spray it to my young pear tree?
guo l on Apr 9, 2018
BEST ANSWER: I spray just as my tree begins to bloom, again when it is in full bloom, and
once more as most of the petals are dropping. If there is a heavy rain during
this time, I reapply. If fire blight appears during the summer, I cut the affected branch off several inches below the diseased area and apply then.
Can I use this in authorise blight?
Vincent D on Apr 9, 2021
BEST ANSWER: This helps with diseases such as fire blight, bacterial wilt, stem rot, leaf spot, and crown gall.
Can I spray now in the summer or do I have to wait for Spring 2020? And, can I use this on my Buchtel Crabapple tree
MJ C on Jun 25, 2019
BEST ANSWER: Now would be a good time to spray if you see evidence of fire blight as it will just get worse if you wait. Best to remove any infected branches, dip pruners in alcohol after every cut or you will just spread the disease, take infected branches away from growing trees and BURN. I don't fertilize pears very much as excessive new growth fosters fire blight, same goes for a lot of pruning. The trees will do best w/ 3-4" new growth per year and fire blight will be easier to control. Hope this helps, good luck.
how long is the ferti-lome solution stable after adding to water?
tom o on Feb 11, 2018
BEST ANSWER: I contacted the company and they said it could be kept a couple days at best. Hope this helps.
Can you use this product in the fall on just planted pear trees?
Teresa F on Sep 28, 2017
BEST ANSWER: According to the label, you should first apply it during bloom time. Here is a link to the label: //www.fertilome.com/ProductFiles/10363%20Fire%20Blight%20Spray%202oz%20ALL.pdf
I was going to apply this with a backpack sprayer. Is this product considered a wettable powder that is best used with a diaphragm pump in lieu of a piston pump? Any advice would be appreciated.
DENNIS C on Jul 31, 2016
BEST ANSWER: Used a 2 gallon pump up hand sprayer for every application. Worked fine in that. My father also used the product in an avt diaphragm sprayer worked well in that also. A backpack sprayer should do fine for normal applications.
How many tablespoons of product in this container?
Bowden P on Mar 5, 2021
BEST ANSWER: This is a 2 ounce container, We unsure of the exact amount of tablespoons that are in this however the directions state Mix 1 tablespoon of dry concentrate per 2 1/2 gallons of water.
can I use Ferti-lome on Lilac bushes?
Norma G on May 4, 2020
BEST ANSWER: The Fertilome Fire Blight Spray indicates it contains streptomycin, which I think k iantibiotic. s an antibiotic. I know nothing about lilacs so I have no idea why she would want to spray them w/Fire Blight Spray. Probably won't hurt anything other than her pocketbook. Recommend she use her browser to pull up the label.
Can this be used on peaches?
Donut on Mar 5, 2020
I use it on our peach tree at home as well as all the other apple trees - 22 of them. The key is to read the label directions for accurate amounts and when to use it. hope this helps! - Joseph

I work at an orchard as well so I???ve learned a lot from the apple growers. One thing to do is research your variety of peach tree. Is it susceptible to fire light which fertilome treats and is it common to your area?
Can this product be used on raspberries?
Paul P on Jul 3, 2019
BEST ANSWER: If the symptoms are already present, this will not have much effect. We recommend you do the following to prevent the spread of the disease:

Remove and destroy diseased canes immediately. Dip your pruners in a bleach solution or alcohol between cuts. Keep pests under control so they don't transport the disease from one cane to another. Avoid overfertilizing to prevent lush growth, which is susceptible. Manage insect pests to avoid a possible means of moving the bacteria from plant to plant.

Apply copper fungicide or this produt as a preventive measure next spring, starting before or as soon as the first symptoms appear.
Can it help trees that already have fire fire blight?
Susanne H on May 25, 2019
BEST ANSWER: It is meant to be used more as a preventive measure and should not be applied when fruit is visible. If you can't see any fruit yet, you can mitigate the damage with a spray, but otherwise you'll need to start earlier next year to prevent/stop the blight.
what can I use after fruit set ?
Paul S on May 19, 2019
BEST ANSWER: As fire blight here usually shows up early to mis summer the FertiLome should be OK to use, but the best way to control fireblight is to cut off any branches BELOW the affected area, being sure to sterilize cutting tool between cuts or the disease will spread from old cuts to new ones. I always try got complete burn the affected wood and control before it gets a start by using very little nitrogen around the trees. The disease seems to get its start in new growth and pears usually grow fact if there is a loft of N in the soil.
What quantity of spray does the 2ozs. of concentrate make?
Roger W on Jan 31, 2019
BEST ANSWER: It makes 25 gallons of solution.
What are ingredients for Ferti-lome fire blight ?
Bill B on Oct 5, 2018
BEST ANSWER: Hi, Bill. It is essentially an antibiotic. Here is a link to the label:

How many gallons of spray does the ferti-lome 2 oz container?
jk on Jul 23, 2018
BEST ANSWER: This jar makes 10 gallons of spray.
If you spray ferti-lome fire blight spray on pears can they be eat after 3 or 4 weeks later?
Sunshine on Jun 23, 2018
BEST ANSWER: Here is a link to the label. The company says it can be used up to 3 days before harvest.

My pear trees have fruit but disease is spreading fast. Can I still apply product and what are consequences?
A E on May 24, 2018
BEST ANSWER: Yes, but you MUST prune away and sacrifice the diseased branches. Use sterile procedures...wipe your pruners with bleach, Pinesol, or alcohol with EACH cut. I know it's a hassle but you do not want to infect healthy portions of the tree. Bag up all debris and dispose of it. Do not put it in your compost pile or brush pile...that only allows it to continue to thrive. Spray the ground below the tree too. If you notice a lot of ants in your tree, apply diatomaceous earth around the base of the tree. It will keep them from spreading the disease. You will need to reapply the spray according to the instructions on the container...I think it was every 10 days to 2 weeks. The company's website is very helpful.
do i spray the whole tree, trunk leaves over and under?
joe s on Apr 25, 2018
BEST ANSWER: This is a contact spray, not a systemic. You need to spray the whole tree and make sure you remove dead/diseased branches, leaves and any debris from under the tree.
I have a mature pear tree (variety unknown). Since it's so tall, how do I reach the top to spray??? Thanks.
Donna E. on Mar 24, 2018
BEST ANSWER: I can get high enough using a 6' step ladder and a 2 gallon sprayer that can be pumped up to 40 PSI. Just make sure there is no breeze to get the best coverage.
How effective does this compare to Serennade? I have been using Serenade on my Asian pear trees.
yaau c on Mar 8, 2018
BEST ANSWER: I thought that it was very effective. It is very important that the spay be applied during the correct bloom time and in the correct dilution.
Will this be effective on grapes that show definite signs of fireblight or some kind of scorch?
Elizabeth B on Sep 10, 2017
BEST ANSWER: Yes, it will most definitely help. Please do follow the directions exactly; it can be tempting to overdo it, thinking that more spray will be more effective, but just the opposite is true.
Will this product work for bacterial leaf spot i have on pear leaves?
sunnyjay on Jun 29, 2017
BEST ANSWER: Yes. According to the product label this spray is used to control Fire Blight, Bacterial Wilt, Stem Rot, Leaf Spot, and Crown Gall on fruit trees, flowers and shrubs.

Customer Reviews

4.3 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Fire Blight
Did a great job controlling fire blight in my flowering pear trees. I have to spray at the beginning of new season but slowly the fire blight is almost gone. At least, I have saved my trees and did not have to cut my trees down as I was told by local garden shop.
May 5, 2016
over 6 years ago
fertilome fire blight spray review
I used it during bloom time on my apple trees last year what a difference the amount of apples I got off my trees was a lot more than the year be for but I sprayed in the morning or early evening so not to spray it on the bees
June 2, 2016
over 6 years ago
Fire blight spray.
This stuff has been a lifesaver for my trees & it also saved 2 of my josta-berry plants. Fire blight can kill a 3 year old tree is less than a week. If you have it , get this and use it....you won't be dissapointed and can see the results in just a few days.
September 5, 2016
over 5 years ago
Great product and service
I ordered 3 for the discounted price. The product is just what I need and I'm grateful for a great company like Stark Brothers to buy it from. I chose Stark Brothers not only for a fair price, but to support a 200+ year old nursery business .
April 5, 2016
over 5 years ago
Saved my pear trees
This was about the only product I could find, It saved my pear trees
May 5, 2016
over 6 years ago
Fertilome Fire Blight Spray
This spray is expensive to use for our 34 fruit trees, but if you don't use it as one of the Fire Blight deterrents, you probably will have problems you wish you didn't have.
August 11, 2016
over 5 years ago
FertiLome Fire Blight Spray
Used spray and have not, as of yet, seen any blight
April 12, 2017
over 4 years ago
Made a big difference
Used Fertilome for the first time last year and noticed a great reduction in the fire blight on the two apple trees I have. I have sprayed two time so far this year, but it's a little early to tell what the effect will be.
I have apples about the size of a nickel right now(May). Would it be alright to spray fertileLome one more time? Chuck P.
May 9, 2016
over 6 years ago
Blight spray.
Here in New Jersey I have to keep on top of prevention of fire blight on my apples, pears and Asian pear trees. This product goes a long way, is easy to use, mixes well in the sprayer, and is a MUST as a spray.
May 2, 2017
over 4 years ago
have been studying Fire Blight recently because of my small orchard. Anyone who uses this Fire Blight spray needs to use it judiciously and be careful since the Fire Blight bacteria can become resistant to this Streptomycin (same antibiotic used for Strep Throat).
June 24, 2020