

🌱 Defend your garden like a pro—because your plants deserve the best!
Ortho MAX Garden Disease Control Concentrate features 29.6% Chlorothalonil, a powerful fungicide that protects a wide range of plants from common diseases such as leaf spots, rust, blights, and mildews. This 16-ounce concentrate dilutes to 64 gallons of spray, offering extensive coverage for vegetables, fruits, flowers, shrubs, and ornamentals. Water-based and designed for outdoor use, it effectively prevents and controls plant diseases without damaging foliage, making it a trusted choice for serious gardeners.



| Best Sellers Rank | #112,776 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #357 in Insect & Pest Repellent Spray Concentrates |
| Brand | Ortho |
| Customer Reviews | 4.0 out of 5 stars 87 Reviews |
| Item Form | Spray |
| Item Weight | 1.3 Pounds |
| Liquid Volume | 16 Fluid Ounces |
| Target Species | Fungus |
| UPC | 071549033705 071549029760 |
M**Y
Great for leaf spot
We try to avoid using too many chemicals in our yard, but nothing was working to prevent leaf spot on a number of large photinia in our yard that act as a privacy screen. Once the leaf spot takes hold, the leaves all die off and you're left with an ugly mess until the next season when the leaves grow back, only to get the disease and fall off again. We tried various sprays and methods before buying this and nothing worked. This stuff worked/works great. Not only does it prevent the leaf spot from spreading but in our experience it actually got rid of existing leaf spot, which from what I had been reading was not really possible. I go out and spray with a hose-end applicator about once a month (maybe twice a month during the prime growing season in spring when there's a lot of rain), and it keeps the leaf spot from coming back.
R**K
Seems to work well as preventative
Seems to work well as preventative treatment. Have tried on a number of plants and did not cause damage like you get with some similar products
H**T
Amazing product
I had fungus issues with my blue spruce pines and also with my box shrubs. Applied Ortho 3 times (once a month) with very positive results and fully recovered pines/shrubs. Great product!
T**P
VERY SATISFACTORY
I have used this product before and it performs very well. Ortho is a good product overall.
A**R
Not a 100% cure!
Plants are doing better. Too much rain lately so I can't really tell. After three applications blight is still present.
R**Y
Didn't work. Lost everything to a fungus. Had ...
Didn't work. Lost everything to a fungus. Had to chop everything down and start over.
J**A
I wasted a lot of time trying to use that and ...
Was using a different plant care product for black spot on my roses (something with neem oil) that simply wasn't working. I wasted a lot of time trying to use that and lost all the leaves on my roses. After using the Ortho Max Garden Disease Control consistently, they completely healed. I did use it more frequently than what the directions indicated until it was gone but the plants have bounced back 100%. It definitely did the job.
F**S
If you must use chemicals...
...this product seems to work. Tomato blights, fungi and insects are kept at bay. Less stinky than some other multi-purpose products.
Trustpilot
2 months ago
2 weeks ago