

🌱 Take control of your garden’s health—because thriving plants don’t wait!
Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate is a powerful, rainproof formula designed to cure and prevent a wide range of fungal diseases on ornamental plants, fruits, vegetables, and lawns. Its concentrated formula allows for customizable mixing, providing up to two weeks of protection per application. Trusted by gardeners for its effectiveness without damaging foliage or pollinators, it’s the go-to solution for maintaining a vibrant, disease-free garden even in humid or challenging conditions.












| ASIN | B0035H0RA8 |
| Active Ingredients | Myclobutanil |
| Best Sellers Rank | #20,313 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #90 in Insect & Pest Repellent Spray Concentrates |
| Brand | Spectracide |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,375) |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00071121610003 |
| Is Discontinued By Manufacturer | No |
| Item Form | Spray |
| Item Weight | 1.2 pounds |
| Item model number | HG-51000 |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | United Industries |
| Product Dimensions | 2.2 x 3.7 x 8.3 inches |
| Target Species | Insects |
| UPC | 071121610003 |
N**᭡
It literally works. No foliar damage. Fixed an early blight in one night.
This works. Period. I live in zone 8, and summers are extremely humid. So together with an out of balance good /damaging bugs, for my gardens there will be fungus. No matter how many steps I take for proper garden practices, not over watering, not wetting foliage, no leaving debris on the ground from trimmed plants etc. Anyway, last year was the first time I used it and it saved my gardens. This year, just as helpful . I really had a difficult time deciding with what type of fungicide to choose from . I was considering the copper one. I'm just glad I went with this. Yesterday, there were signs of blight I could just see it on half of my plants . The pumpkin vine leaves were all droopy and the female buds turned brown and died before opening. I sprayed the vine , and the VERY next day it had perked back up with a green female bud visible. Same with my annual flowers . I can spray this properly diluted ratio (I go a little under just to be safe) directly on any plant parts and there has been zero foliage burn. I don't have to spray it directly on the flowers, bc I do not want to harm pollinators. However, without this product , there would be zero flowers /plants for any pollinators and my plant therapy would be no more. I am not even being dramatic. This works. It's safe for garden flowers and plants. Does not cause any browning. Simple and effective . Fact. I keep this stocked (although it lasts a long time with one application, and there are plenty of applications with this concentrate). I use a 32 oz high output regular style spray bottle. This method is certainly less hassle compared with the other styles, excluding mass planting areas. I will include a photo for reference. First picture - this pumpkin would not exist if I hadn't used some spray on the leaves and mainly the female buds that never opened- small, brown/yellow that would shrivel right off. The poor things were just helpless, it seemed nothing could keep them healthy! However, this product did such, ridding whatever fungus present. A week or so later, a robust female flower was able to prosper. Second picture - we had a tail end of a hurricane (2017) come through, which "mashed" this zinnia to the ground. The area was soggy and humid, yet this fungicide prevented fungal infection. Every orange flower is on this one zinnia. This example is fairly odd and unflattering, yet it demonstrates the effectiveness of this product. Third picture- the type of bottle referenced above. Last: balsam impatient plant, day before & day after Long review but my passion is this right here, and without this product, in my area I would not have thriving plants.
E**2
As a low-cost alternative, this worked!
So far so good, it managed to stop the fungus growth in its tracks on my St. Augustine lawn. I will probably treat again in 2 weeks to maintain the lawn and prevent further spread. I just sprayed my rose bushes, flowers and bushes today at 1fl oz to a gallon of water. I'm hoping that will stop the rust spots that I'm seeing. I will update once I see a change if at all.
J**K
Great product
Stopped most disease on my vegetable plants.
M**R
Great for South Florida
I have excellent results with this product. When used as directed it will cure the black spot. My roses had new growths and leaves within the first week. I used weekly for the first few months. I use it at least monthly for prevention. I had a lot of products that weren’t as effective in the past. I use them every now and then to prevent resistance. I have a lot of bees , they arrive early so I spray in The evening. I haven’t seen a decline in population. However They are like addicts for other flowers such as cuphea and angelonias and I don’t spray those so that maybe a variable. I thought a few roses were over sensitive to the product because they burned every time. I didn’t mind those spots However recently other roses burned and some were slow to recover. The same type of roses in another area did fine. Eventually the burned rose looked water deprived as well. I got a moisture meter and learned some areas weren’t retaining water well. So make sure plants are well hydrated before spraying. One problem I have is that Amazon has never packed this product well. One cracked leaked saturating the bottom of the box. Never order chemicals with other stuff especially other chemicals because not everyone packs chemicals with care.
D**N
A good product fair price.
Works well in a sprayer, mixed as directed.
N**H
It worked!
Yes, my borders are packed. And every summer since I planted them, no matter how hot and dry, my peonies have developed serious cases of powdery mildew- never to the point of actual harm that I can see, but heavy enough to make me worry. So, this Spring, I took action: Right after the peonies leafed out, I went in and thinned them and drenched them with a batch of this stuff- 1oz: 1 gal. water, and 6 weeks later, there is NO sign of the fungus. The label suggests applying every two weeks, but that seems excessive. I just did my second application today just for good measure, and am hoping to get through the rest of the summer without doing it again. Update: it also seems to have solved a mild case of black spot on one my roses. I used the same dilution and same method of drenching the entire plant to dripping.
H**D
Not sure
Used it this past summer, but did not have great results. We had way too much rain and dark, cloudy days for much to survive.
G**V
Effective Fungicide for the Garden!
The Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate is a great product! I used it in my garden, and it effectively protected my plants from fungal diseases. It’s easy to mix and apply, and I noticed a visible improvement in plant health after use. So far, it has worked well on vegetables, flowers, and shrubs, providing long-lasting protection. Definitely a must-have for garden care—highly recommend!
Trustpilot
2 months ago
1 day ago