You’ll need to take good care of your grass if you want it to grow well and look great. This means fertilizing, mowing the lawn regularly, aerating the soil, and dealing with weeds and fungus.
Many gardeners want to know if they can apply fungicide, fertilizer at the same time to make the job easier and can lead to that green lawn sooner. Applying fungicide and fertilizer on a large lawn is a time-consuming job. However, you can lay down fungicide and fertilizer together when your fungicide is of a particular type.
Water breaks up granular fertilizer, so it enters the soil, and if you use a fertilizer of this type, which is activated by water, this process helps it work. However, some fungicides only work when they have dried on the leaves of plants and grass. So, if your fungicide doesn’t need water activation, you can’t effectively apply it with your fertilizer.
In our guide, you can learn the answer to, can I fertilize after applying fungicide, and how can I get around it? By the end, you’ll know how to apply fungicide and fertilizer simultaneously by knowing which are the right products and when and how you need to use them. (Read What Is 19-19-19 Fertilizer Used For)
Is It OK To Apply Fungicide and Fertilizer Together?
You can apply a granular fungicide and a granular fertilizer if you use one. Because both products are activated on any type of grass by watering your lawn after application, this combo functions nicely.
Before mixing your preventative fungicide and fertilizer, measure both. Next, use a broadcast spreader to apply them across your lawn evenly.
It is best to wait three to five days after applying a liquid fungicide before applying fertilizer, as this combo doesn’t work well together as your fertilizers require water.
To increase nutrients in soil and grass health, you can use fungicide and fertilizer in tandem, so you need to use two similar product types that need watering to work.
Most fertilizers need water to be activated and washed into the soil, where they may feed the grass.
Fungicides are made to be sprayed on plants to kill fungal infections on the grass blades; thus, you shouldn’t wash liquid fungicides off of grass blades as this renders them ineffective.
Some fungicides can be found in granular form and must also be watered in; applying these simultaneously as your fertilizer saves time and produces faster results.
You might be unsure which fertilizer to use on your lawn because there are so many distinct kinds on the market.
The best fertilizer to use is one that doesn’t burn and is high in nitrogen because this will encourage grass growth, make your lawn greener, and work well on many grass type.
Using a lawn starting fertilizer and a fungicide-containing fertilizer is best.
These products have been developed explicitly for new sod and grass seedlings, making them kinder to the grass. In addition, they work in combination with fungicides.
However, the answer to, should you water lawn after applying fungicide? It isn’t always a yes, depending on the type of fungicide you may already have. (Learn How To Protect New Grass Seedlings From Frost)
Can You Mix Copper Fungicide With Fertilizer?
Using a liquid copper fungicide alongside fertilizer is not advised. You must apply copper fungicide under dry conditions, and it must be allowed to sit on lawns for twelve hours following application.
- Following the copper fungicide application, it is good advice to restrict sprinkler watering for three days.
- After using a copper fungicide, wait three to five days before fertilizing or using an herbicide.
Will Fertilizer Make Fungus Worse?
Both lawns that receive insufficient fertilizer and those that receive enough fertilizer are subject to fungal disease.
A fungal disease, such as brown patch disease or lawn rust, is far more likely to occur in your lawn if it is stressed from drought, fertilizer burn, poor soil pH, or nutrient-poor soil.
You may provide your lawn with the nutrients it needs to resist a fungal infestation through regular lawn maintenance with the right time and fertilizer application.
Fungus on your lawn can result from too much and too little fertilizer.
Your lawn is at risk for fungus invasion because of drought, poor soil quality, and fertilizer overuse.
Use this slow-release, non-burning fertilizer to help your lawn resist the fungus.
Use a slow-release, organic fertilizer to avoid fungal infection brought on by too much fertilizer.
This is true during the warmest parts of the summer and the early spring green-up when lawns can be harmed by excessively applying high-nitrogen fertilizer.
Does Fertilizer Kill Fungus?
Lawn fungus cannot be eliminated by fertilizer on its own. However, it would help if you used an effective fungicide to treat any lawn affected by a specific lawn disease.
Ensure your lawn is on the proper maintenance schedule after it has recovered, as healthy, fertilized lawn plants can repel any future fungus disease.
Fertilizer can’t kill fungus; to get rid of the fungus; you’ll need to use a lawn fungus management treatment. Your lawn will become stronger and more resistant to fungus if you use slow-release fertilizer regularly.
To help your lawn resist disease, use proper cutting, watering, aeration, dethatching, and soil monitoring techniques besides fertilizer.
Establishing a fertilizer schedule, watering your lawn deeply twice per week, aerating and dethatching as necessary, and monitoring the pH of your soil are some ways to keep fungus from damaging your lawn.
The less you do maintain your lawn, the less likely it is that fungal diseases will overtake it.
What Fungicide Should Not be Mixed with Fertilizer?
For three days before or after fertilizing, refrain from using liquid fungicides.
Although some lawn fungicide products claim to be rainproof after a few hours, prolonged watering may cause some runoff or cause fungicide to leak into the soil, where the active ingredient in the fungicide is not beneficial.
Therefore, wait at least three days before applying fertilizer if you applied a liquid-type fungicide first.
Some liquid fungicides are washed away by the watering necessary to water the fertilizer into your yard, decreasing their effectiveness.
Because they don’t need to be watered in, you can’t combine most liquid fungicides with fertilizer. You must apply fertilizer and fungicide separately, at least three days apart. Also, you need to follow this guideline if using herbicides.
Wait for one to two weeks before fertilizing and fungicide-spraying your lawn, as the yellowing or browning of grass because of nutritional deficits can occasionally be mistaken for a fungal disease.
It’s a good idea to fertilize your lawn first and see whether your grass changes with the boost of nutrients.
If your grass greens up and the grass improves, you may not need to apply fungicide, and fertilizer makes your lawn plants healthy to fight off the need for a fungicide or even an herbicide.
How Long Should You Wait to Fertilize After Applying Fungicide?
After using a liquid fungicide application, wait three to five days before fertilizing your lawn or garden.
This is because you must stop watering, which is necessary once you apply granular fertilizer products. You can apply fertilizer to your plants the same day you apply a granular fungicide.
Before spreading fertilizer, wait three to five days after applying a liquid fungicide.
There is no need to wait to fertilize after using a granular fungicide.
It is best practice to wait 1-2 weeks between applying fertilizer and spray fungicide or an herbicide. You can therefore observe how the various applications affect your lawn.
If you use the right fertilizer, your grass may become greener and recover from the nutrient deficiency-related yellowing that can be mistaken for lawn fungus or other common diseases. (Learn How Much Does A Mature Sago Palm Cost)
What Fungicide Can be Applied at the Same Time as Fertilizer?
You can apply fertilizer and a fungicide at the same time if the fungicide needs to be watered in to work.
This is because fertilizer must be watered in to feed the soil. If your fungicide also needs water to work, they work with your fertilizer, so the best fungicides for this use are granular products.
- Apply a granular fungicide at the same time as you spread fertilizer.
- If the fungicide needs to be watered in to take effect, only apply fertilizer and fungicide simultaneously.
- Fungicide and granular fertilizer can be combined in a spreader and applied simultaneously.
- Measure out the fertilizer and fungicide needed for your yard, ensure they are thoroughly mixed, then pour them into your lawn spreader to save time and simplify the task.
What is the Best Fertilizer to Mix with Fungicide?
You can mix granular fungicide with granular fertilizer. Apply both products simultaneously, then water them into your lawn to feed your grass and kill fungus.
This ensures that both products are effective. For example, the following lawn fertilizers work best when combined with fungicide:
- Many lawns can benefit from this environmentally friendly, non-burning fertilizer.
- This high-nitrogen fertilizer will encourage thicker lawn by encouraging enhanced blade growth.
- Fungicide can be mixed with a lawn-starter fertilizer and spread together, which is helpful for sod or seedlings.
After applying the fungicide and fertilizer, water them for 0.5 inches. A typical sprinkler system typically takes 30 minutes to complete without the requirement to be tank mixed.
