Prodiamine WDG Herbicide Drop-N-Go Packs

0-0-7 Prodiamine WDG Pre-Measured Packets For Sprayers

What you have here are (6) 20-gram packets (inside a larger pouch) of pre-measured prodiamine WDG (water-dispersible granule). The WDG formulation is dropped and mixed into water in your backpack sprayer to form a liquid spray for pre-emergent. The primary target of prodiamine is crabgrass in the spring and Poa annua (annual bluegrass) in the fall. It will have an effect on other weeds, but it’s mainly sold for those two.

Why Is This Special?

This is the first ever formulation that comes in pre-measured packets, perfect for 4,000 sq ft of coverage. Every single packet is 20 grams, and when you mix it into 4 gallons of water, you have the right dosage for a single application with no measuring or weighing required. There are 6 of these packets in the pouch you are purchasing for a total available coverage of 24,000 sq ft.

Prodiamine WDG generally has variable rates, and we made this to match Yard Mastery strategies in our lawn care app, ebooks, and videos. In those strategies, we recommend 2 spring applications, known as a “split app” strategy, and either 1 or 2 in the fall depending upon grass type.

Spring Application ALL Grass Types

In spring, you make 2 applications to prevent crabgrass. One comes in early spring as soil temps cross 50F heading to 55F. Drop a single packet into your 4-gallon sprayer and make your application to 4,000 sq ft of lawn area. Water it in after. (Download our app for soil temps in your zip code)

The second spring application comes as soil temps hit around 65F. At that time, mix in another packet with 4 gallons of water and once again, cover 4,000 sq ft. Water it in after.

Now you are protected from crabgrass all during its growing window of later spring and summer.

Fall Application Kentucky Bluegrass and Ryegrass

As soil temps fall to 70F coming out of summer, drop a single packet into 4 gallons of water and make your application to 4,000 sq ft of lawn area. This will help prevent Poa annua (annual bluegrass) heading into fall and winter, as well as a few other weeds such as henbit and bittercress. Water it in after.

This is your final application of the season as you have reached your maximum allowable use for the calendar year. Kentucky Bluegrass and Ryegrass are allowed 3 total applications per the label in our strategies.

Fall Application Tall Fescue, St Augustine, Zoysia, Bermuda, Centipede, Bahia

As soil temps fall to 70F coming out of summer, drop a single packet into 4 gallons of water and make your application. This will help prevent Poa annua (annual bluegrass) heading into fall and winter, as well as a few other weeds such as henbit. Water it in after.

If you live further south, you will want to make one final application about 45-60 days later to protect you all through winter. This is primarily for areas where there is no snow cover and the lawn is exposed and dormant during December, January, and onward. Folks with bermudgrass in Georgia, for example, will see their lawns spotted with green bluegrass clumps during winter. A later application of prodiamine in October or November will help cut down on this condition.

Once you have made this second fall application, you are done for the calendar year as you have reached your yearly maximum allowable “pounds on the ground” for prodiamine. You can start again the following calendar year in late winter or early spring again. Tall Fescue and the warm season grasses are allowed 4 total applications per the label per calendar year in our strategies.

What If I Don’t Have 4,000 Sq Ft?

We made these pre-measured prodiamine packets to work in 4-gallon sprayers but realize not everyone has 4,000 sq ft. of lawn area. If that is the case and you have, say, 3,000 sq ft, then you can break open one of the packets and weigh the product just like you had to do in the past when the only option you had was a full giant 5lb jug.

In that case, you weigh out 5 grams of prodiamine for each 1,000 sq ft of lawn area. If you have 3,000 sq ft, you would break open a packet and weigh 15 grams of prodiamine, put that into your sprayer with 3 gallons of water, and spray your 3,000 sq ft.

The application rate for every application, spring or fall, is 5 grams for each 1,000 sq ft of lawn area. Those 5 grams are mixed into 1 gallon of water, and that 1 gallon of spray mix covers 1,000 sq ft. That is the base measurement and application rate

Size Options & Coverage

• 1 packet covers 4,000 sq ft (pre-measured)
• The large pouch contains 6 packets for 24,000 sq ft of total available coverage

Application Information

• When to Apply: Best in spring or fall when soil temperatures are between 55°F and 70°F
  
• How to Apply: Backpack or pump sprayer
  
• Application Rate: Pre-measured packets are 5 grams/1000 sq ft, 4,000 sq ft coverage
  
• Water-In: Water in with at least 1/2" of irrigation or rainfall within 48 hours
  
• Frequency: For crabgrass, apply twice in spring for best results
  
• Important: Do NOT use if seeding or reseeding, as Prodiamine will prevent seed germination
  

Yearly Maximum Application Rates: 

Product Specifications

• N-P-K Analysis: 0-0-7
• Nitrogen: Immediate and slow-release blend
• Iron Content: 3%
• Bio-Nite™: Yes, for soil microbe health
• Micronutrients: Iron, Manganese, and Zinc
• Form: Water-dispersible granule (WDG)
• Application Rate: 5 grams per 1,000 sq ft (one 20g packet per 4,000 sq ft)
• Storage: Store in a dry location for up to 3 years

Resources & Videos

• Product Label & Specs (PDF)
• Granular Fertilizer Spreader Settings

Frequently Asked Questions

Is this safe for all grass types?
Yes! It is safe for all established cool-season and warm-season lawns.

Can I use this if I’m seeding or overseeding?
No, Prodiamine will prevent new seed from germinating.

How soon do I need to water it in?
Yes, water into turf within the first 48 hours with 1/2" of rainfall or irrigation.

How often should I apply?
For crabgrass, apply twice in spring; see label for annual max rates by grass type.

What is the active ingredient?
65% Prodiamine, the same ingredient used by professionals.

How long does a packet last in storage?
Store dry, up to 3 years. For best results, keep in a cool, moisture-free environment.

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