When to apply prodiamine in spring. Part 1 of this series can be found here. Jul 22, 2025 · What Soil Temperature to Apply Prodiamine: Understanding the Optimal Conditions Soil Temperature and Prodiamine Application: The Importance of Timing When it comes to applying prodiamine, soil temperature plays a crucial role in determining the efficacy of the pre-emergent herbicide. Jan 19, 2022 · I understand prodiamine is effective for up to 90 day? Do I really need to check soil temps before application or should I go ahead put it down in February- March? I'm planning to use the granular- lesco stonewall. When you apply excess prodiamine, the microorganisms that break it down multiply at an undesired rate. The excess breakdown of the product results in a pre-emergent barrier that wears down quickly, increasing the likelihood of weed germination on your lawn. Early Spring (March-April) Apply pre-emergent herbicides when soil temperatures reach 55°F Target crabgrass and other summer annual weeds Use products containing prodiamine or dithiopyr Late Spring (May-June) Apply post-emergent broadleaf weed control Treat for Mar 15, 2024 · The best time to apply Prodiamine granular is in early spring or fall before weed growth begins. Follow the split application strategy, applying once when your soil temperatures are 50º-55º and again when your soil temperatures are 65º-70º. I prefer the split applications strategy because it gives you a hedge against unforeseen circumstances that could lessen the effectiveness of your application. By applying a pre-emergent in the spring, you are ensuring that your new grass does not need to compete with weeds as it gets strong and thick. Choosing and calibrating How To Apply Prodiamine 65 WDG - Liquid Pre-Emergent Mix and Application Instructions Prodiamine WDG - 5oz - how to mix and apply. The specific application rate should be determined by dividing the yearly maximum of prodiamine per 1k square feet by 2. Oct 11, 2017 · Prodiamine can be applied all by itself, or in conjunction with a fertilizer or liming treatment. Feb 21, 2025 · It is recommended to apply Prodiamine once in the early spring when soil temperatures reach 50-55 degrees Fahrenheit and again when temperatures reach around 65 degrees for extended control. But are these numbers Mar 28, 2024 · Answer: The general rule for spring is to apply your pre - emergent herbicide treatment such as Barricade 4FL Pre - Emergent Herbicide (Prodiamine) after the ground has thawed from the winter but before the temperature of your soil reaches 55 degrees, as that is when crabgrass begins to germinate. Proper timing based on soil temperature is critical - apply in early spring or fall before weed seeds sprout. Jan 29, 2019 · This is a 2 part breakdown of Prodiamine 65 WDG giving you a yearly application schedule with soil temperature milestones. Easy to apply with a DIY spreader for a weed-free lawn all season long. When to apply Prodiamine? The best application time for Prodiamine is in early spring or late winter. If your fall application of P is supposed to last through winter until Spring when the Temps raise back up to 55 degrees I don't see how a change in temp will affect your barrier once it's already applied (since it was applied prior to freezing temperatures) Prodiamine Prodiamine is a pre-emergent herbicide that is economical, offers a low-dose application rate, and is highly effective against controlling over 30 grassy and broadleaf weeds including crabgrass, goosegrass and poa annua. Key Points: The Feb 28, 2024 · Early spring (early April) is too early to apply Nitrogen, especially if you spread a winter fertilizer the year prior – apply Prodiamine 0-0-7 Dimension contains some post-emergent qualities and can act as a post-emergent crabgrass killer, particularly on younger crabgrass in the first 1-2 tiller stages Apr 29, 2021 · When is the best time to apply Prodiamine 65 WDG (Generic Barricade) for poa annua (annual bluegrass) in a bermuda lawn for for fall and early spring pre-emergent control?. This allows the product to establish a barrier against unwanted weeds, preventing their growth. Spring date minus 6 months, or can I Dec 18, 2024 · Proper timing of pesticide applications makes all the difference in maintaining a healthy, weed-free lawn throughout the year. Sep 16, 2024 · The article provides information on the application schedule and rates for prodiamine on Bermuda grass. Aug 19, 2018 · You want to get it down before soil temps drop below 70 in the fall and before they come up to 55 in the spring. Do I just base it on my Spring timing, i. - If you are overseeding in the fall, you apply a light enough dose in the spring that it has worn off by your seeding date. Split applications mean we apply 2 “lighter” applications of prodiamine in spring rather than 1 “heavy” treatment. This is a professional formulation of prodiamine pre-emergent and therefore can be mixed in several different concentrations depending on your grass type, approach and how long you want the application to last. Sep 12, 2018 · Blaine from Henderson, Tx writes At what rate and when do I apply Prodiamine 65 WDG for poa annua in the fall and crabgrass in the spring? I have 3/4 acres of burmuda in East Texas. Jan 19, 2025 · Prodiamine is a selective pre-emergent herbicide used to control grassy and broadleaf weeds. Apr 1, 2022 · This might be a very simple newbee-question, but I got a little unsure about Prodiamine-apps and soil temperatures. May 14, 2025 · Key Takeaways Prodiamine is a pre-emergent herbicide that stops weed seeds from germinating, offering proactive weed control for lawns and gardens. You absolutely can and should! Prodiamine will not hurt your new grass that germinated last fall. Mar 6, 2022 · The best application time for Prodiamine is in early spring or late winter. But its efficiency entirely relies Oct 3, 2017 · Wanted to take monty up on his prodiamine split offer, so was doing some research and see lots of references on when to apply in Spring, but can't find much timing info on a Fall application if splitting them up. Next application is in the mid spring when soil temperature is over 65-degree F and reaching 70-degree F. Various Lawn-guys on Youtube recommend to apply Prodiamine when soil temperatures reach 50 degrees in spring, others recommend a window of 55 to 70 degrees. May 14, 2025 · There are two primary application times for prodiamine: The goal in spring is to prevent summer weeds such as crabgrass, goosegrass and foxtail. This will catch a lot of weeds (mainly crabgrass) before they germinate. In early spring, apply it when soil temperatures are about 50 degrees, and in the early fall, when they are about 75 degrees. For maximum effectiveness, an early spring application is suggested as temperatures begin to climb into the 50 degrees Fahrenheit. This herbicide comes as a dissolvable solid (as Prodiamine 65 WDG, water dispersible granules), as a liquid, sold as Prodiamine 4L, or as a granular solid, sold as Barricade. It recommends applying prodiamine twice a year, in the spring and early fall. Prodiamine does not kill anything, it is designed to block new germination of seeds. There are a couple plans that people commonly use for Prodiamine. e. Designed for easy application, it is mixed with water and sprayed to create a protective barrier on the soil surface, effectively preventing weed seeds from germinating and growing. It is important to follow the label instructions for the specific grass type. 2g per 1,000 square feet. The soil temperature is the important metric to focus on when applying Prodiamine, since pre-emergent herbicides interrupt the germination process, which is triggered by certain weather conditions. If you’re applying Dithiopyr WDG (water dispersible granule), you have three options to schedule your applications: Full application of Dithiopyr when soil temperatures reach the 55 degree mark in spring, or 70 degree mark in Fall Split application of Dithiopyr in the early cool season and again halfway through Split application of Prodiamine in early cool season and Dithiopyr halfway Sep 15, 2020 · Get ready for your Fall Pre-Emergent Application with The Lawn Care Nut including Who Is Ready Now, Options for Pre-Emergent Herbicides, Least Expensive Options, Granular Prodiamine, Dithiopyr and more! 2 days ago · How Does Prodiamine Work? Prodiamine is a pre-emergent herbicide that’s applied in early spring or early fall, before annual weeds like crabgrass and poa annua show up. 5–1 inch of water after application is essential to activate Prodiamine in the soil. Aug 13, 2019 · This allows the prodiamine to soak into the soil thus creating your barrier. An additional application in the fall is also important and will help ensure that weed seeds from the current growing season do not get a chance to establish Prevent crabgrass and weeds with Prodiamine pre-emergent! Ideal for spring and fall applications, this pro-grade formula offers up to 3 months of protection. Unlike post weed killers that weaken the root of plants, pre-emergent like Prodiamine prevents sprouting; that’s absolutely right! Weeds like crabgrass and foxtail sprout along with plants like cucumber, corn, or squash; they compete for sunlight and water. Spring Prodiamine should be applied when the soil temperature is below 55°F. Jan 26, 2023 · Discover how Prodiamine pre-emergent stops weeds before they sprout! Learn how it works, when to apply it, and best practices for a weed-free lawn all season long. Apr 21, 2020 · How long it is active depends on the rate of application and can be anywhere from 3-9 monhts on cool season turf. Unlike post weed killers that weaken the root of plants, pre-emergent like Prodiamine prevents sprouting; that’s absolutely right! Apply Prodiamine WDG in the early spring when soil temperatures are approaching 55-degree F at the recommended rate of 183oz/5. Prodiamine is non-staining, and offers a wide range of application flexibility. Thanks! Mar 14, 2023 · We do prodiamine “split applications” in my strategies. Whats the best rate to use and how many applications, how often. Watering the lawn with 0. qgozsbn4 tzush6 f8esaq prrf y2avc 4ulv7q 9sy jhqfq 5kz7 xqn