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grassy weed with big seeds

For Established Weeds

It is also important to mow your lawn at the highest recommend level for your specific grass type. This will shade the soil and make germination more difficult. Many cool season turf grasses can be mowed at a height of 3 to 4 inches. Depending on your grass type, see the Cool Season Grasses or the Warm Season Grasses Warm Season Grasses sections of this site for helpful mowing and planting information.

There are usually three to seven spikes that can either be folded up like a funnel or spread out in a whorl pattern. Each plant can produce as much as 150,000 seeds a year. Crabgrass germinates from seed each year when soil temperatures reach 55 degrees for five consecutive days. The blooming of forsythia in your area closely coincides with the germination of crabgrass seeds.

Cultural Practices that Help Prevent Grassy Weeds

If you have had problems before with foxtails, the best way to stop their development is with a preemergent herbicide. These preemergents are added to spring fertilzers.

A preemergent (also spelled pre-emergent or pre-emergence) herbicide works by preventing cell division on young plants. A preemergent doesn’t actually prevent the seeds from germinating, as commonly believed. However, once the seeds do germinate, the chemical prevents the cells from dividing and the seed dies. In this way, the seeds are destroyed. An important note: Preemergents will have the same effect on most lawn grass seeds as well. Do not overseed directly before or within a few months after herbicide application or your seed may be ruined.

Summer Annual Broadleaf Weeds
Many of the most problematic broadleaf weeds are annuals. Here you will find specific summer annual weed information, with weed names, photos and control methods.

One main difference between chemical preemergents and corn gluten meal is the amount applied. Corn gluten meal must be applied between 10 to 30 lbs 1000/sq.ft. Generally, 20 lbs/1000 sq. ft. is the average for most lawns. Use more for severe weed problems. It does not require a license to use.

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*Always read product labels thoroughly and follow instructions, including guidelines for specific lawn grass types.

Controlling these persistent lawn weeds and others requires killing these invaders, roots and all. IMAGE All-In-One Lawn Weed Killer starts working on contact to kill tough weeds in established lawns all summer long. The ready-to-spray container attaches to a regular garden hose, automatically measuring and mixing as you spray. It delivers visible results in three to seven days and kills weeds completely within two to three weeks.

For best results, treat new weeds as they emerge from soil, when they’re young, actively growing and still less than 3 inches tall. This stops these lawn pests before they can establish, set seed and spread on their own. Used as directed, IMAGE All-In-One Weed Killer is guaranteed not to harm your lawn.*

To help your lawn grass stay at its competitive peak, follow these “good practices” as well:

When unwelcome weeds turn up in your lawn, don’t wait and watch them spread. Reclaim your turf with IMAGE brand and IMAGE All-In-One Weed Killer. You can kill lawn weeds — roots and all — and get back to a beautiful, healthy, weed-free lawn.