Pre-emergent Herbicides are the best way to reduce and eliminate weeds in your lawn. Pre-emergent Herbicides work by preventing weed seed germination. They create a layer that kills the weeds as they try to push past the top layer of soil.
The key to using pre-emergent herbicides is proper timing. There are two times of the year to apply your pre-emergent herbicides, the spring and the fall. When to apply these during that time period depends on your geographic location, you can contact your local county extension for the best times to apply. Most spring and summer weeds will germinate when the soil temperature at 4 inches down reaches about 52 to 55 degrees F for three or four consecutive days.
Some popular weeds that can be effectively controlled by pre-emergents include but are not limited to:
Early Spring Application: Many of the pre-emergent herbicides have similar qualities and control the same broad and grassy weeds. When applied at the correct time they are very effective and we recommend our top products such as these:
Other products include:
Late Spring Application: If you are applying pre-emergent later in the season, the best option would be to use pre-emergents that have post emergent qualities to control the seeds that have already germinated and have already sprouted. Our top products include:
Other products include:
Spring Application Chart
*temperatures vary year to year so optimal application could vary from these dates
Early Fall Application: When applying pre-emergents in late summer and early fall we would recommend using the same products as Late Spring Application. This way you can control the already existing weeds and prevent any further growth.
Mid to Late Fall Application: When applying pre-emergents in this part of the year we would recommend using the same products as Early Spring Application.
An Interactive Soil Temperature Map by Syngenta is a handy tool.
$67.95 As low as: $65.95
Alligare Bromacil / Diuron 40/40 is a pre-emergent, broad spectrum, and non-selective herbicide. It has a label to control a wide range of grasses and broadleaf weeds on industrial and non-crop areas. Bromacil/Diuron 40/40 controls many perennial weeds at the highest rate on the label and the annual weeds at permitted lower rates.
Bromacil is comparable to Krovar.Learn More
$19.50 As low as: $10.10Easy to use shaker jug for small yards and ornamental beds. Pre-emergent control of grassy and broadleaf weeds. Dozens of tolerant ornamentals listed. Non-staining. For northern and southern turf grass species. Depending on rate used, one application can Learn More
$153.95 As low as: $148.50
Gallery 75 D, by Dow AgroSciences, contains Isoxaben 75%. Gallery 75DF is a specialty herbicide that effectively controls 95 species of broadleaf weeds for up to eight months. It can also be used on 230 container-grown ornamentals and 440 field-grown ornamentals. It may also be applied over the top application on more than 400 ornamentals. This pre-emergent herbicide controls the tough to kill dandelion.
Use Rates: 0.25- 0.50 oz per 1,000sq.ft.Learn More
$137.50 As low as: $128.50
Quali Pro's Isoxaben 75 WG is equivalent to Gallery 75 Dry Flowable
Use rates: . 0.25- 0.50 oz per 1,000sq.ft.
Isoxaben 75 WG is a pre-emergent herbicide that effectively controls broadleaf weeds. Isoxaben 75 WG is a selective pre-emergent and will last up to eight months. As a pre-emergent herbicide, it stops broadleaf weeds from germinating from seed. It has measured well in performance in ornamental, nursery, and landscape applications as well as working on both cool and warm season grasses. Only apply Isoxaben 75WG to turf grasses that are established. This wettable powder formulation may be tank mixed with other herbicides. Please see label for details and cautions.Learn More
$109.95 As low as: $107.50
Pendulum 3.3 EC (Emulsifiable Concentrate) contains Pendimethalin as its active ingredient. This preemergent herbicide has a very broad range of control of troublesome weeds such as crabgrass, oxalis, spurge, goose grass and close to 40 other broadleaf and grassy species.Learn More
$189.00 As low as: $182.00
Get ahead of your weeds with Pendulum AquaCap pre-emergent herbicide before your weeds even start. When a weed would germinate in a treated area, they contact the herbicide and both shoot and roots stop growth.
Pendulum AquaCap would not control weeds already in place. For the control of established weeds, Pendulum AquaCap may be used in conjunction with herbicides registered for post-emergence use.Learn More
Starting at: $3.95p>Chemical resistant Unlined Nitrile Gloves These 13 inch unlined gloves provide protection against a broad range of pesticides, solvents, and other hazardous materials Made from a special nitrile (NBR) compound these gloves are perfect for pesticide mixing and application. Available in sizes 7, 8, 9 , 10. which are equivalent to small, medium, large, and extra large. Each hand is embossed with glove size for ease of pairing after laundering. Learn More
$149.90 As low as: $140.95
For a more economical alternative, with Dithiopyr - 40%, compare: Quali Pro's Dithiopyr 40 WSB
Dimension Ultra 40 WP is known as an excellent herbicide for pre-emergent and post emergent crabgrass control. It will also control other annual grasses and broadleaf weeds such as goosegrass, chickweed, Poa annua, and spurge for season-long control. According to its label, it will suppress or control 45 different broadleaf weeds and annual grasses. Dimension Ultra 40 WP as an over the top application label for nursery ornamental plants.
Except for crabgrass control (up to tillering stage of development), this product should be used as a pre-emergent only. Use this pre-emergent herbicide prior to germination of target weeds in spring, summer or fall. Half inch or more of rainfall or irrigation is needed to activate Dimension Ultra 40 WP.Learn More
$13.95 As low as: $10.05
This Vine and Stump Killer works quickly to kill stumps and vines. It also kills some broadleaf weeds. It is used to control undesirable woody vines, plants, and broadleaf weeds. It is safe for lawns. Because this Vine & Stump killer has a quick uptake, it acts quickly.Learn More