Pre Emergent Weed Preventer. Weeds are types of plants that are damaging to other plants and the existence is not desirable on backyard lawn or agricultural land because it will reduce the maximum yields that can be achieved by the production of plants.
Many types of grass itself can be a weed for other plants like flower beds or lawn grass or other plantations because of its aggressive nature.
Grass weeds could be managed mainly by stop the weed seeds from germinating and emerging.
The other way is to remove the weed that already there.
For grass, there are three things to do of how to control them.
1) By the on going maintenance:
– you must fertilize the lawn
– you must water the lawn regularly
– Mow using lawn mower at the correct frequency and height
2) You can hand pulled grass weed. Hand pulling of weeds can be done and can be quite effective for annual weeds.
3) Use the weed killers or herbicides to control and eliminate the weeds. The weed killers or pre emergent weed killers which are applied before the weeds emerge. These weed seeds are usually carried by water, lawn mowers and animals.
Crabgrass weeds that merge in summer, pre emergent either powder or liquid chemicals can be applied in spring when soil temperature rises to 15° Celsius or 60° Fahrenheit.
There is a product called crabgrass preventer that can also be beneficial in controlling winter weeds like poa annua on Bermuda grass.
Annual bluegrass, which is a type of winter weeds, pre emergent weed killers are applied in the month of September or early in October or even in November.
The pre emergent herbicide chemical should be watered using any tools while applying into the soil.
Pre emergent herbicides or also known as weed preventers are used to control annual lawn weeds such as barnyardgrass, spurge, knotweed, purslane, crabgrass, foxtails, and others.
A pre emergent herbicide will not kill the seed or prevent weed seed germination.
The chemical compound will severely limit the root system development of a young weed seedling.
The action of the pre emergent herbicide, is to eliminate the weed before it emerges stopping the weed from growing and establishing.
Pre emergent herbicide will not control existing or a live weeds, but will control seedlings of annual or perennial damaging weeds.
After the application of pre emergent herbicide, the area must be watered to activate them.
You must read the label to determine what are your target weeds for particular brands you are about to purchase.
So here is the list of pre emergent weed preventer.
Surflan AS Specialty ($33.57) is a water based flow able, pre emergent herbicides that can eliminate weeds before they start growing. It is a good herbicide to deliver all season, and residual control of many many variety of damaging weeds, including pigweed, foxtail, barnyardgrass, goosegrass, purslane and lambsquarters. It has many benefits such as a good performance residual protection, can be used as pre germination to post-cultivation, has the best benefit to cost ratio compare to other weed-control application, most net returns and can be used on shrubs and juvenile trees.
Oryzalin – is a safe and economical to use herbicide. According to study, it was most effective in enhancing yield attributes, had maximum grain and straw yields. Compare to other the weed-control treatments, an application of Oryzalin, recorded the maximum net returns and benefit to cost ratio .
Prodiamine 65 WDG Barricade Pre-Emergent Herbicide ($54.24) is one outstanding product for controlling weeds. The best application would be when it is used as a broadleaf and grass weed killer. The best part is that it can be applied in during two seasons, Spring and Autumn. This herbicide will provide season long crabgrass weed control and broadleaf. Other than that, it is suitable for controlling Annual Bluegrass.
The herbicide will mix with good result in the tank with both fertilizers and iron solutions. The good quality that it provide comes from its ingredient Prodiamine as leading pre emergent herbicides. Not only it is effective of controlling crabgrass, 31 other weeds can also be controlled, including chickweed, foxtail, knotweed, henbit, common lambsquarters, lovegrass, pigweed, browntop, prostate spurge, foxtail, annual bluegrass, goosegrass, barnyardgrass, crowfootgrass, cup grass, itchgrass, junglerice, johnsongrass, kochia, Texas, and Fall panicum, common purslane, rescuegrass, Florida Pusley, signalgrass broadleaf, shepherdspurse, Persian speedwell, sprangletop, yellow woodsorrel, and witchgrass. According to many reference, this herbicide is very effective on keeping weeds from growing in many types of grasses. Including Kikuyugrass, Zoysiagrass, Kentucky Bluegrass, Buffalograss, Creeping Bentgrass, St. Augustine, Centipede, Bermudagrass, Bahiagrass, Seashore Paspalum, Perennial Ryegrass, and tall and fine Fescue grasses.
Prodiamine – is one of active ingredient that is used in pre-emergent herbicides. It works as a pre-emergent control of broadlef weeds and grasses. It will help control weeds by applying one time a year. It has registered for commercial use and can be applied to control weeds in golf courses, turf farms, nurseries, landscaping, and many more. It can be a safe to use on grasses without harming. Including common turf grasses, Fescue grass, St. Augustine, and Bermudagrass. This active ingredients works as a birth control for weeds, by preventing the weed seed from growing. It inhibit root growth by stopping cell wall formation and chromosome separation.
Snapshot Specialty Pre-Emergent Herbicide ($107.80) is a high performance herbicide that works for 6 to 8 months to keep the fields free of unwanted and damaging weeds. It can manage more than 125 broadleaf weeds and annual grasses around the clock. It comes in an easy-to-use granular formulation. When it is applied it will bond with the soil and it will not move out of application area. This herbicide can be applied anytime, in early fall, late summer or in early spring.
Trifluralin – this is a pre-emergence herbicide for controlling broadleaf weeds and many annual grasses in a variety of nut, vegetable, tree fruit, and grain crops. This herbicide should be incorporated into the soil within 24 hours of application. It must be applied immediately because it will be broken down by ultra violet. It can only control weeds when it is in the process of germinating. It is not effective on established weeds.
Mistakes of using pre emergent herbicide for grass that make you failed completely.
#1. You applied pre emergent herbicide to soil that has been filled with live weeds. So the soil or the lawn must be weed free before applying pre emergence herbicides. The best time to apply the herbicide is after potting or planting. This is because many weeds germinate within several days of receiving a maximum environmental conditions. That would be the time after you have planted your soil or lawn or fields, where many weeds can germinate because of the good surface within several days.
#2. You failed to performed a good sanitation application. Herbicide alone will not work well without proper sanitation system. You have to be sure thet there is no gap when applying the herbicide.
#3. You use a lower rate herbicide. Now this means you do not properly apply the herbicide according to the instruction. When you apply lower than recommended by the manufacturer rates are used, the herbicide concentration starts out low. The condition with under typical degradation processes, will be degraded to the level where weeds can successfully start to germinate and grow.
#4. You water your plant to much. Over watering your lawn or fields can reduce the efficacy of the herbicide. The herbicide can be washed away a little making it become a reduced rates.
#5. You did not read the instruction. Well, if there is an instruction of use, you should follow them And you should read any limitation or other consideration regarding the application of the herbicide.
Henry Kaswandi is graduated from University of Indonesia majoring History. After receiving the bachelor degree of History, Henry Kaswandi take the education to the next level by graduating from University of Indonesia majoring Information Technology. On daily basis, he writes article and review the product sold on Amazon. Before this, he was the Head of Information Technology Department at PT Indopoly Swakarsa Industry, Tbk and was the Head of Information Technology at PT Pratama Cipta Inaweb.