Category Archives: Weed-i-pedia

How Does Prodiamine Work?

Category: Weed-i-pedia Tagged , , , |

When you take a look at the Crabgrass Germination Map below, you realize how early Spring really comes in the world of weeds.  Depending on weather and where you live, crabgrass could begin germinating as early as January.  At Stone Brothers & Byrd, we recommend Prodiamine for effective pre-emergent control of tough weeds like crabgrass, dallisgrass and many others.

How Does Prodiamine Work?

Pre-emergent herbicides like Prodiamine have a 3-4 month residual in the soil.  An application in January will provide continued protection through March, which is when most weeds will become active.  Mix 2-3 tablespoons of Prodiamine to one gallon of water to cover 1,000 square feet.  As weeds begin to germinate, Prodiamine will sterilize the seed growth before it reaches the critical bi-foliar stage.  Remember that Prodiamine is a non-selective herbicide.  This means that it will effect all emerging seeds.  If you plan to sow grass seed, make sure that your 3-4 month active window of Prodiamine control has past.  With this consideration in mind, you can make continued applications of pre-emergent up to three times per year.  This can provide year-round control.

Crabgrass Germination Map


Poa Annua

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Poa Annua, aka annual bluegrass, is a smallish, tufted winter annual that infiltrates lawns and causes general dispair throughout the nation. Read More


Category: Weed-i-pedia

Quackgrass is a perennial grass (weed) that grows from from rhizomes. Unchecked, Quackgrass can reach a height of 3 1/2 feet.  Commonly found in  lawns that are generally above the Mason- Dixon Line  form coast to coast. Read More


Category: Weed-i-pedia

Hairy bittercress (Cardamine hirsuta L.) is a winter and early spring annual weed. Also known as Pepperweed, Shotweed and Snapweed, Bittercress can grow to 3-9 inches long, with the leaves mostly on the lower portion Read More


Category: Weed-i-pedia

A UFW, or “Unidentified Freaking Weed” can be vexing.  “What is this thing and how do I get rid of it?”  Fear not.  If you email us a photo of your weed in question, Read More


Category: Weed-i-pedia

Sandburs (Cenchrus echinatus) are summer annual weeds that infest lawns, sports fields, parks and unsuspecting feet throughout the South. Germination begins in late spring and Read More


Category: Weed-i-pedia

Nutsedge is a perennial weed that infests lawns and causes general despair throughout the US.  Yellow nutsedge(Cyperus esculentus) and Purple nutsedge (Cyperus rotundus ) colonize in thick, dense groves Read More


Category: Weed-i-pedia

Crabgrass (Digitaria, D. sanguinalis) runs rampant throughout the United States.  Crabgrass germinates when the ground temperature reaches

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Category: Weed-i-pedia

Taraxacum (pron.: /təˈræksəkʉm/) is a large genus of flowering plants in the family Asteraceae. They are native to Eurasia and North and South America, and two species, Read More


Category: north carolina, plants, Weed-i-pedia

Lambsquarter, also known as Goosefoot (for the shape of its leaves). It’s easy to identify and grows like a weed Lambsquarter, also known as Goosefoot (for the shape of its leaves). Read More