Myrtle Spurge

 

** Take Action NOW **
AGAINST

Myrtle Spurge

Colorado State Department of Agriculture
A List

(weed requiring eradication).
      Bright Yellow flowers. All parts are poisonous; sap may cause burns or irritate skin. Now is the time to dig them up.
Use Precaution!

 P1020122     P1020124       P1020116 Myrtle Spurge  Photos taken March 6, 2016

Aliases-Creeping spurge, Donkey tail spurge

Perennial
Flowers
are yellow and small, blooms March to May.
Trailing
stems (fleshy blue-green) up to 18” long.
Leaves
are fleshy, waxy, grayish-green, alternate, egg-shaped to circular surrounding         the stem.
Root-taproot
Reproduces
from seed (viable for 8-12 yrs.) but can reproduce from fragments
so dig at least four inches of root.
Control– Dig (wear protective clothing, gloves and eyewear) when soil moist and before   going to seed Bag all parts.

Since the weed Committee is not licensed for weed application or to make recommendation we have copied the information and recommendations from the State of Colorado Dept. of Agriculture and/or from Jefferson County Weed and Pest Control website. This is shown below.

From Jefferson County 700 Jefferson County Parkway, Ste 100 Golden, CO 80401   303-271-5989   jeffco.us/weed

CHEMICAL – Residential Use
Site Herbicide Timing
Lawn or turf 2-3 pint 2,4-D +1 pint Dicamba per acre. See label for directions for smaller areas.

Use a 2,4-D formulation that has 4.0 lbs. active ingredient/gallon.
*Most pre-mixed/ready-to-use products do not contain the required concentration.

Apply to foliage in spring and to fall re-growth
Landscape beds 5% Glyphosate (Roundup, others)
*Most pre-mixed/ready-to-use products do not   provide the required concentration.
Apply to foliage in spring and to fall re-growth
CHEMICAL – Rangeland Use Rangeland

R-O-W

Non-crop

2-3 pints 2,4-D +1 pint Dicamba per acre. See label for directions for smaller areas.

Use a 2,4-D formulation that has 4.0 lbs. active ingredient/gallon.

*Most ready-to-use products do not contain the required concentration.

Apply to foliage in spring and to fall re-growth
2-3 pints 2,4-D + 20 fl.oz. Picloram per acre. Use a 2,4-D formulation that has 4.0 lbs. active ingredient/gallon. Apply to foliage in spring and to fall re-growth
1 quart Picloram per acre (Restricted use) (Tordon 22K) Apply to foliage in spring and to fall re-growth
CULTURAL Prevention.

Removal –

Wear protective clothing (long sleeves, long pants, gloves). Remove the top 4-6 inches of root. Place plants in a bag and dispose of them at a landfill. Do not compost or put into green waste containers. Plants may re-grow, repeat as necessary
MECHANICAL
Burning, Grazing N/A
Mowing Not recommended – Will spread seed.
Use all chemicals according to the manufacturer’s label. No specific recommendation or endorsement is made or implied by listing the above methods or products.

 

Colorado Dept. of Agriculture
HERBICIDES
NOTE:
The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates.

Always read, understand, and follow the label directions. The herbicide label is the LAW!

Herbicide Rate Application Timing
2,4-D ester 2 qt./acre + 1%v/v methylated seed oil Use a 2,4-D ester formulation that has a 4.0 lbs. active ingredient/acre. Apply during spring or during fall regrowth.
Dicamba + 2, 4-D 1 pint/acre dicamba + 2-3 pint/acre 2,4-D (amine or ester) Use a 2,4-D formulation that has a 4 lbs. active ingredient/gallon. Apply during spring or during fall regrowth.
Picloram (Tordon/Picloram 22K-Restricted use pesticide)+ 2,4-D 20 oz./acre + 2-3 pints/acre 2,45-D (amine or ester Apply at flowering growth stage during spring or to fall regrowth.   DO NOT use near trees, desireable shrubs, water, or high water table

More information available at:
https://www.colorado.gov/pacific/agconservation/myrtle-spurge

https://www.colorado.gov/agconservation/Factsheets/MyrtleSpurgeFactSheet.pdf