Page 148 - AG 7-2011 Revised 2016

Photo Courtesy of PBI/Gordon Corp. Filaree
(Erodium spp.)
Photo Courtesy of PBI/Gordon Corp. Filaree are winter annual members of the geranium family. Filaree
has a shallow coarse tap root. The feather like compound densely-
haired leaves form from a prostrate basal rosette. The leaves
consist of 5 - 9 opposite leaflets which are deeply cut. The leaves
of white stem filaree are broader and the leaflets are less deeply
cut than red stem filaree. Stems are also hairy, grow low and
spreading.
The flowers of filarees form umbrella shaped clusters which are
pink to purplish in color and contain 5 petals. Filaree reproduces
by seed.
Filaree is found in Canada and the United States and is abundant
on the west coast. Filaree is usually found on dry sandy soils.
Immature Stage

Integrated Pest Management Control Recommendations
Cultural Practices:
For physical removal of plants in turfgrass areas, hoe or dig up as soon as rosettes are recognized.
Herbicide Use:
To control red or white stem filaree in turf, make your postemergent herbicide application to plants that are actively
growing and in the seedling to flower stage of growth. A good turf management program which includes irrigation
will also help to prevent infestations of filaree.

Yellow Rocket (Wild Mustard)
(Barbarea vulgaris)

Yellow rocket is a winter annual or biennial. The leaves which are
glossy dark green, develop in a rosette. The basal leaf consist of a
round terminal lobe with smaller lateral lobes that form opposite on
the leaf petiole. The plant can reach heights of 2 - 3 feet, but it can
tolerate mowing in a turf situation. The root of yellow rocket consist
of a taproot with a fibrous root system.
The flower of yellow rocket is yellow in color and appears in the
late Spring. The flowers form in a cluster at the end of stems, with
individual flowers consisting of 4 petals. Yellow rocket spreads by
seed.
Yellow rocket can be found throughout most of the United
States.
Immature Stage

Integrated Pest Management Control Recommendations
Cultural Practices:
Although a weed of turfgrass, it can be found in nurseries and other ornamental settings. Also found along
roadsides. Yellow rocket prefers loamy nutrient soils. Culturally, yellow rocket can be controlled by mowing to
prevent the formation of flowers and seed. The existing plant can be dug and removed.
Herbicide Use:
Since yellow rocket is a winter annual which germinates in the fall, postemergent herbicide applications will be
most effective at this time. Use a selective postemergent application timed after germination when plants are
young and actively growing.

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