How to Manage Pests

UC Pest Management Guidelines

Susceptibility of Weeds to Herbicide Control

Preemergence

Customize list of weeds ANNUAL WEEDS barnyardgrass bittercress, lesser-seeded bluegrass, annual burclover, California chickweed, common crabgrasses cudweeds filarees fleabane goosefoot, nettleleaf groundsel, common henbit horseweed junglerice lambsquarter lettuce, prickly mallow, little (cheeseweed) mustard nettle, stinging nightshade, black nightshade, hairy pearlwort pigweeds purslane, common radish, wild rocket, London shepherd's-purse sowthistle, common sprangletops spurge, prostrate spurry, corn willowherbs BIENNIAL WEEDS oxtongue, bristly PERENNIAL WEEDS bermudagrass (plant) bermudagrass (seedling) bindweed, field (plant) bindweed, field (seedling) buttercup, yellow johnsongrass (plant) johnsongrass(seedling) nutsedge, yellow nutsedge, purple woodsorrel, creeping (plant) woodsorrel, creeping (seedling)

DCP ISX MET NAP ORY OXA OXY PEN PRO TRI C N C C C C P C C C P C P P P C C P P P C N C C C C P C C C N C N N N N C N N N C C C C C N P C C C C N C C C C N C C C N C N P N C C N N N P C N C P C C N N N N P N N N P P N N N C C P C C C C C C C N C N C P P C N N N P C N N C C C C C C N P N P N P P N N N C N C C C C P C C C C C P C C C C C C C N C N C P P C N N N P C N P P P C P P P P C N P N C C N N N P C C P P C C P P P P C C N N C C N N N P C C N N C C N N N P C P C C N P C C C C C C C C C C C C C C C C C C C C C C C N C N N N C C N N N P C N C N C C N N N N C P P N C C N N N P C P C N C C N N N C N C C C P N C C C P C N N C C C C C C P C C C C N P C C C N P N N P P C N N N                     N N N N N N N N N N                     N N N N N N N N N N C N C C C P N C C C N N N N N P N N N N N N N N P C C P P C N N N N N N N N N N N N N N N N N N N N P N C C C N N P C C N N P P N N N N N N N N P N N N N N N N N N N N N N N N N N C C N N C C C C C C

Postemergence

Customize list of weeds ANNUAL WEEDS barnyardgrass bittercress, lesser-seeded bluegrass, annual burclover, California chickweed, common crabgrasses cudweeds filarees fleabane goosefoot, nettleleaf groundsel, common henbit horseweed junglerice lambsquarter lettuce, prickly mallow, little (cheeseweed) mustard nettle, stinging nightshade, black nightshade, hairy pearlwort pigweeds purslane, common radish, wild rocket, London shepherd's-purse sowthistle, common sprangletops spurge, prostrate spurry, corn willowherbs BIENNIAL WEEDS oxtongue, bristly PERENNIAL WEEDS bermudagrass (plant) bermudagrass (seedling) bindweed, field (plant) bindweed, field (seedling) buttercup, yellow johnsongrass (plant) johnsongrass (seedling) nutsedge, yellow nutsedge, purple woodsorrel, creeping (plant) woodsorrel, creeping (seedling)

CLE DIQ FLU GLU GLY PEL SET C C C C C C C N P N C C P N C C N C C C N N P N C C P N N C N C C C N C P C C C P C N P N C C P N N N N C P N N N N N C C N N N N N C C N N N N N C C N N N N N C C N N N N N C C N N C P C C C P C N P N C C P N N N N C C N N N N N P P N N N P N C C P N N P N C C P N N P N C C P N N P N C C P N N N N C C N N N P N C C P N N C N C C C N N C N C C C N N N N C C N N N P N C C P N N P N C C P N N N N C C N N N C N C C C N N P N C C P N N P N C C P N               N N N P C N N               C N P P C N P C C C C C C C N N N P P N N N C N C C P N N N N P C N N C N P P C N P C C C C C C C N N N N P N N N N N N P N N N N N P C N N N C N C C C N

RATINGS LEGEND

C

= control

P

= partial control

N

= no control

--

= no information

CHEMICAL LEGEND
CLE = clethodim (Envoy)	ORY = oryzalin (Surflan)
DCP = DCPA (Dachal)	OXA = oxadiazon (Ronstar)
DIQ = diquat (Reward)	OXY = oxyflurofen (Goal)
FLU = fluazifop (Fusilade)	PEL = pelargonic acid (Scythe)
GLU = glufosinate (Finale)	PEN = pendimethalin (Pre-M, Pendulum)
GLY = glyphosate (Roundup Pro) and sulfosate (Touchdown)	PRO = prodiamine (Factor, Barricade)
ISX = isoxaben (Gallery)	SET = sethoxydim (Brass Getter)
MET = metolachlor (Pennant)	TRI = trifluralin (Treflan)
NAP = napropamide (Devrinol)

PUBLICATION

UC IPM Pest Management Guidelines: Floriculture and Ornamental Nurseries
UC ANR Publication 3392
Weeds
C. L. Elmore, Weed Science/Vegetable Crops, UC Davis
C. A. Wilen, UC IPM Program, UC Cooperative Extension, San Diego Co.

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