Susceptibility of Winter Weeds to Herbicide Control / Small Grains / Agriculture: Pest Management Guidelines / UC Statewide IPM Program (UC IPM)

	BRO	CAR	CHS	CLO	DIA*	FEN	GLY	MCA*	MES	PAR*	PEN	PYR	TRI	24D*
ANNUAL WEEDS
barley, hare	N	N	C	N	N	N	N	N	C	P/C⁺	N	N	—	N
bluegrass, annual	N	N	C	N	N	N	N	N	C	P/C⁺	C	N	C	N
brome, ripgut	N	N	C	N	N	N	N	N	P	N	P	N	C	N
burclover, California	N	P	C	C	C	N	C	P	N	P	—	—	—	C
canarygrass, hood	N	N	C	N	N	C	N	N	C	N	C	N	C	N
canarygrass, littleseed	N	N	C	N	N	C	N	N	C	N	C	N	C	N
chamomile, mayweed	C	—	C	—	C	N	C	N	P	C	N	—	—	N
chickweed, common	N	P	C	—	P	N	C	N	C	C	P	C	C	N
fiddleneck, coast	C	C	C	—	P	N	C	P	P	P	C	N	C	P
filarees	N	P	—	P	C	N	P	P	—	C	P	—	—	C
groundsel, common	P/C⁺	—	C	—	P	N	C	C	P	C	N	—	—	C
henbit	N/P⁺	—	C	—	C	N	C	C	P	C	C	C	C	C
knotweed, prostrate	N	—	C	N	C	N	P	C	N	N	N	C	C	C
ladysthumb	P/C	—	—	C	C	N	—	C	P	P	N	C	—	C
lettuce, prickly	C	—	C	—	P	N	P	C	P	C	N	C	—	C
mallow, little (cheeseweed)	N	P	C	N	C	N	P	P	P	N	N	C	—	P
milkthistles	N	—	—	—	C	N	C	P	P	P	N	—	—	C
miner's lettuce	N	—	C	—	P	N	C	N	C	C	C	—	—	N
mustards	C	P	C	N	C	N	C	C	C	C	P	—	—	C
nettle, burning	N	C	—	—	N	N	C	N	—	N	N	C	—	N
oat, wild	N	N	C	N	N	C	C	N	C	P/C⁺	C	N	P	N
oxtongue, bristly	C	—	C	—	P	N	—	P	—	—	N	—	—	C
pimpernel, scarlet	—	—	C	—	—	N	C	—	—	—	N	—	—	—
pineapple-weed	C	—	C	—	P	N	—	C	P	C	N	C	—	C
radish, wild	P	P	C	—	P	N	C	P/C⁺	C	P/C⁺	N	C	—	C
redmaids (desert rockpurslane)	N	—	C	—	C	N	C	C	N	C	C	—	—	C
rocket, London	C	C	C	P	C	N	C	C	—	C	P	C	—	C
ryegrass, Italian	N	N	C	N	N	N	C	N	C	P/C⁺	C	N	C	N
shepherd's-purse	C	P	C	P	C	N	C	C	—	C	P	C	P	C
smartweed, pale	P/C	—	—	C	C	N	—	C	—	P	—	—	—	C
sowthistle, annual	C	P	C	P	C	N	C	P	—	C	N	C	—	C
sowthistle, spiny	N	—	—	P	C	N	C	—	—	N	N	—	—	—
spurry, corn	N	—	C	—	N	N	C	N	—	C	N	—	—	N
stickleafs	N	—	C	—	—	N	C	N	—	—	N	—	—	N
tarweeds	C	—	C	—	C	N	C	P	—	C	N	—	—	P

= control

= partial control

= no control

—

= no information

*	Permit required from county agricultural commissioner for purchase or use.
+	Control varies depending on size of weed at application; the smaller the weed, the better the control.

Susceptibility of Winter Weeds to Herbicide Control