Susceptibility of Spring and Summer Weeds to Herbicide Control / Apricot / Agriculture: Pest Management Guidelines / UC Statewide IPM Program (UC IPM)

Weeds Pages

Weed Management

	PREEMERGENT												POSTEMERGENT
	FLM	IND	ISO	NAP	NOR	ORY	OXY	PEN	PRO	RIM	TRI	CAR	CLE	CLO	DLI	FLU	GLY	OXY	PAR*	PYR	SET	24D*
Mode of Action¹	14	29	21	15	12	3	14	3	3	2	3	14	1	—	—	1	9	14	22	14	1	4
ANNUAL WEEDS
barnyardgrass	C	C	N	C	P	C	P	C	C	C	C	N	C	P	P	P	C	N	P	N	C	N
chickweed, common	C	C	C	C	P	C	N	N	C	C	P	C	N	C	C	N	C	N	C	C	N	N
cocklebur	—	—	P	C	C	N	C	N	N	P	N	P	N	—	—	N	C	C	C	C	N	C
crabgrasses	C	C	N	C	P	C	N	C	C	C	C	N	C	N	N	C	C	P	C	N	C	N
cudweeds	C	C	P	C	C	N	N	N	N	—	N	N	N	P	P	N	C	P	N	C	N	P
fleabane, hairy	P	C	P	N	P	N	P	N	N	C	N	N	N	N	N	N	C	P	P	P	N	P
foxtails	C	C	N	C	C	C	N	C	C	C	C	—	C	P	P	C	C	N	C	N	C	N
filarees	C	C	C	C	P	N	C	N	N	C	P	C	N	P	P	P	P	C	P	P	N	P
goosefoot, nettleleaf	C	C	C	C	C	C	C	P	C	P	C	—	N	N	N	N	C	P	C	C	N	C
goosegrass	C	—	N	—	C	C	N	C	C	—	C	N	C	N	N	C	C	N	P	—	—	N
groundcherry	C	C	C	N	C	P	C	N	C	C	N	C	N	C	C	N	C	C	C	C	N	C
horseweed	C	C	P	N	P	N	P	N	N	C	N	N	N	N	N	N	C	P	P	P	N	C
junglerice	C	C	N	C	C	C	P	C	P	C	C	N	C	P	P	P	C	N	P	N	C	N
knotweed, oval-leaf	—	P	C	C	P	C	P	C	C	C	C	—	N	N	N	N	P	P	C	C	N	P
lambsquarters, common	C	C	C	C	P	C	C	C	C	C	C	C	N	P	P	N	C	C	C	C	N	C
lettuce, prickly	P	P	C	C	P	N	C	N	N	C	N	P	N	N	N	N	C	C	P	C	N	C
lovegrass	C	C	N	C	P	C	P	C	C	P	C	N	C	N	N	C	C	N	P	N	C	N
nightshades	C	C	C	N	C	N	C	N	C	C	N	P	N	C	C	N	C	C	C	C	N	C
pigweeds	C	C	C	C	P	C	C	C	N	C	C	C	N	C	C	N	C	C	C	C	N	P
puncturevine	C	—	P	N	C	P	C	C	N	C	P	—	N	P	P	N	C	P	C	P	N	C
purslane, common	C	C	C	C	P	C	C	C	C	C	C	P	N	N	N	N	P	C	C	C	N	C
sandburs	—	C	N	C	P	C	N	C	—	—	C	N	C	N	N	P	C	N	P	N	P	N
sowthistles	P	C	C	C	P	N	C	N	P	P	N	N	N	C	C	N	C	C	P	C	N	C
sprangletops	P	C	N	C	P	C	N	C	C	—	P	N	C	P	P	P	C	P	P	N	P	N
spurge, spotted	—	C	C	N	P	P	P	C	P	C	N	—	N	C	C	N	C	N	C	C	N	C
starthistle, yellow	—	C	—	—	—	N	C	N	N	P	N	N	N	N	N	N	C	N	C	P	N	C
thistle, Russian	C	C	P	C	C	P	P	P	P	P	P	C	N	N	N	N	C	P	C	C	N	P
willowherb, tall annual	P	C	P	N	P	P	C	—	—	—	—	—	N	N	N	N	P	N	N	P	N	C
witchgrass	P	—	N	—	C	P	C	C	C	—	C	N	C	P	P	C	C	N	N	N	C	N
PERENNIAL WEEDS
bermudagrass (seedling)	N	—	N	C	C	C	N	C	N	N	N	N	C	P	P	C	C	N	P	N	C	N
bermudagrass (established)	N	N	N	N	P	N	N	N	N	N	N	N	P	N	N	P	P	N	N	N	P	N
bindweed, field	N	P	N	N	N	N	N	N	N	P	N	P	N	P	P	N	P	N	N	P	N	P
blackberries, wild	N	—	—	N	N	N	N	N	—	—	N	—	N	N	N	N	C	N	N	N	N	P
dallisgrass (seedling)	—	—	N	C	N	C	N	C	C	N	C	N	C	N	N	C	C	N	N	N	C	N
dallisgrass (established)	N	N	N	N	N	N	N	N	N	N	N	N	P	N	N	P	P	N	N	N	P	N
dandelion (seedling)	—	—	P	C	N	P	N	N	N	—	N	—	N	N	N	N	C	N	P	—	N	C
dandelion (established)	N	N	N	N	N	N	N	N	—	N	N	—	N	N	N	N	P	N	N	—	N	C
dock, curly	—	—	N	N	N	N	N	N	N	—	N	—	N	—	—	N	P	N	N	—	N	P
fescue, tall	P	P	N	—	C	C	P	—	C	P	C	N	P	P	P	P	C	N	P	N	P	N
fluvellins	N	—	—	—	—	—	—	—	—	—	—	—	N	—	—	N	P	—	—	—	N	—
johnsongrass (seedling)	C	C	N	C	C	C	N	C	C	P	C	N	C	N	N	C	C	N	C	N	C	N
johnsongrass (established)	N	N	N	N	P	N	N	N	N	N	N	N	P	N	N	P	P	N	N	N	P	N
nutsedge, yellow	N	N	N	N	P	N	N	N	N	P	N	N	N	N	N	N	P	N	N	N	N	N
nutsedge, purple	N	N	N	N	P	N	N	N	N	P	N	N	N	N	N	N	P	N	N	N	N	N
oxalis	N	—	C	N	—	P	C	P	—	—	P	—	N	N	N	N	C	—	P	—	N	P
plantain, buckhorn (seedling)	—	—	P	—	—	—	—	—	N	—	—	—	N	N	N	N	C	—	C	—	N	C
plantain, buckhorn (established)	—	N	P	N	N	N	N	N	N	N	N	—	N	N	N	N	P	—	N	N	N	P

= control

= partial control

= no control

—

= no information

Herbicide	Mode of Action¹	Herbicide	Mode of Action¹
CAR = carfentrazone (Shark EW)	14	ORY = oryzalin (Surflan)	3
CLE = clethodim (SelectMax)	1	OXY = oxyfluorfen (GoalTender)	14
CLO = clove oil (Matran II, BurnOut II)	—	PAR = paraquat* (Gramoxone Inteon)	22
DLI = d-limonene (Avenger)	—	PEN = pendimethalin (Prowl H2O)	3
FLM = flumioxazin (Chateau SW)	14	PYR = pyraflufen (Venue)	14
FLU = fluazifop-p-butyl (Fusilade)	1	PRO = pronamide (Kerb)	3
GLY = glyphosate (Roundup)	9	RIM = rimsulfuron (Matrix SG)	2
IND = indaziflam (Alion)	29	SET = sethoxydim (Poast)	1
ISO = isoxaben (Gallery)	21	TRI = trifluralin (Treflan)	3
NAP = napropamide (Devrinol)	15	2,4-D = 2,4-D* (Orchard Master)	4
NOR = norflurazon (Solicam)	12

*Permit required from county agricultural commissioner for purchase or use.

¹Group numbers are assigned by the Weed Science Society of America (WSSA) according to different modes of action. Although weeds may exhibit multiple resistance across many groups, mode of action numbers are useful in planning mixtures or rotations of herbicides with different modes of action.

Text Updated: 10/14