Olive

Agricultural pest management


Susceptibility of Weeds to Herbicide Control

(Reviewed 3/14, updated 3/14)

In this Guideline: More about weeds in olive:

Susceptibility of Spring/Summer Weeds to Herbicide Control
Customize LIST OF WEEDS PREEMERGENCE     POSTEMERGENCE
  DIU FLM IND ISO ORY PEN OXY SIM CAR CLE FLU GLY OXY PAR* PYR SET
Mode of Action1 7 14 29 21 3 3 14 5 14 1 1 9 14 22 14 1
ANNUAL GRASSES
Barnyardgrass C C N C C P P     N C C C N P N C
Crabgrasses C P C N C C P N N C C C P C N C
Foxtails C C N C C N C N C C C N C N C
Lovegrasses C C C C P N C C C N C N C
Sandburs C N C C N P N C C C N P N C
Sprangletops N C N C C P N N C C C N C N C
Witchgrass P P C P C N C C C N C N C
ANNUAL BROADLEAVES
Cockleburs C N N C C     P N N C C C P N
Cudweeds C C N N N C N N C P N N
Fleabane, Hairy C C C C N N P C N N N C P C P N
Fluvellins P P N P P N N P P P N
Goosefoot, Nettleleaf C C C C C C C N N C C C N
Groundcherries C C C C N C C C N N C C C N
Knotweeds C C P C C C C C N N C P P P N
Lambsquarters, Common C C C C C C C C N N C C P P N
Lettuce, Prickly C C P C N N C C N N C C C P N
Mallow, Little (Cheeseweed) C C C C P P C N C N N P C N P N
Nightshades C C C N N C C C N N C C C P N
Pigweeds C C C C C C C C C N N C C C P N
Puncturevine C C P P C P N N C C C N
Purslane, Common C C C C C C C C N N N C C C C N
Speedwells P P C C N N N C P C N
Starthistle, Yellow C C N N C C N N N C C P N
Thistle, Russian P C C P P P P N N C P C N
Velvetleaf C C C P N C C C N N C N P C N
Willowherb, Tall Annual (Panicle-leaf) C C C P C C C N N P P P N
PERENNIALS (SEEDLINGS)
Bermudagrass N C N C C N P   N C C C P N C
Bindweed, Field C C C P P N C C N N C N P P N
Dallisgrass C N C C N C N P C N N N C
Dandelion C C C N N C C N N C C N P N
Dock, Curly C C P C C C N N C C C N
Johnsongrass C N N C C C C N C C C N C N C
ESTABLISHED PERENNIALS
Asparagus N N N N N     N N P N N N
Bermudagrass N N N N N N N N P P C N P N P
Bindweed, Field N N N C P N N N P N N P N P P N
Blackberries N N N N N N N N C N N N N
Catsear, Common N N N N N N N P N N N
Clovers P N N P C N N P N N P N
Dallisgrass N N N N N N N N P C N N N N
Dandelion N N C N N N N N N C N N P N
Dock, Curly N N N N N N N N P N N N
Johnsongrass N N N N N N N N P C N N N N
Nutsedge, Yellow N P P N N N N N N N N P N N N N
Poison-Oak, Pacific N N N N N N N C N N N
Smartweeds C N N C N N C N N N
Sorrel, Red N N N N N N P N N N
Susceptibility of Winter Weeds to Herbicide Control
Customize LIST OF WEEDSPREEMERGENCE     POSTEMERGENCE
  DIU FLM ISO IND ORY OXY PEN SIM CAR CLE FLU GLY OXY PAR* PYR SET
Mode of Action1 7 14 21 29 3 14 3 5 14 1 1 9 14 22 14 1
ANNUAL GRASSES
Barley, Hare C N C C P C C     N C C C P C N C
Bluegrass, Annual C N C C P C C N P N C P C N N
Bromegrasses C N C C P C C N C C C N C N C
Canarygrass C N C P C N C C C N C N C
Oat, Wild P C N C P P P C N C C C N C N C
Polypogon, Rabbitfoot C C P C N C C C C N C
Ryegrass, Italian C N C C P C C N C C C N C N C
ANNUAL BROADLEAVES
Chickweed, Common C C C C C P C C     P N N C P C P N
Clovers P P N P N P N N C P P P N
Fiddlenecks C C C C C C C C C N N C C C N
Filarees C C C C N C N C N N P C C N N
Groundsel, Common N C C C P C N C N N C C C N N
Henbit C C C P P C C C N N C C C P N
Lettuce, Miner's C C C C C C N N C C C N
Mustards C C C C N C N C P N N C P C P N
Nettles C C C C P C N C C N N P C P P N
Pineappleweed P C N C N C N N N C P P N
Radish, Wild C C N C N C P N N C P P N
Redmaids C C C C C C N N C C C P N
Rocket, London C C C P C P C C N N C C C P N
Shepherd's-Purse C C C C N C P C P N N C P C P N
Sowthistles C C C C P C N C N N N C C C P N
C= control    P= partial control    N= no control    = no information
Herbicide Mode of
action
     Herbicide Mode of
action
CAR = carfentrazone (Shark) 14 ORY = oryzalin (Surflan) 3
CLE = clethodim (Select Max) 1 OXY = oxyfluorfen (GoalTender) 14
DIU = diuron (Karmex, etc.) 7 PAR = paraquat* (Gramoxone Inteon) 22
FLM = flumioxazin (Chateau) 14 PEN = pendimethalin (Prowl H2O) 3
FLU = fluazifop-p-butyl (Fusilade) 1 PYR = pyraflufen-ethyl (Venue) 14
GLY = glyphosate (Roundup, etc.) 9 SET = sethoxydim (Poast) 1
ISO = isoxaben (Gallery) 21 SIM = simazine (Princep, etc.) 5
IND = indaziflam (Alion) 29    
* Permit required from county agricultural commissioner for purchase or use.
1 Group 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. For more information, see http://www.hracglobal.com.

[Precautions]

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Olive
UC ANR Publication 3452

Weeds

B. D. Hanson, Weed Science and Plant Sciences, UC Davis
Acknowledgment for contributions to Weeds:
C. L. Elmore, Weed Science and Plant Sciences, UC Davis
D. W. Cudney, Botany and Plant Sciences, UC Riverside
D. R. Donaldson, UC Cooperative Extension, Napa County
W. T. Lanini, Weed Science and Plant Sciences, UC Davis

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