How to Manage Pests

UC Pest Management Guidelines

Susceptibility of Spring/Summer Weeds to Herbicide Control

Customize list of weeds   ANNUAL WEEDS barnyardgrass chickweed, common crabgrasses fleabane, hairy foxtails goosefoot, nettleleaf horseweed junglerice knotweed, common lambsquarters, common lettuce, prickly mallow, little nettle, burning nightshades pigweeds puncturevine purslane, common sandburs sowthistles sprangletops thistle, Russian PERENNIAL SEEDLINGS bermudagrass bindweed, field dallisgrass johnsongrass PERENNIAL PLANTS bermudagrass bindweed, field blackberries dallisgrass dandelion dock, curly johnsongrass nutsedge, yellow

Preemergent ISO NAP NOR ORY OXY PEN SIM TRI N C C C P C P C C C P C P C C C N C C C P C N C C N P N P N C N N C C C N C C C C C C C C P C C C N P N P N C N C C C C P C P C C C P C C C C C C C P C C C C C C C P N C N C N C P C N C P N P C P C P C C C N C N C N C P C N C C P C C C C C C P C P P P P P C C C C C C C C N C P C N C N C C C P N C N C N N P P P P N P P C C C P P P C P                 N C C C N C P C C N N C C P N C N P C C N C C C N P C P N P P C                 N N P N N N N N C N N P N N N P - N N N N N N N N N N N N N N N C N N N N N N N N N N N N N N N N N N N N N N P N N P N N N N N

Postemergent GLY OXY PAR* SET 24D* C N P C N C P C N P C P C C N C P P N C C N C C N C P C N C C P P N C C N P C N P P P N N C C P N C C C P N C P C N N N N P P N N C C C N N C C C N N C P C N N C C C N N C N P C C C C P N N C P P P N C P C N N           C P C C N C C C N C C N N N N C N C C P           C N P P N P N P N P C N N N P C N N P N P N N N C P N N N C C N N P N P N N N P

ANNUAL WEEDS barnyardgrass chickweed, common crabgrasses fleabane, hairy foxtails goosefoot, nettleleaf horseweed junglerice knotweed, common lambsquarters, common lettuce, prickly mallow, little nettle, burning nightshades pigweeds puncturevine purslane, common sandburs sowthistles sprangletops thistle, Russian PERENNIAL SEEDLINGS bermudagrass bindweed, field dallisgrass johnsongrass PERENNIAL PLANTS bermudagrass bindweed, field blackberries dallisgrass dandelion dock, curly johnsongrass nutsedge, yellow

Ratings Legend

C

= control

P

= partial control

N

= no control

-

= no information

Chemical Legend

24D* = 2,4-D* (Orchard Master) GLY = glyphosate (Roundup) ISO = isoxaben (Gallery) NAP = napropamide (Devrinol) NOR = norflurazon (Solicam) ORY = oryzalin (Surflan)

OXY = oxyfluorfen (Goal) PAR* = paraquat* (Gramoxone) PEN = pendimethalin (Prowl) SET = sethoxydim (Poast) SIM = simazine (Princep) TRI = trifluralin (Treflan)

Comments

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

1   At rates used for annual weeds, control of perennials is less than expected with high label rates.

PUBLICATION

UC IPM Pest Management Guidelines: Almond
UC ANR Publication 3431
Weeds
Anil Shrestha, UC IPM Program, Kearney Agricultural Center, Parlier
Joseph Connell, UC Cooperative Extension, Butte Co.
Acknowledgment for contributions to the weed section:
T. S. Prather, Department of Plant, Soil, and Entomological Sciences, University of Idaho

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