Herbicide label

Chateau SW

Chateau SW (EPA 59639-99) is a Group 14 flumioxazin herbicide labeled for 22 crops. The label lists 94 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Chateau SW label facts

Product Chateau SW
EPA Reg. No. 59639-99
Registrant Valent U. S. A. LLC
Active ingredient flumioxazin
MOA group 14

Crops on the Chateau SW label

Chateau SW is labeled for these 22 crops and uses, per the EPA label.

field corn
wheat
cotton
sunflower
potato
barley
sorghum
rice
alfalfa
clover
dry edible bean
chickpea
cowpea
lentil
mint
sweet potato
fallow
field pea
flax
safflower
spring wheat
durum wheat

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Weeds on the Chateau SW label

The Chateau SW label names 106 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.

Controls

full control94

amaranth, palmer
amaranth, spiny
anoda, spurred
barnyardgrass, common
beggarweed, florida
bluegrass, annual
volunteer canola
carpetweed
chamomile, false
chickweed, common
chickweed, mouseear
cockle, white
copperleaf, hophornbeam
crabgrass, large
crabgrass, smooth
crownbeard, golden
croton, tropic
dandelion
deadnettle, purple
eclipta
eveningprimrose, cutleaf
fiddleneck
filaree, redstem
filaree, whitestem
fleabane, hairy
flixweed
foxtail, bristly
foxtail, giant
foxtail, green
foxtail, yellow
carolina geranium
goosegrass
groundsel, common
groundsel, cressleaf
guineagrass
henbit
horseweed
indigo, hairy
jimsonweed
johnsongrass, seedling
kochia
lambsquarters, common
lovegrass, california
mallow, common
mallow, little
mallow, venice
mayweed
morningglory, entireleaf
morningglory, ivyleaf
morningglory, scarlet
morningglory, smallflower
morningglory, tall
mustard, tansy
mustard, tumble
mustard, wild
nettle, burning
nightshade, black
nightshade, eastern black
nightshade, hairy
panicum, fall
panicum, texas
pennycress, field
pigweed, redroot
pigweed, smooth
pigweed, tumble
poinsettia, wild
prickly lettuce
puncturevine
purslane, common
purslane, horse
pusley, florida
radish, wild
ragweed, common
redmaids
redweed
rocket, london
rocket, yellow
ryegrass, italian
senna, coffee
sesbania, hemp
shepherd's-purse
sida, prickly
signalgrass, broadleaf
smartweed, ladysthumb
smartweed, pennsylvania
smellmelon
sowthistle, annual
sowthistle, prickly
spurge, spotted
starbur, bristly
thistle, russian
velvetleaf
waterhemp, common
wormwood, biennial

Suppression

suppression5

brome, downy
buckwheat, wild
cheat
dodder
ragweed, giant

Controls with a tank-mix partner

needs partner7

bindweed, field
cocklebur, common
flatsedge, rice
morningglory, pitted
plantain, broadleaf
sicklepod
smartweed, pale

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Chateau SW rates and plant-back

The label answers both with a table, not a single number. Here is what drives each answer.

Application rate

Your rate depends on your crop and your soil texture.

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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in AZ, CA, CO, DE, FL, HI, ID, MD, MN, MT, NC, ND, NE, NJ, NM, NV, OR, SC, SD, TX, UT, VA, WA, and WY.

Get the interval for your rotation: build a program and FieldMarshal cites the exact plant-back for your rotational crop to the label line.

Chateau SW FAQ

What weeds does Chateau SW control?

The Chateau SW label names 106 weeds, including palmer amaranth, spiny amaranth, spurred anoda, common barnyardgrass, florida beggarweed, and annual bluegrass. Control varies by crop, rate, and timing.

What crops is Chateau SW labeled for?

Chateau SW is labeled for 22 crops and uses, including field corn, wheat, cotton, sunflower, and potato.

What is the active ingredient in Chateau SW? Is it a generic?

Chateau SW's active ingredient is flumioxazin (MOA Group 14). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

What's the plant-back interval after Chateau SW?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.

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Can I tank-mix Chateau SW?

It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and cites the condition on each, so you can verify it.