Annual Grass and Broadleaf Weeds

dimethenamid-P (Outlook)

Dry bean classes such as black turtle, cranberry, dry lima, great northern, navy, pink, pinto, red kidney , red Mexican, and small whites

Rate 0.56 to 0.98 lb ai/a (12 to 21 fl oz/a Outlook 6EC)

Time Apply preplant surface, preplant incorporated, preemergence, or early postemergence (first to third trifoliate leaves).

Remarks Application rate depends on soil texture and organic matter content. Before applying Outlook, verify with your local seed company the selectivity of Outlook on your specific dry bean class and variety. May be applied preplant surface, preemergence, or early postemergence (first to third trifoliate stage). Effective for controlling hairy nightshade, but weak on common lambsquarters. Will not control emerged weeds. Outlook may be applied in a single application up to 21 fl oz/a or used in split applications of 10 to 14 fl oz/a followed by 7 to 11 fl oz/a, but total application amount cannot exceed 21 fl oz/a. Preplant incorporated applications may be applied up to 2 weeks before planting, however the effectiveness controlling weeds in the crop is shortened. Incorporate 1 to 2 inches deep. May be tank mixed with other dry-bean herbicides including bentazon, sethoxydim, pendimethalin, imazethapyr, glyphosate, and paraquat. S-metolachlor may only be applied sequentially with Outlook. May be applied through most sprinkler irrigation systems, but check label for limitations. Outlook applied postemergence may occasionally cause some temporary leaf spotting, browning or stunting. Restricted entry interval (REI) is 12 hours.

Caution Outlook is not registered for use in succulent (garden) beans or cowpeas. Growth may be temporarily suppressed if heavy rain falls, or if soil is saturated for long periods during bean germination or early seedling development. Avoid incorporating more than 1 or 2 inches deep; weed control may be reduced and/or the crop may be injured.

Site of action Group 15: inhibits very long chain fatty acid synthesis

Chemical family Chloroacetamide

EPTC (Eptam 7EC)

Dry beans only

Rate 1.97 to 4 lb ai/a (2.25 to 4.5 pints/a Eptam 7EC)

Time Apply preplant and incorporate, or apply as a directed spray at layby and shallowly incorporate.

Remarks Before applying Eptam 7E to untested varieties, verify with your local seed supplier the selectivity of Eptam 7E on your specific dry bean class and variety. If incorporating, Eptam may be applied at 3.5 to 4.5 pints/a, and thoroughly incorporated 2 to 3 inches deep immediately after applying. As a subsurface application, apply 2.25 pints/a. As a layby directed application, apply 3.5 to 4.5 pints/a to the soil at the base of the bean plants before pod formation. Eptam gives good general weed control for about six weeks as well as early-season control of hairy nightshade and suppression of yellow nutsedge and quackgrass. However, on some PNW fields, effective control may be shorter. These fields have a history of continued thiocarbamate herbicide use. Eptam also can be metered into furrow irrigation water before weeds emerge. Eptam may be tank mixed with ethalfluralin, S-metolachlor, pendimethalin, trifluralin, or dimethenamid-P. During germination and early growth, extended periods of unusually cold and wet or hot and dry weather, as well as insects, nematodes, plant diseases, carry-over soil residues of certain persistent herbicides, the use of certain soil applied systemic insecticides, highly saline or alkaline soil conditions, or improperly placed fertilizers or soil-applied insecticides may create abnormal conditions that weaken crop seedlings. Used under these abnormal conditions, Eptam could result in crop injury. Restricted entry interval (REI) is 12 hours.

Caution Do not apply before pre-irrigation. Do not apply to Adzuki beans, cowpeas, lima beans, soybeans, Mung beans, Garbanzo beans, or other flat-podded beans except Romano. Do not feed bean hay, vines, or forage to livestock. Do not graze livestock in treated bean fields within 45 days of application. Cold, wet soils after planting may delay crop maturity or reduce yields. Do not exceed 9 pints/a Eptam in one season.

Site of action Group 8: lipid synthesis inhibitor but not an ACCase inhibitor

Chemical family Thiocarbamate

EPTC (EPTAM 20G)

Dry beans only

Rate 3.0 to 4.0 lb ai/a (15 to 20 lb/a Eptam 20G)

Time Apply and incorporate just before planting, immediately after planting, or at the time of last cultivation. If applied before planting, rotary hoe during or shortly after emergence of the beans to break any crust that occurs. If applied at the time of last cultivation, apply to the soil before bean pods start to form.

Remarks Do not exceed the 15 lb/a rate on small white beans or on green beans grown on coarse-textured soils. Eptam 20G can be incorporated with irrigation water. Incorporate immediately using flood or sprinkler irrigation systems. Apply enough water to wet soil to a minimum of 3 to 4 inches deep. During germination and early growth, extended periods of unusually cold and wet or hot and dry weather, as well as insects, nematodes, plant diseases, carry-over soil residues of certain persistent herbicides, the use of certain soil applied systemic insecticides, highly saline or alkaline soil conditions, or improperly placed fertilizers or soil-applied insecticides may create abnormal conditions that weaken crop seedlings. Used under these abnormal conditions, Eptam 20G could result in crop injury. Restricted entry interval (REI) is 12 hours.

Caution Do not apply to Adzuki beans, cowpeas, lima beans, soybeans, Mung beans, Garbanzo beans, or other flat-podded beans except Romano. Do not feed or pasture vines to livestock within 45 days after application.

Site of action Group 8: lipid synthesis inhibitor

Chemical family Thiocarbamate

ethalfluralin (Sonalan)

Rate 0.56 to 1.69 lb ai/a (1.5 to 4.5 pints/a Sonalan 3EC)

Time After the final tillage operation, preplant applications should be incorporated within 48 hours after application. Preemergence applications must be applied within 2 days after planting and prior to crop emergence.

Remarks Application rate depends on soil type, amount of organic matter, and whether nightshade is to be controlled. Incorporate herbicide uniformly into top 2 to 3 inches of soil. Excessive amounts of crop residue or weeds may interfere with the incorporation of Sonalan HFP into the soil. To control nightshade, use higher rate and make two incorporation passes. Sonalan may be tank mixed with EPTC (but not on lima beans) or s-metolachlor. When impregnated on dry bulk fertilizer, Sonalan HFP must be incorporated two times. Sonalan may be applied to dry beans by chemigation. See label for specific chemigation guidelines. Restricted entry interval (REI) is 24 hours.

Caution Do not apply to soils that are wet, cloddy, or subject to prolonged flooding; poor weed control or crop injury may result. If crop fails, replant only crops listed on label. Do not plant sugar beets or red beets within 13 months after applying 3 pints/a or more. If less than 3 pints/a were used, sugar beets and red beets may be planted 8 months after application if field is moldboard-plowed at least 12 inches deep before planting. Do not cut for hay or forage or graze livestock.

Site of action Group 3: microtubule assembly inhibitor

Chemical family Dinitroaniline

glyphosate (several trade names)

Rate 0.75 to 1.5 lb ae/a (22 to 44 fl oz/a Roundup PowerMax 4.5SL)

Time Apply to weeds in seedling growth stage before planting, or before beans emerge or as a preharvest application.

Remarks Be aware that glyphosate is formulated as 3 lb, 4 lb, 4.17 lb, 4.5 lb, and 5 lb ae/gal. Take care to ensure using the correct amount of herbicide. Use highest rates on field bindweed. Delay applying to allow maximum weed emergence but apply before beans emerge. Glyphosate will not control weeds that emerge after application. Rain within 6 hours after application may reduce effectiveness of some brands. Other brands are rainfast in 1 hour. Some products require the addition of a nonionic surfactant (NIS). Be sure to check the label. Addition of ammonium sulfate (AMS) at 1 to 2% by weight or 8.5 to 17 lb/100 gal spray solution may increase the performance particularly with hard water or spraying during drought conditions. Time to rainfast varies with glyphosate product. See label for specific information. Restricted entry interval (REI) is 4 or 12 hours depending on the glyphosate product used.

Caution Glyphosate applied after crop emerges will injure or kill the crop. Do not apply if weed is stressed by drought, weather, or maturity. Do not plant subsequent crops other than those on label for 30 days after applying. Do not feed or forage treated crops within eight weeks after applying.

Site of action Group 9: inhibits EPSP synthase

Chemical family Glycine

glyphosate + S-metolachlor (Sequence)

Rate 1.64 to 2.625 lb ai/a (2.5 to 4 pints/a Sequence 5.25EW)

Time Apply before, during or after planting, but prior to crop emergence

Remarks Weed control may be improved by adding ammonium sulfate (AMS) at 8.5 to 17 lb/100 gal spray solution). If heavy rainfall occurs soon after application, crop injury may occur. Injury will be greatest in poorly drained areas where water stands for several hours or days, or where the seeding slit has not been properly closed. If available, beans grown under sprinkler irrigation may benefit from 0.5 to 1 inch of water, but do not water soon after application. Use less water on lighter soils. If irrigation is not possible or rain does not occur within 2 days after application, weed control may be decreased. Sequence Herbicide may be tank-mixed with pendimethalin or additional S-metolachlor or glyphosate. Heavy rainfall or irrigation shortly after application may require re-treatment. Restricted entry interval (REI) is 24 hours.

Caution Do not exceed 3.5 pt/a on coarse soils. Do not cut Sequence-treated dry beans for hay within 120 days following application. Do not graze or feed for age from treated area. Do not apply through any irrigation system.

Site of action (glyphosate) Group 9: inhibits EPSP synthase, and (s-metolachlor) Group 15: inhibits very long chain fatty acid synthesis.

Chemical family (glyphosate) Glycine; (s-metolachlor) chloroacetamide

halosulfuron (Sandea)

Rate 0.023 to 0.031 lb ai/a (0.5 to 0.66 oz/a Sandea 75DF)

Time Apply preemergence (after planting but prior to soil cracking) or postemergence when plants have 1 to 3 trifoliate leaves, but before flowering. Weed size should be less than, or up to 6 inches.

Remarks Use lower rate on lighter texture soil with low organic matter. Activating soil moisture is necessary for optimum preemergence weed control. Include a nonionic surfactant (NIS) at 0.25 to 0.5% v/v (1 to 2 quarts/100 gal of spray solution) when weeds are present. Sandea may be tank-mixed for additional broadleaf control. It can also be tank-mixed with quizalofop or other graminicides for postemergence grass control. Restricted entry interval (REI) is 12 hours.

Caution Do not apply more than 2 applications of 0.66 oz/a per crop cycle or 2 oz/a per 12-month period. Refer to label for rotational crop restrictions.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Sulfonylurea

imazamox (Raptor)

Dry beans only

Rate 0.031 lb ae/a (4 oz/a Raptor 1SC)

Time Apply postemergence to actively growing weeds and dry beans with at least one full, expanded trifoliate leaf and before bloom.

Remarks Raptor may be applied to Adzuki, Anasazi, black, black turtle, cranberry, Great Northern, lima (dry), navy, pink, pinto, red kidney, small red, and small white. Growers should check with the seed company regarding the safety of Raptor to their variety. Weed control may be improved by adding 12 to 15 lb ammonium sulfate (AMS) or 2.5 gal liquid fertilizer (28% or 32% N) per 100 gal spray solution. If using crop oil concentrate (COC) or nonionic surfactant (NIS), Basagran must be added at 6 to 16 oz/a to minimize crop response. Raptor application must be made before dry beans flower. Only one Raptor application may be made per season. Rainfast 1 hour after application. Restricted entry interval (REI) is 4 hours.

Caution Do not apply Raptor to chickpeas (garbanzo beans), fresh lima beans, or lentils. Some varieties of edible legumes are more sensitive to Raptor, and Raptor may delay crop maturity. Do not apply Raptor if planting is delayed and chance of frost prior to maturity is likely. Adding nitrogen-based fertilizer or adjuvants may increase crop response. See label for crop rotation guidelines. Recommended rotation interval of 18 months for potato and 26 months for sugar beets.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Imidazolinone

imazamox + bentazon (Varisto)

Dry beans only

Rate 0.523 to 0.686 lb ai/a (16 to 21 fl oz/a product)

Time Apply to actively growing weeds, and postemergence to dry beans with at least one fully expanded trifoliate leaf and before bloom.

Remarks Raptor may be applied to Adzuki, Anasazi, black, black turtle, cranberry, faba, Great Northern, lima (dry), navy, pink, pinto, red kidney, small red, and small white beans. Growers should check with their seed company regarding the safety of imazamox (Raptor) to their variety. An adjuvant, such as methylated seed oil (MSO), crop oil concentrate (COC), or nonionic surfactant (NIS) and a nitrogen fertilizer, such as urea ammonium nitrate (UAN) or ammonium sulfate (AMS) must be used with Varisto. MSO, COC, or NIS is recommended at 1% v/v (1 gallon/100 gal spray solution), 1 to 2% v/v (1 to 2 gal/100 gal spray solution) or 0.25% v/v (1 quart/100 gal spray solution). AMS is recommended at 12 to 15 lb/100 gal spray solution and UAN (28% or 32% N) is recommended at 2.5 gal/100 gal spray solution. Application must be made before dry beans flower. Only one Varisto application may be made per season. Rainfall or overhead irrigation within 4 hours after application may reduce the effectiveness. Do not apply within 30 days of harvest. Restricted entry interval (REI) is 48 hours.

Caution Do not apply Varisto to chickpeas (garbanzo beans), fresh lima beans, or lentils. Some varieties of edible legumes are more sensitive to Varisto, and Varisto may delay crop maturity. Do not apply Varisto if planting is delayed and chance of frost prior to maturity is likely. Adding nitrogen-based fertilizer or adjuvants may increase crop response. See label for crop rotation guidelines. Recommended rotation interval of 18 months for potato and 26 months for sugar beet.

Site of action (imazamox) Group 2: acetolactate synthase (ALS) inhibitor; (bentazon) Group 6: photosystem II inhibitor

Chemical family (imazamox) Imidazolinone; (bentazon) Benzothiadiazole

imazethapyr (Pursuit)

Lima beans only

Rate 0.047 lb ai/a (3 fl oz/a Pursuit 2LC)

Time Apply preplant incorporated in spring or preplant for no-till or minimum tillage systems only.

Remarks If incorporated, apply Pursuit at 3 fl oz/a within 1 week before planting and do not incorporate deeper than 3 inches. Pursuit may be applied in the fall prior to spring planting. Rainfall is required for incorporation and activation. If applied in the fall, wait until 4-inch soil depth is less than 55°F. Apply preplant incorporated in spring within 1 week before planting. Do not incorporate deeper than 3 inches. Preemergence application may be made after planting but before crop emergence. Pursuit is not labeled for postemergence applications in lima beans. Wheat may be planted four months after applying. Barley may be planted 9.5 months after applying. Restricted entry interval (REI) is 4 hours.

Caution Do not apply if cold and/or wet conditions are present or predicted within 1 week of application. Alfalfa, clover, edible beans, and wheat may be planted four months after application. Field corn and barley cannot be planted for 8.5 and 9.5 months, respectively after application. Potatoes and sugar beets cannot be planted for 26 and 40 months, respectively after application. See label for other crop rotation guidelines. Do not feed treated forage, hay, or straw to livestock. Do not apply postemergence after crop has begun to flower.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Imidazolinone

pendimethalin (Prowl and other trade names)

Rate 0.95 to 1.43 lb ai/a (2 to 3 pints/a Prowl H2O 3.8AS)

Time Apply preplant, and incorporate up to 60 days before planting under furrow or sprinkler irrigation. Under sprinkler irrigation only, may apply 2 pints/a postplant, preemergence within 1 to 4 days of planting.

Remarks Be aware that pendimethalin is formulated as 3.3 lb ai/gal and 3.8 lb ai/gal. Dry beans must have a minimum planting depth of 2 inches. Applications must be immediately followed by 0.5 to 0.75 inch water from overhead irrigation and/or rainfall. Application rate depends on soil type and amount of organic matter. Incorporate preplant applications 1 to 2 inches deep within 7 days of application. Refer to label for suitable incorporation equipment. Growers should check with their local seed company for varieties sensitive to Prowl H2O. Restricted entry interval (REI) is 24 hours.

Caution Cold, wet soils after planting may delay crop maturity or reduce yields. If crop is lost, crops labeled for preplant-incorporated pendimethalin may be replanted. Winter wheat and winter barley can be planted 120 days after applying. Do not plant red beets, sugar beets, or spinach for 12 months after applying pendimethalin. Plow 12 inches deep before planting. Do not feed bean hay or vines to livestock or graze livestock in treated fields.

Site of action Group 3: microtubule assembly inhibitor

Chemical family Dinitroaniline

S-metolachlor (Dual Magnum or Dual II Magnum)

Rate 0.96 to 1.9 lb ai/a (1 to 2 pints/a Dual II Magnum 7.64EC or Dual Magnum 7.62EC)

Time Apply preplant incorporated or preemergence.

Remarks Apply at 0.95 to 1.26 lb ai/a on coarse soils with less than 3% organic matter, 1.26 to 1.59 lb ai/a on medium soils, 1.26 to 1.59 lb ai/a on fine soils with less than 3% organic matter, or 1.59 to 1.9 lb ai/a on fine soil with greater than 3% organic matter. Pod crops, including garbanzo, great northern, kidney, lima, mung, navy, pinto, snap beans and lupines may be treated with S-metolachlor. Incorporation into top 2 inches of soil is required. Under furrow irrigation, apply and incorporate before planting. When applied through center-pivot irrigation systems, apply proper rate in 0.5 to 1 inch of water (depending on soil type). Preplant-incorporated treatments will control yellow nutsedge. S-metolachlor may be tank mixed with EPTC (but not on lima beans), ethalfluralin, or trifluralin. Restricted entry interval (REI) is 24 hours.

Caution Crops may be injured if soil moisture is abnormally high during early crop development. If crop fails, beans, corn, potatoes, or safflower may be planted. Do not plant small grains for 4.5 months after treatment. Corn, potatoes, safflower, pod crops, root crops, barley, oats, rye, or wheat may be planted the spring after treatment. All other rotation crops may be planted 18 months later. Do not cut for hay within 120 after application or use for forage within 60 day of application. Do not apply more than 2 pints/a during any one crop year.

Site of action Group 15: inhibits very long chain fatty acid synthesis

Chemical family Chloroacetamide

trifluralin (several trade names)

Rate 0.5 to 1 lb ai/a for dry beans (1 to 2 pints/a trifluralin 4EC); 0.5 to 0.75 lb ai/a for lima beans (1 to 1.5 pints/a trifluralin 4EC)

Time Apply to dry soil and incorporate either in fall, between October 15 and December 31, or just before planting in spring. If spring applied, apply prior to planting, or immediately after planting and before crop germination. Trifluralin may be applied and incorporated at or before the last cultivation as long as it is 90 days before harvest.

Remarks Rate depends on soil type, amount of organic matter and rain. Incorporate thoroughly into soil 2 to 3 inches deep as soon as possible, but no later than 24 hours after applying. Trifluralin may be tank mixed with other herbicides registered for use in dry beans and lima beans. Trifluralin is susceptible to photodegradation; incorporation soon after application is best. Restricted entry interval (REI) is 12 hours.

Caution Do not apply to soils that are wet, cloddy, or subject to prolonged flooding; poor weed control or crop injury may result. Do not plant sugar beets, red beets, corn, oats, or spinach for 12 months after spring application or 14 months after a fall application. Plow 12 inches deep before planting sugar beets to prevent possible crop injury. Do not plant vegetable crops other than those listed on label within 5 months after application.

Site of action Group 3: microtubule assembly inhibitor

Chemical family Dinitroaniline