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Spartan herbicide strawberries

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Effective mixes include a primarily grass herbicide (Devrinol, Dual Magnum, Prowl H2O) and a primarily broadleaf herbicide (Spartan, Ultra Blazer). Read labels to determine which weeds will be controlled for your situation. Sinbar is a very effective herbicide, but may stunt strawberry on light sandy soil Spartan 4F. Group 14. 4 - 8 oz: Apply prior to planting or just after planting but before new growth appears. May cause severe damage to new growth. Strawberry varieties vary in sensitivity. Provides control of many broadleaf weeds, including field pansy, groundsel and nutsedge. PREEMERGENCE WEED CONTROL; Annual grasses and small seeded. Weed Control Update in Strawberry. Preplant herbicides Herbicide Rate Planting restriction Chateau 3 oz 30 days Spartan 4 to 8 oz None Goal 1 pt 30 days Devrinol 8 lb None Yellow Purple Spartan Chateau, Spartan, and Goal Henbit Nutsedge Mouseear and common chickweed Chateau, Spartan, and Devrinol Carolina geranium Curly dock Goal Corn spurry. Spartan Charge herbicide features two active ingredients for reliable contact and residual weed control. It also offers tank-mix flexibility with glyphosate, paraquat and glufosinate herbicides. Labels and SDS. Specimen Label. 12-07-17. 24(c) Registration

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  1. This herbicide may cause some epinastic symptoms on the first leaves regrowing from strawberry plants. Aim (carfentrazone), Gramoxone (paraquat), as well as acetic acid and other natural herbicides. Apply only between strawberry rows to actively growing weed seedlings; any herbicide that contacts the crowns can damage non-dormant strawberry plants
  2. Pre-Plant Burn Down Herbicides for Strawberries Herbicide Weeds Controlled Rate/Acre Comments Goaltender 2XL Many annual broadleaf weeds. 1-2 pt Must be applied at least 30 days prior to transplanting. The soil must be worked to a depth of at least 2.5 inches prior to transplanting the crop. No control is provided after the crop is planted
  3. Spartan Splash • June 14, 2017 the field sprayed post over the top with 2 oz/A Spartan 4F + 1.5 pts/A Prowl H. 2. 0 - The spartan rate is ½ recommended • Field was planted June 21, 2017 - Planting temperature was 76 - Following days were 85, 92, 99, and 101 - Watered (several inches) to compensat
  4. mowing. There are no registered herbicides to control these weeds in strawberries. The active ingredient in Spartan 4F® is sulfentrazone. It is manufactured by FMC Corp. Spartan 4F® is already registered for use on strawberries and other crops in Wisconsin, but it is labeled only for use before planting strawberries
  5. Spartan 4F may be applied to the soil before transplanting strawberry in the spring, or over the top of the plants after transplanting. Spartan 4F may be applied to strawberry at renovation or after dormancy in the fall. The maximum use rate is 8 fl. oz. (0.25 lb. ai) per application, and 12 fl. oz. (0.375 lb. ai) per acre per year
  6. • Strawberry injury in March, 2015 was high with Fierce and Treevix + Chateau • Depending on the year, weed control was fair to excellent through harvest with most combinations • Berry size and yield were fairly similar among treatments (2015 was a bad year) - Generally greater with Treevix or Trellis with Spartan or Sinba
  7. After spraying Spartan 4F Herbicide and before using sprayer equipment for any other application, the sprayer must be 24(c) Special Local Need Label For Use on Strawberries. FOR DISTRIBUTION AND USE ONLY IN OREGON . FMC Corporation 2929 Walnut Street Spartan and - are FMC Trademark

•Strawberry injury in March, 2015 was high with Fierce and Treevix + Chateau •Depending on the year, weed control was fair to excellent through harvest with most combinations •Berry size and yield were fairly similar among treatments (2015 was a bad year) -Generally greater with Treevix or Trellis with Spartan or Sinba strawberries. Dual Magnum, Prowl and Spartan have potential preemergence activity in of new weed control products in strawberry production, especially pertaining to matted-row production. Table 1. Common chickweed control in strawberries receiving Chateau herbicide a

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Spartan Herbicide is a selective soil-applied herbicide for the control or partial control of susceptible broad leaf. grass and sedge v.reeds. Spartan Herbicide is formulated as a 75% water dispersible granule containing the active ingredient, sUlfentrazone. If adequate moistur New herbicide label for strawberry. The Michigan Department of Agriculture and Rural Development approved a State and Local Need (SLN) label (Section 24c) for use of Spartan 4F on strawberry in Michigan. The language of the new label is similar to the language in the Section 18 emergency labels that we have had for the past five years Late winter or early spring after the soil has thawed and winter annual broadleaf weeds have broken dormancy, but before strawberries begin to grow, is a key time for herbicide application. Apply 2,4-D amine, Formula 40 or other labeled 2,4-D formulations, in late winter or early spring to control emerged winter annual broadleaf weeds Do not apply more than the allowed amount of Spartan FL 4F Herbicide per acre per twelve-month period as stated in Table 3. The twelve-month period is considered to begin upon the initial Spartan application. For any requirements specific to your State or Tribe, consult the Agency responsible for pesticide regulation. AGRICULTURAL USE REQUIREMENT Weed Control in Strawberry - New Plantings Devrinol: 3-4 lb/ai - apply after transplant Sinbar: 0.1-.3 lb/ai - 2-6 oz after transplanting Spartan: 4-8 fl oz before or after transplanting Prowl H20: 0.71 - 1.4 lb/ai (1.5-3 pt) before or after transplanting - annual grasse

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Spartan 4F is a selective soil-applied herbicide for the control of certain broadleaf weeds, grasses and sedges. Spartan 4F is a suspension concentrate formulation containing 4 pounds of the active ingredient, sulfentrazone, per gallon. The mode of action of Spartan 4F involves uptake by weed roots and shoots Applications to strawberry plants with new emerged growth are not recommended due to leaf burning and possible stand loss. After spraying Spartan 4F Herbicide and before using sprayer equipment for any other application, the sprayer must be thoroughly cleaned using the procedure on the EPA label. Failure to remove even small amounts o 11 Spur (clopyralid); selective postemergent broadleaf herbicide. Use after harvest to control Canada thistle and other broadleaf perennials and some annuals. Only one application per season. 12 Spartan (sulfentrazone); preemergent selective herbicide. Use before or just after planting, but before new growth emerges Weed Control Update in Strawberry Herbicide Options: 1. Spartan preplant 4 to 8 oz/A. 2. Better on yellow than purple. Henbit Herbicide Options: 1. Chateau 3 oz/A applied to preformed bed prior to laying plastic. 2. Spartan 4 to 8 oz/A applied to preformed bed prior to laying plastic

For broad-spectrum, full-season weed control, include two residual herbicides in the post-renovation application. Effective mixes include a primarily grass herbicide (Devrinol, Dual Magnum, Prowl H2O) and a primarily broadleaf herbicide (Spartan, Ultra Blazer). Read labels to determine which weeds will be controlled for your situation Impact of herbicides on strawberry growth and yield . None of the herbicides had an impact on strawberry growth or yield. However, a word of caution is that tended to be smaller where Goal 2XL and Spartan 4F were applied. Squash yields were 24 and 27% lower where Goal 2XL and Spartan 4F were applied, respectively. The differences were not.

nutsedge into strawberry beds, applied sulfentrazone (Spartan 4F at 0.25 lb a.i. /acre) and laid clear mulch 30 days prior to transplanting. Sulfentrazone did not injure strawberry but did not prevent nutsedge germination from tubers or nutlets. Furrow weed control. A large scale RCB study with three replication at Camarillo, CA compare But, without chemical herbicides, if you want to haul in loads of fruit come harvest, it is absolutely essential that you keep on top of the weeds. There is an organic herbicide labeled for use with growing strawberries called GreenMatch Ex, but its use alone will not be sufficient to completely control the weeds

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Combinations of Sinbar, Spartan or Ultra Blazer with Prowl H2O provide a broad spectrum of weed control. None of these combinations will provide adequate control of perennial weeds. After the new shoots have been established and the strawberry plants are regrowing, Stinger may be applied to kill emerged composites, legumes, nightshade. EPA has just approved a supplemental label for Sinbar use on strawberries. Last year DuPont announced that it was canceling the use of Sinbar on strawberries, leaving only 5 registered herbicides for this crop. However, a label with lower use rates has been accepted. This change should alleviate injury problems that occasionally occurred in the past

The Michigan Department of Agriculture has approved a Special Local Needs (SLN) label, also known as a Section 24c label, for the use of Spartan 4F on strawberry. Strawberry is on the Spartan Section 3 label, but that label does not include use at renovation. Michigan had a similar 24c label previously, but the label expired in 2016. This new 24c label is effective until Dec. 31, 2023 View the product label for Spartan Elite from FMC Corporation. See active ingredients, product application, restrictions, and more. Herbicide, Preplant/Preplant Incorporated (703), Herbicide, Preemergence (1027), Herbicide (1832) EPA# 279-3442. California Registration #. Strawberry: On the bed-top, options include flumioxazin, napropamide, sulfentrazone (Spartan) (Group 14), and oxyfluorfen for Florida pusley control. In row middles, flumioxazin can be applied post-transplant but prior to fruit set Weed control: Post emergent application: Annual broadleaf weeds can be controlled with 2,4-D amine formulations. Check the label as only a few products are labeled for use on strawberries. e.g. Amine 4 [Dimethylamine salt of 2,4-D (3.74 lb./gal.)] at 2 to 3 pts/acre in 25-50 gallons of water applied immediately after final harvest Remarks Strawberries are listed on the federal Spartan 4F label but Oregon and Washington SLN labels (OR-110009 and WA-110007) provide use pattern and directions more appropriate to Oregon and Washington production systems. Water is required to activate sulfentrazone

SPARTAN® FL 4F HERBICIDE FMC Ag U

Agriculture for the use of Spartan 4F Herbicide (EPA Reg. No. 279-3220) to control common groundsel in strawberries. Spartan 4F herbicide contains 39.6% sulfentrazone and is manufactured by FMC Corporation. Growers can apply 4 to 8 fluid ounces of product, but no more than 8 ounces of Spartan per acre/pe *SPARTAN CHARGE Herbicide contains 0.35 pounds per US gallon of the active ingredient Carfentrazone-ethyl. ** SPARTAN CHARGE Herbicide contains 3.15 pounds per US gallon of the active ingredient Sulfentrazone. KEEP OUT OF REACH OF CHILDREN CAUTION FIRST AID If in Eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes Public comments are open through June 6 on a proposed pesticide registration for a special local need in Wisconsin, allowing strawberry growers to use Spartan 4F® to control weeds

Choosing fall weed management options for strawberries

traditional herbicides used to control dandelions (Taraxacum officinale) and crabgrass (Digitaria spp.) are ineffective since yellow nutsedge is a sedge and not a broadleaf or grass. Herbicides that contain halosulfuron (Figure 6) or sulfentrazone (Figure 7) are recommended for yellow nutsedge control. Regardless of herbicide selection, yellow nut Spartan 4F is labeled for Michigan strawberries (check label for other states) at planting time. Like Prowl, Spartan will burn new growth so apply before strawberries begin growing. Spartan controls several troublesome weeds, including common groundsel, field pansy, mayweed or dog fennel, pineapple-weed or chamomile, several pigweeds Strawberries are listed on the federal Spartan 4F label but Oregon and Washington SLN labels (OR-110009 and WA-110007) provide use pattern and directions more appropriate to Oregon and Washington production systems. Caution Application to strawberry plants with newly emerged growth is not recommended due to leaf burning and possible stand loss. Sinbar. ®. Agricultural Herbicide. Sinbar is an important tool for managing herbicide resistant weeds. It is a Group 5 herbicide that contains the active ingredient terbacil providing a different mode of action than many other popular products. Sinbar herbicide controls approximately 60 broadleaf weeds including several that are tolerant to.

View the product label for Spartan Charge from FMC Corporation. See active ingredients, product application, restrictions, and more. Herbicide, Preplant/Preplant Incorporated (703), Herbicide, Postemergence (1365), Herbicide, Preemergence (1027), Herbicide (1832) EPA# 279-3337. California. It is most appropriate for strawberry grown on raised beds on plastic mulch. Spartan, Sinbar, Ultra Blazer, Prowl H2O and Dual Magnum also may be applied in late fall before spreading of straw mulch. An effective herbicide application in fall should provide good weed control through the harvest season the next spring From the Field-Agronomy Notes: Vol. 2, Num. 5. Agronomy Notes are back this week after a brief intermission to stay in front of the cold related issues affecting greenhouses around the state. We're going to jump ahead in the season just a little and discuss the specifics of weed management for growers considering the use of the herbicides. 2. The product, Spartan® 4F Herbicide (EPA Reg. No. 279-3220), containing 39.6% sulfentrazone, manufactured by FMC Corporation, may be used. All applicable directions, restrictions, and precautions on the product label must be followed. 3. A maximum of 760 acres of strawberries may be treated. 4

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strawberry, grape, & almond (Additional crops pending further development) • Powdery mildew (Oidium spp., Sphaerotheca macularis), Botrytis Herbicide, Solstice herbicide, Spartan 4F herbicide, Spartan Charge herbicide, Spartan Elite herbicide, Zeus Prime XC herbicide, Zeus XC herbicide, Capture 3RIVE 3D insecticide,. 630 Freedom Business Center, Suite 402. King of Prussia, PA 19406. 610-491-280

Table 26. Weed Management in Strawberries UMass Center ..

SPARTAN® 4 F HERBICIDE SDS # : 1466-1-A Revision date: 2015-04-17 Version 1 Ingestion Call a poison control center or doctor immediately for treatment advice Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by a poison control center or doctor Do not give anything by mouth to an unconscious. Stinger® herbicide is a selective postemergence herbicide for control of broadleaf weeds in apple, barley, oats and wheat not underseeded with a legume, canola (rapeseed), Christmas tree plantations, conservation reserve program (CRP) acres, cottonwood/poplar and eucalyptus tree plantations, crambe, fallow cropland, field corn, garden beet, grasses grown for seed, Brassica, peppermint. ACKNOWLEDGEMENTS Special acknowledgement and thanks are due to the following individuals who made this work a success: Experiment Stations Richard L. Callendar and Staff - Muck Crops Agric. Res. Station, Willard Matt Hofelich and Staff - North Central Agric. Res. Station, Fremont John Y. Elliot - Dept. Farm Manager and Staff, OARDC/OSU Lynn F. Ault - Dept. Farm Manager and Staff, OARDC/OS

Herbicides Mark P. Harrison, Normie W. Buehring, Mark W. Shankle, Erick J. Larson, Darrin M. Dodds, and Tom W. Eubank Introduction Before making herbicide application decisions, it is important to understand a selected herbicide's crop rotation restrictions and it's impact on planting interval for the next crop Residual Control That Goes the Distance . Longer-lasting Alion ® herbicide provides a unique solution for pre-emergence control of a broad range of grass and broadleaf weeds, including ALS-, ACC-ase-, triazine- and glyphosate-resistant species. Alion simplifies weed control, allowing producers to turn their attention to what really counts - profits

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herbicide. tm. group 14. herbicide: herbicide: strawberry, sugarcane, sunflower and safflower, sweet potato, wheat, transplanted melons, pepper and tomato beds, non-bearing fruit trees, fallow land, and to maintain bare ground on non-crop areas of farms, orchards and vineyards How Prowl H2O Herbicide Works Thorough, persistent and ravenous — the power of Prowl H2O herbicide is yours to unleash. A water-based formulation of pendimethalin, Prowl H2O is ideally suited for growers looking for long-lasting, dependable, broad-spectrum residual weed control sulfentrazone (Spartan 4F) Rate 0.125 to 0.25 lb ai/a (4 to 8 oz/a Spartan) Time Apply to established plantings during dormancy. SLN labels OR-110009 and WA-110007. Remarks Rainfall or irrigation needed to activate herbicide within 14 days of application. Do not apply within 70 days of harvest Spartan FL 4F herbicide is labeled for use on a wide variety of Florida crops including sugarcane, strawberries, tomatoes, blueberries, bushberries, caneberries, grapes, lemons and oranges Public comments are open through June 6 on a proposed pesticide registration for a special local need in Wisconsin, allowing strawberry growers to use Spartan 4F® to control weeds

SPARTAN CHARGE is a selective herbicide that provides postemergent contact and soil residual weed control. SPARTAN CHARGE may be applied as a burndown prior to planting, early preplant, or as a preemergent application before or after weed emergence. Active Ingredient: Sulfentrazone 31.77%. & Carfentrazone-ethyl 3.53 Strawberry Pests; Tree Fruit Crops . (Spartan Charge) Rate 0.094 to 0.194 lb ai/a sulfentrazone + 0.010 to 0.021 lb ai/a carfentrazone (3.8 to 7.6 oz Spartan Charge 3.5SE) Rainfall and/or irrigation need`s to be between 48 hr and 7 days after application or weed control may be erratic. Do not apply through any type of irrigation system

10:10-10:30 Reduced tillage weed control challenges except they were also tolerant to Spartan. Weed control was good to excellent and hand weeding time was reduced with all the herbicides Strawberry-Oleg Daugovish indicated that nutsedge is increasing in strawberries tank mix glyphosate with Group 14 herbicides such as Sharpen, Spartan, Valor, or Aim if dandelion is a primary target for weed control because these herbicides will reduce glyphosate absorption resulting in reduced dandelion control. Refer to the following sources for biology and management of dandelion: Paragraph B2. T6 Sweet Charlie strawberry plants are June-bearers, but an excellent choice for use as a short-day variety in warmer climates. The best time to harvest Sweet Charlie strawberries is after the very tip of the strawberry has reddened. <This variety of strawberry>is a vigorous producer and a great choice for the home garden Strawberries Case Pack *See label for complete list of crops 2 x 2.5 gallon, 265 gallon Active Ingredient Acifluorfen 20.10% PS Clethodim is a post-emergent herbicide that can be used to control annual and perennial grasses and volunteer corn. PS Clethodim quickly penetrates the cuticle, making it rainfast within one hour of application American-owned and independently operated, Atticus is driven by grassroots experience and an unwavering commitment to operational excellence, helping U.S. retail distribution protect their livelihood. Our expanding portfolio of branded-generic pesticides is spread across two market platforms: Agricultural and EcoCore markets

Residual Control That Goes the Distance . Longer-lasting Alion ® herbicide provides a unique solution for pre-emergence control of a broad range of grass and broadleaf weeds, including ALS-, ACC-ase-, triazine- and glyphosate-resistant species. Alion simplifies weed control, allowing producers to turn their attention to what really counts - profits •The second key is to determine if the injury was the result of a herbicide with contact activity or if the herbicide was translocated in the plant. •A contact herbicide affects leaves that were present at time of contact •A translocated herbicide affects new leaves. •The final step in the key is to match the injury symptom to a herbicide Notes for August 2021: Summer is here and that means blueberries, peaches, raspberries, blackberries, figs, corn and tomatoes are here. Check your area's specific crop calendar (see this page) and call your local farms for seasonal updates. Strawberries and cherries are done in all areas except the far north. See these pages to find a local Peach festival, Blueberry festival and other festivals Limited-acreage crops such as flower, strawberry and vegetables have few weed control tools regardless of whether they use conventional herbicides or are produced organically. The project objective is to increase the weed control options for flower, strawberry and vegetables. Options include development of soil disinfestation treatments for flower and strawberry based on steam, solarization.

This can be done by spraying with a post‑emergence herbicide such as glyphosate (Roundup®) in late summer the year before planting or by shading out weeds by growing hybrid sudangrass for the year prior to planting. Strawberries especially should not be planted in newly turned under bermudagrass sod. Spartan: June 7-June 21 : Blueray. How to calculate herbicide rates and calibrate herbicide applicators Uniformly applying chemicals at proper rates is essential for effective pest control. A slight variation in the application rate with some chemicals may result in poor control of the pest or injury to the crop or environment, causing lost time, effort and money strawberry 10.5 months 10.5 months dry beans, soybean, sunflower 10.5 months 18 months (2) lentils, peas, potatoes (including potatoes grown for seed), and broadleaf crops grown for seed (excluding Brassica species) 18 months (2) 18 months (2, 3) residues in the harvested crop. 1. A field bioassay is recommended prior to planting any broadlea

Late season weed control is also an important issue in this crop. The objective of these studies was to examine at transplant and layby herbicide combinations for peppers that can provide long-term and economical weed control for peppers grown without plastic mulch. The herbicides teste This RTU (Ready-to-use) herbicide is a pre-mixed concentrate that can be applied straight from the bottle through the attached nozzle. Weed Impede is our top choice for liquid herbicides, as they work great against common Arizona weeds and grasses. Weed Impede Concentrate. This is the concentrated form of the Weed Impede RTU - this contains a. Spartan 4F. Spartan controls many of the same weeds as Sinbar but is used strictly as a PREMERGENCE herbicide. Spartan controls common groundsel, marestail, nutsedge, pigweeds, nightshades and yellow toadflax (butter and eggs), species that either are not controlled at all, or only poorly controlled by Sinbar. Spartan is weak on dandelions an

residual herbicides such as Pursuit, Spartan, and Sinbar, is fairly common in some horticultural crops. Residual herbicides extend the period of weed control, increasing the efficiency of weed management efforts. However, they may persist longer than desired and injure o Sulfentrazone 4SC is a soil-applied selective herbicide. It will control listed grasses, sedges and broadleaf weeds in turf and listed crops. Active Ingredients : Sulfentrazone 39.6%. Comparable Product : Spartan®, Dismiss® Manufacturer : Various. Usage Rate Recommendations : 2.25 - 12 Fl. Oz. per acr Trifluralin is a selective, pre-emergent herbicide that must be applied before target weeds sprout. It is one of the most widely used herbicides used for the control of annual grasses and broadleaf weeds in nut, grain, vegetable and fruit crops. 1 - 11 of 11 results. Filter Sort Strawberry weed in grass Table 25. Weed management in strawberries during the transplant and establishment years. TRANSPLANT YEAR Weed Problem Herbicide Rate/Acre Comments and Limitations PREPLANT WEED CONTROL Many annual broadleaf weeds (oxyfluorfen) Goal 2XL Group 14 1 - 2 pt Must be applied at least 30 days prior to transplanting

Herbicide treatments included halosulfuron (Sandea®; Gowan Co., Yuma, AZ) at 52 g ai ha −1 post-T; 200 g ai ha −1 sulfentrazone (Spartan® 4F; Agricultural Products Group, Philadelphia PA) pre-T alone or fb 52 g ai ha −1 halosulfuron post-T; 1,366 g ai ha −1 S-metolachlor (Dual II Magnum®, Syngenta Crop Protection, Greensboro, NC) pre. Weed control for strawberries and raspberries continues to be an important topic for commercial growers. Dr. B. Spartan- (Pre-emergent) A newer herbicide labeled for use as a control of broadleaf weeds, specifically common groundsel, lambsquarters, pigweed, pineapple weed and others. Fo Spartan FL 4F is the most recent product registered for use in tomato. It can be applied pre-emergence under the plastic mulch. There are some label restrictions based on soil type and organic matter content that should be followed. This herbicide has activity on a wide array of broadleaf weeds as well as suppression of nutsedge species

Zaltus™ SX herbicide contains flumioxazin, the active ingredient used in Valor® SX and Chateau®. Control over 90 different weeds in more than 50 different crops including corn, almonds and cotton Chemical Name (ai) Product Name* USA Canada Codex EU Japan Korea Taiwan Sulfentrazone Spartan 0.15 0.15 NT NT 0.6 NT NT S-metolachlor Dual Magnum 0.4 0.1 NT 0.05 NT 0.1 N Boyd had four trial plots, one with a pre-emergent herbicide, one with a post-emergent herbicide and two with a combination of both. Pre-emergent herbicides are applied under the plastic to control weeds before they go through the plastic. On the first plot, Boyd used Spartan, a pre-emergent herbicide, at 6 ounces per acre PFP21: Soybean Preemergence Herbicide Decisions. As we start wrapping up corn planting, many people are looking toward planting some soybeans. While many other inputs are important considerations at planting, weed management decisions this time of year can be critical to maintaining clean fields throughout the season

herbicide Single pass solution for sedge, grass and broadleaf weed control Zone 4F® herbicide is a grower's best defense for controlling tough sedge, grass and . broadleaf weeds like nutsedge, nightshade, kochia, pigweed and lambsquarters. An ideal management tool when targeting glyphosate, imidazolinones and ALS-resistan Leaves are yellow: Yellowing is interveinal, associated with browning. A number of causes can induce leaf browning in blueberries. Many of these are associated with factors contributing to overall cane death or dieback. If canes are not dying but leaves on particular portions of the plant are turning brown, the cause could be Invasive knotweeds currently dominate portions of many western Washington riparian areas. Adequate control of these knotweed species is a necessary for successful re-vegetation of salmon-bearing streams in western Washington with native woody species. Given that control of these knotweed species will require elimination of shoots arising from rhizomes, it is important to determine the effect. When it comes to herbicide use in spring, several factors come into play: 1) Crop safety: several herbicides need to be applied to dormant strawberry plants to limit potential injury. 2) Weed growth stage: some herbicides only control weeds prior to emergence, some after emergence and a few do both The material and content contained in the Greenbook label database is for general use information only. Agworld and Greenbook do not provide any guarantee or assurance that the information obtained through this service is accurate, current or correct, and are therefore not liable for any loss resulting, directly or indirectly, from reliance upon this service