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2,4 d application temperature

I tested Trimec on my lawn since it was almost 70 degrees today and because the henbit, clover, chickweed, etc. is a nightmare. I know its still early, so what soil/air temp would you recommend for Fescue? I looked all over the label and it didn't specify a temp. Piedmont of NC. Thanks This is due to the tendency of 2,4-D to volatilize under the right climatic conditions. Additionally, volatilization can still occur several days after the original application, although the most injurious volatility probably occurs during the first 12-24 hours after application. Injury by 2,4-D may be seen on both the foliage and the fruit. Shoo

Spray 2,4-D at least 6 weeks after newly seeding or sodding your lawns to prevent retarding the grass. The timing for the specific day is also important. Ensure you apply this herbicide when the soil temperature in your lawn is below 90 F. Take note that 2,4-D can also harm other plants such as flowers, so time well to spray it on a windless day Now I've looked at a few labels for products containing 2,4-d. This product shows 2,4-D as only active ingredient, and has general warning about applying when over 90 degrees. Some other products with 2,4-D at lower concentrations don't have the warning Spraying is best done on windless days when the temperature is below 90 degrees Fahrenheit, two days after the last mowing. Before spraying on new lawns, you should wait about six weeks after seeding, or four weeks after sodding, sprigging or plugging. Wait two days after spraying 2,4-D to mow the grass. Click to see full answe by spraying only when the wind velocity is less than 5 miles per hour. Aircraft applications should only be made by applicators experienced in the use of 2,4-D formulations. Consult local regulatory agen-cies concerning requirements before making applications Temperature Inversions If applying at wind speeds less than 3 mph, the applicator must determine if: a) conditions Applicators must follow all state and local pesticide drift requirements regarding application of 2,4-D herbicides. Where states have more stringent regulations, they must be observed

What's the ideal temp to spray 2,4-D for spring weeds in

Subject: RE: temperature for 24D to work. Kentucky. I think the key is that the weeds are actively growing which generally means highs above 50 and lows above freezing. The ester will work well cool or hot. The problem with the ester and warmer temps is with the volatility of the ester and the product getting up and moving after you spray if it. The salt forms may be only slightly toxic to aquatic animals. Aquatic animals are more sensitive to 2,4-D as water temperature rises. 2,4-D may be moderately toxic to practically non-toxic to birds if they eat it. Eggs sprayed with 2,4-D still hatched and the chicks were normal. 2,4-D is practically non-toxic to honeybees Some of the weeds that 2,4-D are known to treat include dandelion, tumbleweed, ground ivy, common ragweed, goldenrod and horsetail. Select a day when temperatures are expected to be less than 90..

Chemical Class and Type: 2,4-D is an herbicide and secondarily a plant growth regulator. 1 Formulations include esters, acids, and several salts, which vary in their chemical properties, environmental behavior, and to a lesser extent, toxicity. 2,3 The salt and ester forms are derivatives of the parent acid. 2 Unless otherwise stated, the discussion in this fact sheet will refer to the acid form The 2,4-D weed killer is toxic. Limit your applications to twice a year to minimize toxicity in the landscape. Stay off the treated area until it dries thoroughly and keep children and pets from coming into contact with 2,4-D. Keep the chemical off your skin as contact may cause irritation 1. Use Precautions Do not apply this product through any type of irrigation system. Do not apply intank mixtures with other 2,4-D products. Do not apply when temperatures exceed90°F and humidity is high degradation (Johnson et al. 1995a). Most formulations of 2,4-D are volatile (T. Lanini, pers. com.). Volatilization Most formulations of 2,4-D can be highly volatile and care should be used in their application. The most volatile of the 2,4-D esters, methyl and isopropyl, have been banned in the U.S. (Qu

AMINE 4 2,4-D WEED KILLER EPA REG. NO. 34704-120 When applying sprays that contain 2,4-D mixed with other active ingredients that require a Medium or more fine spray, apply only as a Medium or coarser spray (ASAE standard 572) or a volume mean diameter of 300 microns or greater for spinning atomizer nozzles. Wind Spee bindweed, and many woody plants usually require repeated applications for maximum control. Do not apply LV 400 2.4-0 Weed Killer where spray drift may contact nearby susceptible crops or other desirable plants. or may contaminate water used for irrigation or domestic purposes

  1. 2,4-D LV4 ACTIVE INGREDIENT: applications when conditions such as wind, air stability and temperature inversions are not a factor. The use of a suitable drift control agent at the proper rate will aid in the reduction of sp ray drift. Apply when weather is warm and plants are rapidly g rowing
  2. Set the pressure to 20 pounds per square inch. Start the tank's agitator and keep it running throughout the mixing and application process. Fill the tank with 1/2 gallon of clean tap water. Add 2.
  3. What is the mix ratio for 2 4-D? 2, 4-D Mixing Ratio and Application Rate. In general, mix 2.5 oz of 2, 4-D weed killer (5 tablespoonfuls) with 1 gallon of water and use it to treat 400 square feet of weed-infested area in your yard. How long does 2 4-D stay in the soil? The half-life of 2,4-D in the environment is relatively short, averaging 10 days in soils and less than ten days in.
  4. e synthetase inhibitor - Liberty) herbicides become more active under higher temperature; however.

Can I Spray 2, 4-D on Lawn? What Weeds it Kills + Mixing

2,4-D in Hot Weather - aroundtheyard

  1. d 2,4-D isn't as sensitive to cold temperatures What about using 2,4-D products? They aren't as cold sensitive as long as the plants themselves are not too damaged by the cold temperature or frost. In general, winter annuals won't sustain much damage from cold temperatures, so you should key off of the spring annuals that are up
  2. Gallons of pesticide per acre = application rate (pounds per acre) ÷ concentration or acid equivalent. Example Suppose you want to apply 1.5 pounds of 2,4-D per acre and the 2,4-D contains 4 pounds of active ingredient per gallon. Gallons of 2,4-D per acre = 1.5 pounds per acre ÷ 4 pounds per gallon = 0.375 gallon per acre or 3/8 gallon per acr
  3. The MSWCs for 2,4-D BEE are less than the master label application rate of 4 ppm, but they are unlikely to be of concern because 2,4-D BEE degrades rapidly by abiotic hydrolysis; 2,4-D BEE degrades to 2,4-D acid by microbial hydrolysis; and modeling predicts direct water application of 2,4-D BEE will yield surface water concentrations of 2,4-D.
  4. For better results, some species like perennial sowthistle, blue lettuce, bindweed, bur ragweed, and Canada thistle may require more than one application. Note that restrictions may apply to aquatic weed control in your area. Make sure not to apply when the temperature exceeds 90 degrees Fahrenheit or winds exceed 15 mph
  5. In that study, Speedzone and Trimec Classic gave greater control at warm compared to cold temperature application. Herbicides containing carfentrazone plus ester forms of 2,4-D or MCPA provided the highest levels of control
  6. 2,4-D Aquatic Herbicide. 2,4-Dichlorophenoxyacetic acid—or 2,4-D for short—is a chemical formulation that has been used as an herbicide since the 1940s. This chemical was registered with the EPA for aquatic use in the 1980s, and it remains a staple in our arsenal of aquatic vegetation management tools
  7. What You Need to Know about 2,4-D Herbicide to Keep Pets Safe. When it comes to sprays lawn care companies will use to treat yards, many contain 2,4-D herbicide. Summer temperatures mean pets might be spending some more time outdoors. There's some debate on the Internet over what chemicals are considered safe or unsafe for dogs and cats

2,4-D is applied too early, says Manitoba Agriculture weed specialist Bruce Murray. He said early application of 2,4-D caused a fair amount of damage to winter wheat. Unfavourable weather. Most of the time, 2,4-D breaks down in soil so that half of the original amount is gone in 1-14 days. This breakdown time is called the half-life of the pesticide. One form of 2,4-D, the butoxyethyl ester, had a much longer half-life in aquatic sediment of 186 days 2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula C 8 H 6 Cl 2 O 3 which is usually referred to by its ISO common name 2,4-D. It is a systemic herbicide which selectively kills most broadleaf weeds by causing uncontrolled growth in them but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.. 2,4-D is one of the oldest and most widely.

Most labels require a wait of seven days after a 2,4-D application before dairy cows can graze, 30 days before cutting, and three days before meat animals grazing on grasses treated with 2,4-D can be sent to slaughter. References: Anderson, W.P. 1996. Weed Science Principles and Applications 3rd edition. pp.193-19 For the sake of conversation, 2, 4-D will be used as an example. 2, 4-D has been a staple of weed control since the 1940s, and continues to be a primary ingredient in a majority of multiple-ingredient herbicide products. 2, 4-D controls a large number of perennial weeds, but usually has little effect on grasses

PPT - Keep it in the Field : Management of Off-Target

What temperature should I spray my 24d

Curtail is an herbicide used to control broadleaf weeds in wheat and barley. Curtail is produced by Dow AgroSciences, and its active ingredients are clopyralid and 2,4-D amine. Curtail herbicide is best applied by a professional, but if you choose to use this chemical herbicide, you will need to follow all of the. direction, temperature, application equipment and sprayer settings. OPERATOR USE PRECAUTIONS Wash hands before eating, drinking, using tobacco or using the washroom. on the 2,4-D Amine label at 840 g ae/ha (equivalent to 1.5 L/ha of 2,4-D Amine 600 Herbicide) 2,4-D Amin weeds controlled, application timing, and tolerant turf species. applications due to variable soil temperature and moisture conditions from year to year. 2,4-D, glyphosate) are absorbed and moved throughout the plant. They are sometimes applied to the foliage an crop resistance to 2,4-D or dicamba, when stacked with other herbicide resistance traits will reduce the risk of crop injury often associated with pre-plant 2,4-D or dicamba applications. They'll also improve control of difficult and resistant weeds in no-till and conventional systems any time from preplant into the growing season General Information Grazon P+D herbicide is a water-soluble liquid product containing picloram and 2,4-D. Use Grazon P+D in rangeland and permanent grass pastures, non-crop areas including industrial manufacturing and storage sites, rights-of-way, such as electrical power lines, communication lines, pipelines, highways, railroads, and wildlife openings in non-crop areas, to selectively control.

Viewing a thread - temperature for 24D to wor

  1. Two to three applications 14 to 21 days apart may be necessary for control. For broadleaf weeds, apply a three-way mixture, such as products containing 2,4-D, dicamba, and mecoprop. See Table 2 for examples. August - October: Preemergence: Make applications
  2. An approved non-ionic surfactant should be used with glyphosate (Rodeo® formulations only). If rain falls within 6 hours of application, the effectiveness of glyphosate will be reduced. 2, 4-D (Various trade names) 2,4-D is a translocated herbicide that is available as a granular or liquid formulation
  3. control) will usually be the same as from application in warm weather. Ideal temperatures for applying POST herbicides are between 65 and 85 F. Speed of kill will be slower during cold weather also. Use higher rates to overcome reduced control if cold temperatures occur a few days before or if forecasted after application. Cold weather is
  4. ation of groundwater supplies. Use of closed systems for mixing or transferring this pesticide will reduce the probability of spills. Placement of the mixing/loading equipment on a

Consult local regulatory authorities before making applications. Although LV400 2,4-D WEED KILLER SOLVENT FREE is a low volatile formulation, at temperatures above 90°F vapors may damage susceptible plants nearby. Product should not be used in greenhouses. Excessive amounts of 2,4-D in the soil may temporaril Overview & Benefits. Be ready for weeds whenever they make an unwelcome appearance in your lawn with Ortho® Killex® Lawn Weed Control Concentrate. Controls more than 50 varieties of actively growing lawn weeds*, including dandelion, ground ivy, and plantain. Won't harm your lawn when used as directed. Simply mix the concentrate with water. Add 4 tablespoons of 2,4-D and then continuing adding another 1 1/2 gallons of water to the backpack sprayer. This is enough herbicide to cover up to 3,000 square feet of lawn . Spray actively growing weeds until the leaves and stems have been completely wet by the 2 , 4 - D solution Trimec ®: More than 50 Years of Proven Performance. Concentrated formulation. 3-way herbicide blend. Kills 230+ listed broadleaf weeds without harming most lawn grasses when used as directed. Economical choice for large lawn areas. One gallon covers 32,000 to 64,000 sq. ft. (northern vs. southern lawns

Spring applications are less effective than fall applications. Which herbicides will effectively control broadleaf weeds in the lawn? Effective broadleaf herbicides include 2,4-D, MCPP, dicamba, triclopyr and others. The most effective broadleaf herbicide products contain a mixture of two or three herbicides, as no single compound will control. These chemicals (triclopyr, 2,4-D and dicamba) have properties and c ha rt eis o dwm l ng u .T use of these chemicals in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamina - tion. Application around a cistern or well may result in contamination of drinking water or groundwater 2,4-D ester formulations generally mix easier with fertilizer solutions than 2,4-D amine formulations. When applying 2,4-D products with 28% UAN as the spray carrier, DO NOT include surfactant. The addition of other herbicides or fungicides to these mixtures will likely increase the risk for crop injury application. The potential to volatilize increases with increasing temperature, increasing soil moisture, and decreasing clay and organic matter content (Helling et al. 1971). Photodegradation Both the ester and salt formulations are degraded readily in sunlight to the parent compound, triclopyr acid, which is also photodegradable label limits application to 16 ounces per acre per year (so two 8 oz applications or three 5 oz applications). Therefore, some thought should be given to how and when to use Tenacity™ in order to maximize its effectiveness. Seedling Establishment or Overseeding One of the difficulties that turf managers face when establishing turf from see

The objectives of this study were to (1) evaluate the influence of temperature on the efficacy of 2,4-D or glyphosate for common and giant ragweed control and the level of glyphosate resistance burndown application of 2,4-D amine. Similarly, 2,4-D choline plus glyphosate resulted in >93% control of GR common ragweed at 21 DAT in Most products sold for brush control at garden stores are a combination of two or three growth regulator herbicides intended for foliar applications. Products containing triclopyr generally are more effective on woody species than those based on 2,4-D, dicamba or other herbicides Repeat applications may be required through the late spring and summer. Click to see full answer. Also know, what temperature do you spray MSMA? The daytime temperature needs to be between 80°F and 90°F for MSMA® to be effective. For pastures, a quart of 2,4-D per acre will control annual broadleaf weeds effectively Strike 3 herbicide contains three active ingredients: 2,4-D, mecoprop-p and dicamba. These three ingredients work together to control spurge, plantain and other turf and noncrop weeds. Strike 3 Herbicide contains the same percentage of Active Ingredients as Trimec 992 Whether it's clover in the backyard or dandelions on the golf tees, Strike 3 works hard to eliminate unwanted broadleaf weeds. Best performance usually occurs when the temperature is 60-75°F at application and remains there for a few hours afterward. When the temperature is lower than 60°F, weed growth slows, resulting in slower herbicide uptake and translocation. This increases the required rainfast period and slows the onset of symptoms and herbicide efficacy

2,4-D General Fact Sheet - Oregon State Universit

  1. When to Apply. Herbicides containing MSMA are most effectively applied when grassy weeds such as crab grass and Dallis grass have emerged in the early spring and are actively growing. Repeat applications may be required through the late spring and summer. Initiating control in late summer or fall when the weeds are mature will not be successful
  2. MEC AMINE-D. A three-way post-emerge broadleaf herbicide for selective broadleaf weed control in turfgrasses. Labels/SDS. Printer-friendly version. PDF version
  3. The majority of the weeds such as dandelions and plantains, however, can be best controlled by fall application. Precautions When Using 2,4-D Sprays. It would be wrong to think that no precautions have to be practiced when spraying is done in the fall. When using 2,4-D, care must be taken regardless of the season. Always choose a quiet day to.
  4. Crossbow™Herbicide By Winfield Safety Data Sheet Revision Date: 28 - MAY - 15 1 of 7 SECTION 1: IDENTIFICATION Product Name: Crossbow™ Herbicide by Winfield EPA Registration #: 62719-260-1381 Product ID/Unity #: 1563944, 1563945, 1563946 Common Name: Triclopyr and 2,4-DBE Chemical Description: Triclopyr-2-butoxyethyl ester and 2,4-Dichlorophenoxyacetic acid, butoxyethyl este
  5. Change Up™ premium selective herbicide combines MCPA, fluroxypyr and dicamba to deliver powerful weed control results. An excellent herbicide for cool and warm season turf, Change Up controls more than 200 broadleaf weeds and it starts working quickly to strike out weeds and help reduce callbacks. Plus, Change Up is ideal for any accounts that may be sensitive to the use of 2,4-D on the.
  6. g large tracts from mature, established, mixed brush

Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (504K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References Best Time To Apply 2-4-D. Application of the 2-4- D can be a challenge if you don't know the right time to use the herbicide. It appears that temperature should be at least 70 degrees or even above for optimal results. Research has shown that when 2-4- D is applied when temperatures are above 90 degrees, it causes harm to the plants

For example, Trimec Classic (2,4-D + dicamba + MCPP) applications often have erratic activity in early spring but perform much more effectively in summer. Sensitive species to these herbicides, such as St. Augustinegrass, have a higher risk of injury due to greater activity under excessive heat the application of Buctril in newly planted alfalfa. only time I observed injury was when the temperature exceeded 75 to 80°F at the time of 2,4-DB is not an effective herbicide but in certain plants it is converted to 2,4-D acid throug 2,4-D Several manufacturers: 0.5 to 1.5 pts. Postemergence after grain is fully tillered. Most 2,4-D products are labeled for use in wheat, barley and rye. Application timings other than those recommended on the individual 2,4-D product label may result in small grain injury. Use the higher rate range for biennial and perennial weeds

How to Spray 2,4-D Home Guides SF Gat

The Use and Application of 2,4-D as an Agricultural Herbicide. Summary: 2,4-D is one of the most widely used herbicides in the world, and is registered for use in more than 70 countries. 2,4-D was one of two herbicide ingredients in Agent Orange. The other ingredient—2,4,5-T—was contaminated with a dioxin The maximum application rate is 4.0 pints of product per acre per application (0.99 lb. 2,4-D ae, 0.27 lb. MCPP-p ae, and 0.11 lb. dicamba ae per acre per application). For ornamental turfgrass, the m ax iu nb e rof dc s tpl 2 y w h a minimum of 30 days between applications. For sod farms, th This is a 2 part breakdown of Prodiamine 65 WDG giving you a yearly application schedule with soil temperature milestones. Part 1 of this series can be found here.. So you want to understand the meaning of a split application or split app of prodiamine pre-emergent herbicide and you want to do it liquid. In the previous post, I broke down all the costs of applying your prodiamine. Powered by Kixor herbicide technology, Sharpen herbicide drives burndown three to five times faster than 2, 4-D or glyphosate and offers broad-spectrum control of tough broadleaf weeds. Later in the season, Sharpen herbicide is a fast and complete harvest aid that allows growers to harvest on their schedule

2,4-D Technical Fact Sheet - Oregon State Universit

Example: 2,4-D. Appearance of Symptoms: Symptoms appear within hours of application on sensitive species. Corn symptoms may first be observed as wilt. Later, leaves may be tightly rolled in the whorl (onion-leaf) (Figure 42.8), stalk may be brittle, and brace roots may proliferate (Figure 42.10). Some corn hybrids are more sensitive than others Besides, factors such as season, weather, temperature and other things also take into account the herbicides efficacy. Below is all the information about Best time of Year and Best time of Day to spray Weed killers, as well as best weather, and best temperature for an effective herbicide application For Broadleaf weed control, 2,4-D and 2,4-DB (Butyrac) are commonly used. 2,4-D is commonly used in grass species food plots, such as corn, wheat, oats, and rye. 2,4-DB is significantly different in that it does not affect perennial legumes such as clover, alfalfa, and trefoil

Mixing Directions for 2 4-D Weed Killer Hunke

How Shredder 2 4 D Amine Herbicide Works This herbicide contains 46.8 percent 2,4-D amine Herbicide as the active ingredient, which goes right to the source and kills broadleaf weeds over time. Though Shredder does not kill on contact, the active ingredient penetrates the plant tissue, inhibits amino acid synthesis and slowly destabilizes the weed, resulting in its death CONTAINS 2,4-D, MECOPROP-p AND DICAMBA GET THE OPTICAL ADVANTAGE® Avoid broadcast applications when air temperature exceeds 90 degrees. When using small, spot treatment applications in temperature over 90 degrees, turf injury may occur. Dandelio The formula is rainproof in 1 hour and is fast-acting--you'll see results in just one application. It kills over 200 weeds down to the roots, including dandelion, chickweed, clover, crabgrass, and foxtail Application is easy: simply connect the garden hose to the attached sprayer. 2,4-D, dimethylamine salt: 0.313% Quinclorac: 0.104% Dicamba. 2,4-D LV6 / Roundup PowerMAX 22 / 32 4 / 9 FB Authority MTZ / Gramoxone SL 2.0 10 / 40 5, 14 / 22 5* Sharpen / Roundup PowerMAX 1.5 / 32 14 / 9 FB Authority Supreme / Metribuzin (75DF) 8 / 4 14, 15 / 5 *Plant-back restriction Post-emergence Application Rate (oz.) SOA 1 Liberty® / Dual II Magnum® / Clethodim (2 lb. ai./gal.) 32 / 16 / 4 - 8 10. White clover is more tolerant of 2,4-D applications than other clovers, but effectiveness of these applications is dependent upon weather and maturity of weedy species. Two pints of 2,4-D per acre will injure white clover, but in most cases it will recover. Clover is highly sensitive to dicamba (Weedmaster, Banvel), picloram (Grazon P+D) and.

Subject: Amine 400 2,4-D Weed Killer Registration No. 2217-2 Application and Letter Dated May 5, 2005, Request to Amend Registration To Add Maximum Use Rates for Forestry and Non-Crop Sites To Label, Based on A Memorandum of Understanding Agreed to between the Industry Task Force lIon 2,4-D Research Data o De-Amine ® 4 is a premium, low-volatile 2,4-D Amine formulation that provides selective control of many Annual and Perennial broadleaf weeds and certain brush species. Features and Benefits. Registered for use in Cereal grains, Corn, Fruit, Rice, Sorghum, Soybeans, Sugarcane, Vegetable crops and Non-crop applications

Pesticide application - Wikipedia

How to Use 2,4-D Herbicides Home Guides SF Gat

How to use. 1) Check the Weather: If rain is in the forecast in the next 24 hours, apply another day. Rain can wash the particles off of weed leaves before it has a chance to work properly. 2) Fill and Set Spreader: Applying Scotts® Turf Builder® Weed & Feed requires a lawn spreader. If you need a new spreader, you can find one here These 3-way mixes typically contain 2,4-D, dicamba, and mecoprop. Many grassy weeds are controlled by quinclorac or fluazifop applications. Nutsedges are controlled by imazaquin, bentazon, or sulfentrazone. If summer annual grassy weeds are a problem, pre-emergent herbicide applications in late winter and early spring may be the best choice 2,4-D amine 4 (several brands) 0.5-1 pt. 2,4-D. Broadleaf weeds controlled. Sorghum is not as tolerant to 2,4-D as corn. Broadcast after sorghum is 6-8 tall. If sorghum is 10-15, use drop nozzles to direct spray toward base of plant. Over-the-top applications are most likely to result in herbicide injury

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When to spray 2 4 d on lawn? - Pension inf

The 2,4-dichlorophenoxyacetic acid (2,4-D) is a synthetic auxin that has been historically used as one of the most common herbicides to control broadleaf weeds. At the same time, it also has good potential to enhance storage life and quality of fruits (Ferguson et al., 1982; Yuan and Carbaugh, 2007 ). Preharvest application of 20 mg/L 2,4-D. Dicamba, triclopyr, MCPP, 2,4-D or 2,4-DP applications for creeping Charlie control should be made when plants are actively growing. A mid to late autumn herbicide application (after the first frost) is often particularly effective. During this period, plants are drawing nutrients from their leaves and into their roots for storage over the. application (e.g., ground) can influence pesticide drift. The applicator must evaluate all factors and make appropriate adjustments when applying this product. Droplet Size When applying sprays that contain 2,4-D as the sole active ingredient, or when applying sprays that contain 2,4-D mixed with ac tiv

How to Kill Ground Ivy [5 Effective Tips] | Pepper's Home(PDF) Nano lithium aluminate filler incorporating gelPPT - Using Herbicides Safely Around Woody PlantsResources & Rewards

Apply when the daytime temperature is 55-85℉. Apply in late spring/early summer when weeds are still young. Apply Atrazine no more than 2 times per year (a spring application and fall application). Dilute Atrazine according to the product label to ensure correct application rates For example, one population of ground ivy may be highly sensitive to 2,4-D, while another population may be somewhat tolerant to 2,4-D. Control strategy Apply 3 to 4 pounds of nitrogen per 1,000. Highly volatile organo-auxin herbicides include the methyl, ethyl, propyl, isopropyl, and butyl esters of 2,4-D, etc. 3. Based upon the wind speed and direction at the time of application, the distance that must separate the closest edge of the area to be sprayed from susceptible crops is listed below Common Name: 2,4-D Chemical Name: 2,4-Dichlorophenoxyacetic Acid . 2,4-D is one of the most widely used broadleaf herbicides in the world. Comes in two formulations: 1. Amine Salt; 2. Ester; Amine Salt is generally a warm weather formulation, while the Ester formulation is primarily used in cooler weather Chlordane is a chlorinated hydrocarbon used as a non-systemic contact insecticide for lawns and crops. Actually a complex mixture of isomers, other chlorinated hydrocarbons, and by-products, chlordane is used in termite and ant control, and as a protective treatment for underground cables Vapor-phase 2,4-D, 2-ethylhexyl ester will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 27 hours. If released to soil, 2,4-D, 2-ethylhexyl ester is expected to have no mobility based upon an estimated Koc of 33,000