In one sentence, describe what the following article is about: Generally, you'll have ideal temperatures and soil conditions for herbicide application during this time. But ultimately, it hinges on your region. In locations like Indiana, it can be difficult to get into fields in early May because of soil saturation. In this case, conduct the application in February or March. Daylight temperatures should by a minimum of 55F (13C), ideally 60F (16C). Night temperatures should be above 40F (4C) the 3 days prior to application. Soil temperatures should always be above 45F (7C). Herbicides work well for perennial ryegrass. Spraying them after this time during seedhead emergence will decrease effectiveness. If you want to kill ryegrass that is over 8 inches (20cm) in height, you'll have to use other methods like mowing and digging. However, you shouldn't mow the lawn for 2 to 3 days prior to sprayingit will decrease the amount of spray your ryegrass absorbs. There are no herbicides that are effective for ryegrass after seedhead emergence. Research suggests that you should use at least 1.25 pounds (20.0oz) ae per acre of glyphosate for killing annual ryegrass. If you're applying herbicides outside of the ideal application window, use 2.25 pounds (36.0oz) ae per acre of glyphosate. Labels on herbicide containers often use "a.i." or "a.e" as units of measurement for the herbicide's "active ingredient" or "acid equivalent, respectively. A mixture of 1 ounce (0.063lb) per acre of herbicide with 700 g/kg saflufenacil with 1.25 pounds (20.0oz) per acre of glyphosate is the most consistently effective way of controlling ryegrass across any application window. Adding 2,4-D and dicamba to your mix does not improve efficacy of glyphosate alone. The addition of a PS-II inhibiting herbicide (atrazine and metribuzin) can interfere with glyphosate and stop your herbicide mix from working. Effective lyphosate-free herbicide mixes should use paraquat in addition to metribuzin and either 2,4-D or dicamba. However, this combination is only suggested for ryegrass less than 6 inches (15cm) tall. Make sure the herbicide mix is compatible with your herbicide sprayer. If you're purchasing a branded mix, check that it is listed on your sprayer's label or supported by the manufacturer. These include wettable powders and water dispersible granules, liquid flowables and suspensions, emulsifiable concentrate (ECs) formulations, and surfactants/solutions. Wettable powders are solid pesticide formulations dispersed in water. Water dispersible granules are applied after disintegration and dispersal in water and have a longer dispersal time than wettable powders. Emulsifiable concentrates are pesticide solutions containing emulsifying agents mixed with a water insoluble organic solvent. Surfactants are compounds that decrease tension between two liquids, a gas and a liquid, or a liquid and a solid. In order to ensure that you add your products in the right order, follow the WALES acronym, which stands for Wettable powders and water dispersible granules; Agitate; Liquid flowables and suspensions; Emulsifiable concentrate (ECs) formulations; and Surfactants/solutions. Glyphosate should be added after the emulsifiable concentrate formulations and before surfactants/solutions. If you have a pre-purchased mix, fill the sprayer the rest of the way with the mix. If you're creating your own mix, any water conditioners, buffering agents, or defoamers you may need. Water conditioners increase the efficacy of glyphosate and glufosinate in herbicide spray systems. Buffering agents facilitate herbicide activity, or facilitate or modify characteristics of herbicide formulation. Defoamers prevent excessive foaming activity in the spray tank. Apply your herbicide using an application volume of 10 gallons (38L) per acre. Avoid spraying in temperatures above 80F (27C). Use a medium spray droplet size and moderate spray pressure. Use standard or XR flat fan nozzles. Avoid flood jet or air induction nozzles. Spray volumes lower than 7 gpa and above 15 gpa can reduce the effectiveness of glyphosate. This can be done if the first application did not kill all of the grass. This is especially important for plants that were sprayed when over 6 inches (15cm) tall. Air temperatures should be 45F (7C) or more for at least 3 to 5 days.
Summary: Spray your ryegrass between April 15 and May 1. Apply herbicides before ryegrass grows to 8 inches (20cm) in height. Use an herbicide that includes glyphosate if you want a prepared mix. Purchase herbicide mix components if you're making your own. Fill the sprayer tank half-full with water, then add the mix. Spray your herbicide mix on your ryegrass using your sprayer. Conduct a second application in the following fall.

In one sentence, describe what the following article is about: Purchase an over the counter (OTC) acne cleanser that contains salicylic acid or glycolic acid. Squirt some of the cleanser into a soft bath sponge and then rub it over your back. Try to wash your back for at least a minute so the cleanser can penetrate your skin. Then rinse it off. It's easiest to wash your back while you're in the shower. Wash your back with the cleanser twice a day unless it dries out your skin. If your skin is too dry, wash just once a day. Buy an OTC exfoliant and squirt some of it into a soft bath sponge. Massage the exfoliant into your back for at least a minute and then rinse it off. The gentle exfoliant will help to remove the blackheads on your back. To make it easier to scrub your entire back, try using a scrubber brush that has a long handle. Many products designed to exfoliate blackheads also contain salicylic acid. Apply the cream once a day. Check retinoid cream or gel products to ensure they contain 0.1% adapalene. This will help unclog your pores so it's easier to get rid of blackheads while preventing them from forming. If you have hard to reach blackheads, ask someone to help you spread the cream or gel for you. Rub the cream onto your back after you get out of the shower or before you go to bed. You've probably seen a lot of acne medications that contain benzoyl peroxide which reduce inflammation and treat bacteria that causes acne. Since blackheads aren't caused by bacteria and they don't cause inflammation, benzoyl peroxide won't remove your blackheads. If you have acne on your back that's causing pimples, cysts, or pustules, the benzoyl peroxide would help by removing the bacteria that's causing them. If you have a lot of blackheads that aren't responding to skin care products, talk with the dermatologist about microdermabrasion. The technician will drag a small machine over your back that sprays very tiny crystals over your skin. The machine also sucks up the crystals and dead cells from the surface of your skin. Your skin will be smoother and feel softer after the microdermabrasion.
Summary:
Wash your back with salicylic acid and glycolic acid cleansers. Scrub your back with a gentle exfoliant once or twice a week. Spread OTC retinoid cream or gel after washing your back. Avoid using products that contain benzoyl peroxide. Ask your dermatologist about microdermabrasion.