So, for example, travel east-west on the first application and north-south on the second. This will ensure balanced feeding over your entire St Augustine lawn. Having read this I thought it was very informative. I appreciate you spending some time and energy to put this content together. I once again find myself spending a lot of time both reading and commenting. But so what, it was still worthwhile! I started writing in the past few weeks and observed that many blogs merely rework old contenht but add very little of worth.
Audience engagement and material value are king. A properly fertilized lawn greatly reduces water consumption and insect damage. Follow the application rate on the bag. If you have a question Call Us. FYI — Most people under-fertilize St. Augustine grass thinking they will burn it. If you dont see a noticeable difference in your grass after two to three weeks of applying fertilize you did not apply enough.
Blow off any surfaces such as a driveway, cement, pool deck, etc. Most fertilize contains iron which will stain surfaces. Apply water. To maintain a healthy St. Augustine lawn, choose a complete fertilizer that delivers a high quantity of nitrogen for blade growth, phosphorus for root development, and potassium for disease and cold resistance.
This fertilizer delivers the perfect balance of nutrients without risking nitrogen overload that could damage your lawn.
In addition to being gentle on lawns, Milorganite contains iron, which encourages your St. Augustine to stay rich green in color. Augustine grass requires 2—4 pounds of nitrogen per 1, square feet annually. Regions with clay soil or a shorter growing season can thrive on 2 pounds of nitrogen yearly.
Lawns planted in sandy soil, as well as lawns with longer growing seasons, need 4 pounds of nitrogen per year. If your lawn is in a region where St. Augustine remains green year-round, such as South Florida, make your first spring fertilizer application in late—March through early-May.
This timing will provide fuel for your lawn to jumpstart its growing season. By following this schedule you can easily fertilize your St. Augustine lawn for the best results. The rate will depend on soil type. A soil test will help determine if a fertilizer containing phosphorous is required. See the section on fertilizer calculations below to determine how much granular fertilizer should be applied.
This fertilizer may be especially important if the soils are sandy. The addition of phosphorous, the middle number in the fertilizer analysis, should only be applied if recommended by a soil test. The addition of phosphorous, the middle number in the fertilizer analysis, will need to be determined by a soil test.
Potassium is needed late in the growing season as the grass goes into dormancy for added disease protection and winter hardiness. A long-term approach is needed to correct either cause, but an iron product can be added to quickly enhance turf color between the spring and summer fertilizer applications. NOTE: A yellow appearance may also develop during early spring. This could indicate an iron or manganese deficiency due to soil temperatures lagging behind air temperatures, high pH soils, or high phosphorous levels.
Spraying with liquid iron ferrous sulfate at 2 ounces in 3 to 5 gallons of water per 1, square feet or applying a chelated iron product will help to enhance turf color. Fertilizing with a micronutrient fertilizer, such as manganese sulfate, can alleviate manganese deficiencies. However, as the soil temperatures start to climb, the yellowing should slowly go away.
Lime or sulfur may also be added if a soil test indicates a need. Be aware, it could take several months for lime and sulfur applications to affect the soil pH. To determine the amount of product required to apply 1 pound of actual nitrogen per 1, square feet, divide by the first number on the fertilizer bag. This will give the number of pounds of product to apply to square feet of turf.
Irrigation: Water the lawn to prevent drought stress. Monitor the lawn on a regular basis to assess the need for irrigation. Wait to irrigate again until the lawn shows moisture stress. There are several ways to determine when the lawn needs watering. One way is to observe the lawn daily. When the turf begins to dry, it will appear to have a bluish hue.
Another method is to walk across the lawn late in the evening. If the grass blades in the footprints bounce back up, then there is plenty of moisture in the turf. If the grass in the footprints does not bounce back, then irrigate the lawn the next morning. The irrigation interval will vary from site to site depending on the environmental conditions at that site and soil type.
Localized dry spots or hot spots can be watered as needed by hand. The irrigation system should only be run when the entire lawn is dry. Insect Control: There are various insects and related pests that may infest St. Augustinegrass during the summer months. Mole crickets, chinch bugs, spittlebugs, grubs, ground pearls, and nematodes can cause considerable damage.
Each pest problem has its own management strategy and is usually handled with cultural and chemical controls. However, there can be exceptions. Mole crickets and grub eggs will usually hatch mid-summer. Insecticide applications targeted at the mole crickets in their smaller nymph stage are the most effective controls, even if damage has not yet occurred. If either of these insects was a problem early in the season, apply an insecticide during mid-July to control the younger immature insects.
Chinch bugs can be very destructive to St. Monitor the turf on a regular basis during the growing season, especially during hot, dry periods. Damage is often more severe in sunny areas near driveways, sidewalks, or roadways, where the turfgrass is under more heat stress.
A chinch bug is a small black insect with silver wings that sucks plant juices from the stem. An infestation may cause the turf to die, which will need to be replaced or allowed to grow back in.
Chinch bugs are fairly easy to control using general insecticides, but applications need to be made before the population has risen to a level where damage is occurring. Research has shown that an early season insecticide application after the turfgrass has greened-up will reduce the late season activity. When applying insecticides for chinch bug control during the summer, rotate chemical families or mode of actions to reduce the chance of pesticide resistance.
If an insect problem occurs, it is important to positively identify the problem and select the appropriate insecticide to apply. Disease Control: The most common diseases that affect St. Augustinegrass during the growing season are large patch formerly known as brown patch and gray leaf spot. Large patch is a fungal disease that is active during warm, humid spring and fall weather.
Since it is fueled by moisture, it is important to maintain a rather dry condition in the lawn by employing proper watering practices, as well as providing adequate soil drainage.
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