Evenly spread the spraying solutions over the ground area to be treated. Soil should be between 10°C and 30°C during application and for at least two weeks after. The sprayer nozzle opening should be at least 1/2 mm. To complete the lifecycle, they also lay their offspring in the dead grub (or other pest). What to avoid. A number of microorganisms live in the soil of your garden. Even the best scarifiers can make a mess of your lawn so it’s important to know what to do after scarifying the lawn to help it recover as quickly as possible.. The soil should be moist at time of application and lightly watered immediately after application. Should grass be kept moist after the nematodes have been applied? But there a few guidelines that if followed will ensure you applying at the correct time. Softer soil allows your nematodes to burrow more easily. Nemaslug is easy to apply and does not leave any unsightly residues. Do You Cut the Lawn and Weeds First Before Applying Weed & Feed?. Use deep and infrequent irrigation to encourage deep root growth. Also after applying tenacity when can the lawn go back to its watering cycle. • Turf exhibits poor growth and vigour even after fertilisers are applied (except when high levels of nitrogen are applied). Keep the soil most for the first week after application. Fight grubs naturally with beneficial nematodes, naturally occurring microscopic worms that prey on grubs. You want to insure the nematodes have a chance to get into the soil before the water is evaporated. Do not use nematodes at are past their expiration date. They are shipped in a powdery solution that mixes well in water. Also, pre-emergent herbicide must be watered in after its application … If possible, you should water your lawn or apply after a light rain for best penetration. Nematodes are unsegmented roundworms, different from earthworms, flatworms, and other worms that are more easily observed. naturally occurring microscopic worm found around the globe in soils This will help the nematodes move freely throughout the area. B) Because the nematodes are photo-sensitive we waited until there was no direct sunlight hitting both the front and back lawn areas. Keep the lawn free from insect and disease problems. The first steps are to prepare the soil for the application. When you decide to apply the nematodes wet the areas of your lawn or garden that will have nematodes applied. For best results there are special nematode sprayers that are recommended. An enemy of my enemy is my friend! When over seeding your lawn, the mistake many homeowners make is to cast out the seed over top of the existing lawn. For Nematode Grub Management, it is best to keep your lawn moist ahead of time, water them in immediately after application and keep the lawn moist for at least 2 weeks after application. Properly preparing your lawn is essential, this includes raking up any dead grass and top dressing with a good weed free topsoil or triple mix. Apply nematodes in the early morning or evening to avoid desiccation and UV radiation damage. Many kinds of nematodes live in the soil an a home lawn. When you decide to apply the nematodes wet the areas of your lawn or garden that will have nematodes applied. Grass will die under extreme nematode and environmental stress. Timing is very important when applying the nematodes. Post-application, and for up to 10 days following, continue to water your lawn to create a moist environment. Lastly, always read the expiry date and apply before they go bad because dead nematodes don’t work and it’s very hard to see if they are alive or not. By cutting the weeds you are making them want to grow faster, which in turn will make them die off quicker because they will use the herbicide we spray on them like it was regular water. Use the description and image above to help you to identify Sting Nematodes on your property. It is also best to apply them on an overcast day or in the early evening to help keep the nematodes from drying out. Before the application of the chafer grub treatment, the lawn should be mowed and spiked. One application of Nemaslug provides 300,000 nematodes for every square metre of soil, giving at least six weeks control of slugs. This height reduction should be done just before the lawn greens up, which usually occurs during late April or early May. Be sure to follow the instructions on the package in particular to water before and after the application as the nematodes need moisture to make their way into the soil. Yes, you can mow your lawn after the fertilizer application. Proper storage and handling is essential to nematode health. The nematodes need to be easily washed into the soil from the blades of the grass. Also avoid cutting your lawn too short … Avoid applying to over-saturated soil as nematodes will simply wash away and avoid applications when your soil temperature is below 10°C / 50°F if you’re using local, Canadian grown nematodes (15°C / 60°F for imported nematodes). Irrigate the area to be treated prior to application in order to a pply the nematodes to a moist lawn. We have been rearing beneficial nematodes since 1986. You can sprinkle the soil with water again after application to move the nematodes into the soil. • Avoid using pesticides on the treated area 7 days before and 7 days after nematode application. Nematodes are super easy to use, require very little work and no sprays! It is very important that you mix and apply your nematodes quickly so they don’t ‘expire’ in the can. Be sure to keep your nematodes in the fridge (but not frozen) and apply as soon as possible for best results. Hand pulling weeds is time and labor intensive. Most soil nematodes are beneficial, feeding on bacteria, fungi, or other microscopic organisms found in soil. The best way to identify them is via the damage they cause to plants, particularly their roots. Tall grass growth blocks the spray from hitting the ground where it will create a barrier between the weed seeds and soil. Nematodes hunt and feed on soil dwelling insects by entering their body, injecting them with lethal bacteria, and feeding from their insides. Beneficial Nematodes are very easy to use. The microscopic nematodes require water to penetrate into soil. There are two periods when grubs can be targeted by nematodes, in the spring  when soil temperatures are above 10°C (often early May to early June) and again in the fall before soil gets too cold (mid-late September to mid October). Apply nematodes as soon as possible for best product performance. If you have an applicator which refills your jar as you spray mix a tea bag in with your nematode concentration. Try to apply the milky spore in a dry spell so there is not too much rain washing the milky spore nematodes to another area. Answer to Nancy is 5-7 days. That will cover an area between 2000-3000 square feet (based on a heavy or light application rate). During the warmer summer months, apply nematodes in the early evening, when the intensity of light is reduced and soil temperature is lower. Answer to Wayne is 2-3 days. We use “Guardian / Lawn Patrol Nematodes” to control thrips, “fungus gnats” (relating to several thousand species of flies in the same family ) and other root zone pests. Continuous mixing should take place to prevent the nematodes from sinking to the bottom. Nematodes can be both beneficial and hazardous and are easily affected by certain fertilizers. Below you will see a figure that shows the typical life cycle of a grub, but you will have to observe your local conditions and use accordingly. Improving the Overall Health of the Lawn: Maintaining a healthy lawn is the best way to manage nematode damage in home lawns. Fertilizers should be avoided roughly 2 weeks prior to and after nematode application, because they may be adversely affected by high nitrogen content. Water the soil before and after application. There they seek out the grubs. Sting Nematodes are tiny (1/12th of an inch in length) and are basically impossible to see by the naked eye. Important: get a municipal water permit. Remember, watering your lawn before application will lower the soil temperature. This does not include the $1 bags of black earth from the box stores. An even application of lawn fertilizers is very important for achieving a uniform green lawn. This allows the nematodes to find the grubs and start to control this pest. Refill applicator until all your concentrated nematode solution has been applied. Irrigate before and after nematode applications. The nematodes will be mixed with water and applied to the lawn using a backpack sprayer. You can watch this video here. You get a whopping 10 million nematodes in an individual package. Both of my questions, cutting and watering either pre or post, strive to allow the best conditions to get the best per application. Prepare Your Lawn. Using a hose end sprayer applicator will be applying nematodes very easy, just mix a concentration, fill your applicator and spray out nematodes until the jar is empty. There are different kinds of nematodes for targeting different turf insects, but we carry the nematodes that go after grubs! Beneficial nematodes infest grubs and other pest insects that are known to destroy lawns and plants. To avoid desiccation of the nematodes: On sprayer use a maximum pressure to avoid blockage, all sieves should be removed. Nematodes need a moist environment and this means that you (may - depends on rain) have to water your lawn for a longer period in the spring to get the same effectiveness. Nemaslug uses the nematode Phasmarhabditis hermaphrodita. Cut the grass short before treatment. The grass needs to between 1 to 2 inches in length. However, application can be made using a water-can, irrigation system, knapsack or sprayer. Big difference! There is a great video that shows how to apply nematodes using a hose-end sprayer that is available at Heeman’s. The most important factor is temperature and season, you want to apply in spring and early fall while the soil temperature is above 10 degrees Celcius. Apply nematodes in the early evening or late afternoon when soil temps are lower and UV incidence is lower as well (cloudy or rainy days are good too). Best practice is applying during both to get best coverage and protection! Some of these aid in the growth and development of plants while others feed off the roots and organs of the plant and can cause serious harm. Such as: Japanese Beetles, Northern Masked Chafer, European Chafer, Rose Chafer, Fly larvae, Oriental Beetles, June Beetles, Flea beetles, Bill-bugs, Cut-worms, Army worms (Tent Caterpillars), Black Vine Weevils, Strawberry Root Weevils, Fungus Gnats, Sciarid larvae, Sod Web-worms, Girdler, Citrus Weevils, Maggots and other Dip-tera, Mole Crickets, Iris Borer, Root Maggot, Cabbage Root Maggot and Carrot Weevils. Once the area has been moistened mix the contents of the beneficial nematodes in a bucket of water and stir to break up any lumps, and let the entire solution soak for a few minutes. A) Cut your lawn short and water it really well prior to nematode application. This will help the nematodes move freely throughout the area. If using a drop-type spreader, operate it the long way of the lawn. Fall application stops the lawn damage before it gets severe. Another alternative is to keep a healthy and thick lawn, by feeding it with top soil and seeding in the early spring. If you ar… When to Mow After Spraying a Concentrated Weed Killer. The nematodes are just as effective in May but the grubs are bigger and take longer to consume. Mowing prior to applying your pre-emergent weed killer can help the spray make contact with the soil. The brown patches they leave on your lawn are an eyesore that are just ugly. Should The Soil Be Moist After The Nematode Application? If you have a lot of weeds in your lawn it is always a good idea to mow approximately 2 days after a lawn treatment is made. “Guardian / Lawn Patrol Nematodes” do not kill other types of nematodes. I must have missed reading these things in your attached literature. If possible, use a mower with a bagger to collect the clippings and remove the dead material left from winter dormancy… The mower setting should be between 2 to 2½ inches high. Mowing:Mow the lawn slightly lower than the regular summer mowing height. Often, as the grass thins out spurge and other weeds may become prominent. The poor colour of grass can be an aesthetic problem, as TV cameras regularly record highlights of rugby matches played at the grounds. Beneficial Nematodes are a naturally occurring microscopic worm found around the globe in soils. On a large lawn, with a serious weed problem, let a … Be careful not to set the mower too low, as it may scalp the lawn. During those times the insects are in a life cycle where grubs are in the soil and can be targeted. Generally speaking, water every 3-4 days if rainfall does not occur. But in order for it to recover quickly and look the best it ever has, you need to help it along. This allows the Nematodes to ‘swim’ through the soil seeking out grubs to infect and kill. After application keep the soil moist during the first two weeks for the nematodes to get establish. The toxin usually kills the host insect within a day or two. They are a living insect so the longer you wait the less effective they will be (they can die if you wait too long). Yes, the lawn should be wet for 3 to 4 day after the application. How Long Does It Take To See Results? For any lawn enthusiast the white grub is public enemy #1! The best time is in the fall when the grubs are smaller but the most common time is in the spring. Depending on the type of application, always follow directions left on your invoice after an application has been made to your lawn. This ensures most effectively that the nematodes can reach the chafer grubs, which live in the top layer of soil. Nematodes are either killed or less effective when soil temperatures are below 60oF or higher than 93° F. The best soil temperature for getting the most effective results is a range between 55&temp;F and 85&temp;F. In best conditions of moisture and temperature, predatory nematodes should be effective for 6 to 8 weeks. They are so tiny that they are best viewed under a microscope, where they look like little brownish or dark-colored roundworms. Nematodes living in soil are very small and most can only be seen with the aid of a microscope (Figure 2). This is generally enough time for seedlings and bedding plants to get well established. You'll want to completely avoid pesticides in your Ottawa lawn care before and after nematode application. Another thing that makes them hard to detect is that they live underground in sandy soils. You can apply them using a watering can, sprayer and hose attachment or misting system. Fertilizers should be avoided roughly 2 weeks prior to and after nematode application, because they may be adversely affected by high nitrogen content. • Keep the soil moist for 4 to 7 days after application to ensure best performance. This will be made easier if you’ve chosen the right time to scarify and the weather helps by providing some sun, warmth and rain.. It’s a good idea to apply your nematodes during low light periods (morning or evening are best). After application, regular watering of the treated area will provide sufficient moisture. Depending on where you are in the world the exact timing will be different. The nematodes will actually swim through the soil, so make sure it is well moistened before you apply the spore, and then add another 1/4 inch of water after you apply it. Don’t chance it, deal with them right away. First apply header strips at each end of the lawn to provide room for turning. 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