If you are one of the unlucky few this summer season that has discovered grub related lawn damage than please read on. Everyone loves a beautiful healthy lawn that makes a property stand out, but you should know that your lawn can be destroyed in just a few days if white grubs (in particular) are allowed to feed freely on your lawn’s root zone. Grubs are the larval stage (four stages of development = egg, larva, pupa and adult) of various scarab/flying beetles that call your lawn and landscape home. The main beetle varieties found in Northern Illinois are the masked chafer and Japanese beetle. Several other beetle varieties include Asiatic garden beetle, European chafer, green June beetle, May and June beetles and Oriental beetle. Grubs can be described as dirty white colored, soft bodied, and robust with a brown head and six well-developed legs, with exception of green June beetle grubs, which do not have well developed legs. When the turf is lifted to expose the grubs, they usually will be lying on their sides in a C-shaped position. The life cycles of the above mentioned beetles are completed in 12 months with the exception of the common May or June beetle, which has a three-year life cycle. Adult beetles lay eggs in the ground during the summer. As soon as grubs hatch, they start feeding on the lawn roots until cold weather drives them two to eight inches deeper into the soil where they overwinter. As temperatures warm in the spring, the grubs move up from the lower soil regions and resume feeding near the surface until they become mature and pupate from May through early-June. Later emergence can occur and is dependent on local weather conditions. Heavy white grub infestations can destroy grass roots, causing the affected area to become spongy, which allows the sod to be rolled back like a piece of carpet. Even though grub infestations are not always obvious, damage is routinely discovered in spring (April or May) and late summer and fall (September and October). When you see grub eating skunks, raccoon’s or crows in your yard you need to inspect your lawn to see if grub populations are beyond 5-10 grubs per square foot. Please keep in mind that grubs do not typically appear in shade lawns. Since adult beetles usually lay eggs in full-sun green lawn areas with adequate moisture, if your lawn is dry, dormant and/or poorly rooted you will have little risk of grub damage. It is highly recommended to prevent grub damage by applying a preventative insecticide such as Imidacloprid (Merit) between late June and the beginning of August seasonally. However, if no preventative insecticide is applied and a grub outbreak is discovered than a curative insecticide like Trichlorfon (Dylox) is highly recommended to prevent large scale turf damage. If significant grub damage has occurred, the lawn will need some renovation work in early fall or the following spring to rebuild lawn density. If you suspect your lawn has grubs, please contact Pacocha Landscaping Services, Inc. to schedule an on-site visit to have our team professionally analyze your lawn and offer control and repair recommendations for your review.
The winter’s in Chicago and it’s surrounding suburbs have become very unpredictable to say the least. Even though meteorologists do their best to provide “forecasts” of anticipated winter weather, we just never know for sure. As property owners we must prepare well in advance for winters worst to ensure our residential, commercial or industrial properties are kept clear of snow and ice. Even though every property is different and service expectations vary, here are several common ways to purchase snow and ice management services .
- Unlimited Seasonal Contract: Any/all snow plowing, shoveling, ice melt applications, etc. will be performed for a fixed non-fluctuating seasonal fee. Normally invoiced in full at beginning of season or monthly (November – March).
- Limited Seasonal Contract: Limited number of snow plowing, shoveling and/or ice melt applications will be performed before incurring an additional predetermined fee (per service, per accumulated inch, per hour, etc.). Normally if service exceeds specified limited contract quantities (number of service visits, applications, snow accumulation, etc.), client will be invoiced for additional predetermined fees at the end of a calendar month, season, etc..
- Per Inch: Snow plowing and/or shoveling services are performed and depending on actual snow accumulation at time of service (determined on-site or by third party meteorologist), client is invoiced for each individual snow clearing visit at the predetermined contracted rate (i.e. 1″-3.9″ = $10.00, 4.0-7.9″ = $15.00, 8.0-11.9″= $25.00, etc.)
- Per Application: Ice melt applications are made before/during/after winter precipitation has occurred. Client is invoiced for each individual ice melt application property visit made. Depending on site conditions, budget, temperatures, etc. multiple ice melt materials are commonly used (sodium chloride, calcium chloride, magnesium chloride, etc.)
- Per Event: Any/all snow plowing, shoveling, ice melt applications, etc. are performed and invoiced at the end of a snow event. Usually each “event” is defined as continuous snow fall beyond 2″ and within a 24 hour period)
- Time & Materials: Any/all snow plowing, shoveling, ice melt applications, etc. are performed and invoiced according to predetermined hourly and/or material rates.
- As Needed Only: Any/all snow plowing, shoveling, ice melt applications, etc. are requested by the client normally after winter precipitation has occurred. Pricing for needed services are normally provided just before work begins on-site. In my opinion, this is the most unpredictable and most expensive way to purchase snow and ice management services.
- Any combination of the above
If you maintain a lawn that happens to benefit from full sun exposure (not shaded) and has become weakened from heat and drought stress you need to be aware of sod webworm and the damage it can cause. This small sod webworm caterpillar (5/8″-1″ in length) can chew off leaves and stems of your cool-season grasses including Kentucky bluegrass, most fescues, perennial ryegrass and bentgrass. It will cause general lawn thinning, followed by small patches of brown and finally leaving behind closely cut/cropped areas. A lawn that is healthy and well irrigated will often tolerate and recover from sod webworm scalping. Weak or drought stressed lawns that have been clipped short by sod webworm may be killed via sun exposure to the crowns of the plant. Adult sod webworm moths (lawn moths) are small whitish, dull gray or tan colored moths that hover over turfgrass at dusk. As these small sod webworm moths flutter across the lawn females drop eggs during flight that settle in the upper thatch layer of your lawn. As many as 500 eggs are laid during a life span of usually less than 14 days. Depending on temperatures, eggs hatch in 4 to 20 days and the larvae develop through usually 6 to 8 larval stages in 4 to 7 weeks. The larvae are beige, gray, brown or a greenish color (depending upon species) with a brownish head. The older larvae chew down foliage around their burrows mainly at night. Most sod webworm have two generations per year. Sod webworm are fairly easy to control on a curative, as-needed basis. Insecticide controls are directed against the feeding larvae, not the moths. A healthy, vigorous turf, balanced fertility and adequate irrigation during dry periods will enhance your lawn’s tolerance to sod webworm feeding. As always, be sure to contact a local lawn professional to help identify sod webworm, evaluate treatment options and analyze if lawn repairs will be needed.