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Lawn & Garden

Description
White grubs are the larvae of beetles. The larvae all have six strong legs near the head, and are white. They vary in other characteristics such as size, head color, and hair patterns on the body. These grubs feed on roots of various plants. Your garden plants, lawn and even potted plants can be attacked by grubs.

Life cycle
In general, white grubs have a one or two year life cycle, depending on the type of grub. The following describes a one year life cycle.
Spring - The grubs are fully grown larvae and are actively feeding.
Summer - The grubs turn into pupae and pupate into beetles. This generally occurs around June in the northern US and Canada.
The beetles only live for about a week, mating and laying eggs. These eggs hatch a few weeks later.

Fall - The new grubs feed until temperatures drop and they burrow deep in the soil to avoid freezing, and emerge the following spring.

Damage
Many grubs only cause minor damage and control strategies are not required.
There are a few grubs, like European Chafer, that commonly cause extensive damage to lawns. The grubs eat the roots of the lawn, and the lawn dies. As few as five grubs per square foot can cause extensive damage.
Major damage can also occur when raccoons, skunks, and crows rip the lawn apart while feeding on the grubs.

Damage Control
The most important thing to do to reduce grub damage is to ensure a healthy, robust lawn. This means regular feedings and annual core aeration to encourage a strong, dense root system. If the lawn has a dense root system, it will tolerate minor feeding by the grubs

Beneficial Insects - Predatory Nematodes
Predatory nematodes are naturally occurring microscopic roundworms that attack soil larvae like white grubs. They are best used as a preventative application applied to newly hatched larvae. This means that the best time to apply the nematodes to white grubs like European Chafer is in late April or May and late August into early October depending on geographic location.
The nematodes will not control all the grubs in the soil, but will reduce the grub populations and thereby reduce any potential lawn damage.
They are naturally occurring in the soil, but we inundate the soil with the nematodes in order to achieve infection of the larvae.

There are a few factors to consider when applying nematodes.
1. Apply the nematodes to moist soil. If applied to dry soil, the nematodes will die. We recommend a
    heavy watering prior to the application of nematodes to not only wet out the soil and thatch, but
    also to drive the grubs closer to the surface and closer to the nematodes.
2. Avoid applying nematodes during bright sunny days. UV light kills nematodes, so it is best to
    apply them early or late in the day when light levels are low, or during an overcast day.
3. Water the nematodes into the soil as soon as possible. Water carries the nematodes off the
    leaves of the lawn into the soil where the grubs live. Core aeration prior to an application will
    facilitate the movement of the grubs into the root zone.
4. A globe of Nematodes will cover approx 3000 sq
5. The Nematode packaging is completely biodegradable the wrapper is made of rice, the globe is
    made of Potato starch both can be tossed directing in your garden or compost pile

Application
The Nematodes must be applied with a clean unused hose end sprayer like the Ortho Dial-n-Sprayer 5050-516 with a setting of #6 on the dial. Empty the package of Nematode into the sprayer, add a small amount of water and mix well. When thoroughly mix fill the remaining container with water and attach the lid.
Start spraying on the worst damaged area and move out from there until sprayer is empty.

Animal Damage - Raccoons, Skunks, and Crows
Raccoons, skunks, and crows love eating white grubs. They must taste like the finest prawns because these animals will dig, scratch and peck all night in order to have a feast of grubs. Often the grub population is not high enough to cause significant damage, but the animal feeding results in extensive damage.
The best strategy is to chase them off your lawn. This can be accomplished with a motion detector sprinkler. The sprinkler can be set to spray water when anything moves within its field of view. Raccoons don't like getting wet.
They can be purchased at Lee Valley Hardware.
A dog would be another option; however, it seems a little extreme. There is also the skunk factor to consider. Dogs and skunks generally do not get along well.
If you suspect that you have a white grub problem, but are unsure, contact your local Nutri-Lawn and we'll come out and take a look for you.

Early Spring ( February - April )

Weed Prevention

- Scotts Turf Builder Weed Prevent Corn Gluten Meal Herbicide:
- Dandelion and large crabgrass inhibition.
- Large crabgrass seeds germinate when soil reaches 12.8C.
- Apply to established perennial ryegrass and Kentucky bluegrass turf in early
  spring two weeks before large crabgrass seed germination.




Fertilizer
- Scotts Turf Builder Lawn Fertilizer 30-0-3
- Scotts Turf Builder PRO Lawn Fertilizer 32-0-4
- Apply in any growing season to any grass type, including newly seeded and
  sodded areas.
- Can be applied to wet or dry lawns
- Apply 4 annual feedings. Allow six to eight weeks between feedings.
- This product is recommended for use as part of a complete lawn feeding
  program.

Grass Seed
- Scotts Pure Premium Grass Seed (Sun & Shade)
- Spring and fall are the best time to plant.
- Seed germinates best when temperatures are consistently 15- 26C (60- 80F).
- Early spring planting generally results in better establishment than late spring.

Lawn Soil
- Scotts Lawn Soil 0.08-0.03-0.02
- Improves grass seed germination by creating an excellent environment to grow a thick, beautiful
  lawn.


Late Spring - ( May - June )
Fertilizer
- Scotts Turf Builder Lawn Fertilizer 30-0-3
- Scotts Turf Builder PRO Lawn Fertilizer 32-0-4
- Apply in any growing season to any grass type, including newly seeded and sodded areas.
- Can be applied to wet or dry lawns.
- Apply 4 annual feedings. Allow six to eight weeks between feedings.
- This product is recommended for use as part of a complete lawn feeding program.


Early Fall ( August - September )
Fertilizer
- Scotts Turf Builder Lawn Fertilizer 30-0-3
- Scotts Turf Builder PRO Lawn Fertilizer 32-0-4
- Apply in any growing season to any grass type, including newly seeded and sodded areas.
- Can be applied to wet or dry lawns.
- Apply 4 annual feedings. Allow six to eight weeks between feedings.
- This product is recommended for use as part of a complete lawn feeding program


Late Fall ( October - November )
Fertilizer
- Scotts Turf Builder Winter care Lawn Fertilizer 30-0-9
- Scotts Turf Builder PRO Winter care Lawn Fertilizer 32-0-10
- Apply in any growing season to any grass type, including newly seeded and sodded areas.
- Can be applied to wet or dry lawns.
- Apply four annual feedings. Allow six to eight weeks between feedings.
- This product is recommended for use as part of a complete lawn feeding program.

Grass Seed
- Scotts Pure Premium Grass Seed (Sun & Shade)
- Spring and fall are the best time to plant.
- Seed germinates best when temperatures are consistently 15-26C (60 to 80F)
- Early spring planting generally results in better establishment than late spring.


Have a lawn care question

Ask Mark Cullen

At


www.markcullen.com


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