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Lawn Care Grub Control

Grubs are the larvae of beetles. The pests feed on grass roots, resulting in discoloration and even death of lawns. Grubs are c-shaped, white and about 1/4 inch long. A number of options are available in the fight against grubs.
  1. Natural Control

    • You can introduce a number of natural grub predators to your lawn. They include ants, ground beetles and parasitoids such as Tiphia spp and scoliids. The larvae of parasitic wasps also feed on grubs, spinning a brown cocoon around them.

    Curative Control

    • Curative insecticides are used after grub presence is determined in the grass. These include trichlorfon, which is sold under different trade names. The recommended time to apply insecticides is between July and September. A second application is often required because the insecticide is not highly residual.

    Preventive Control

    • Imidacloprid, halofenozide, clothianidin or thiamethoxam---insecticides with extended residual properties---are often highly effective as preventive measures against grubs. The recommended time of application stretches from as early as a month prior to the expected egg-hatching period to as late as a few weeks after they have hatched, which typically occurs in July and August.