Grubs

• In late June or July, the Japanese beetle lays its eggs in the soil. Eggs will hatch in about two weeks. The grub larvae start to feed on the roots of grasses, food crops and plants. If left untreated, grubs can wipe out lawns, plants and food crops. Milky spore is one effective treatment for killing the grub population.
  
  

Predators

• Predators such as skunks, moles and raccoons will come to feed on the grubs and do more damage to plants and grasses. Predators dig holes about 1/3 inch in diameter about 3 inches deep in the soil to feed on the grubs. Using milky spore to eliminate the grub population will also send the predators somewhere else to feed.
  
  

Milky Spore Treatment

• Milky spore disease is applied to infected lawns. The spores soak into the ground. Grubs eat the bacteria as they are eating the roots of plants, food crops and grasses. The bacteria enter the grubs and slowly kill it. After the grub dies, it releases more bacteria into the soil. This provides continued protection for future years.
  
  

Milky Spore Application

• Milky spore is applied by the teaspoon or using a drop spreader. If you only have spotty areas of grub infestation, you can use milky spore powder in a can. The powder is applied every 4 feet in a checkerboard pattern with a measuring spoon. Lawns and gardens that are heavily populated with grubs can be treated with milky spore spreader mix in a bag using a drop spreader, but not a broadcast spreader.