- 1). Remove any old turf grass from new garden beds at least one year prior to planting. Keep the bed well-tilled until you plant the vegetables. Grubs prefer grass roots and will leave soil areas where there is no food.
- 2). Water lawn areas deeply and only as necessary. Frequent, shallow watering is more likely to keep the soil surface overly moist, making the area a prime breeding ground for grubs.
- 3). Apply Bacillus popilliae powder to infested areas at the rate of 2 tbsp. every 2 square feet. Bacillus popilliae is a naturally occurring bacteria that kills grubs without harming birds or plants.
- 4). Spray the lawn with a beneficial nematode spray, available from garden suppliers. The nematodes feed on the grubs, but they do not damage plants.
- 5). Water the area immediately after applying Bacillus popilliae powder or a nematode spray. The water forces the bacteria or nematodes into the root zone of the soil, where they can attack the grubs.
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