Japanese Beetles cause lawn and garden damage in two different ways. As grubs, they spend their first 10 months in the soil, feeding on the roots of turfgrasses and vegetable seedlings. Grubs can survive in almost any soil, but prefer the areas you’ve worked hard to make quality turf. Weakened roots, of course, cripple your plants. Adult beetles emerge from the ground and begin feeding on plants in June. Adults feed on about 300 species of plants, devouring leaves, flowers, and overripe or wounded fruit. While a single beetle does not eat much, severe damage is caused by groups starting at the top of the plant and working downwards. The beetles leave the plant with skeletal-looking leaves, and the plant will often at first glance appear scorched as if by fire. Since they prefer to feed in groups, the presence of beetles on a plant attracts more beetles- an overwhelming situation for any gardener. What help is there for your Japanese Beetle battle?
Bayer Grub Killer or Grub Control Plus:
Granules, a ground application to kill Japanese Beetle grubs while still in the soil. Apply May through mid-August with a spreader to lawns, flower beds, trees, shrubs- not for use in vegetable gardens.
Now is the time to apply Season Long Grub Control!
Bonide Beetle Bagger:
A bag, with 2 different types of lure (one pheromone, one food) to attract both male and female beetles. They climb into the bag and can’t get out; you dispose of bag when full.
One gardener suggests freezing the full bag and sprinkling the dead beetles back into the yard as bird food. As beetles attract more beetles, set up the bag AWAY from the plant you are protecting!
