Japanese Beetles

By: Christina Timm

You have probably noticed the Japanese Beatles feasting on your trees, shrubs, and flowers, but what you might not realize is they are also mating and laying eggs in your soil and turf. We are now in stage 5 of their life span which takes place from July to September as they begin to lay up to 60 eggs.


Stage 1: A dormant grub burrows deep into the soil from October to March

Stage 2: When things start to warm up in March and April the grub starts to feed on roots.

Stage 3: The grub pupates and turns into an adult Japanese Beetle after the spring feed between April and June, and only after its third summer of its life cycle.

Stage 4: The adult Japanese Beetle emerges from the soil to feed on different plants during the months of June, July, and August.

Stage 5: While continuing to feast in July, they also begin mating and laying eggs in the soil through September.

Stage 6: These eggs then hatch into grubs from August to October before going dormant to repeat the process over again in the spring.

Important to Remember: Japanese Beetles can be very destructive, however the tree, shrub, or perennial that is being affected is still structurally strong when treated properly!


Grub Beater


Japanese Beetles got you stressed out this year? Now is a great time to take control for next year. Right now is the time to apply Bonide's Grub Beater to your lawn.

Apply Grub Beater to your lawn using the proper protective wear and application rates for your area of lawn. It is very important that irrigation or rainfall is applied within 24 hours of application to activate the ingredients through the thatch. Be sure to read the label before application.