How To Treat Japanese Beetle Grubs
Theyre near the soil surface at this point and most vulnerable to treatments.
How to treat japanese beetle grubs. Insecticides can be treated either preventatively before the grubs are seen or curatively once grub presence is verified. Come spring the grubs are much bigger and almost ready to grow into beetles which makes controlling them less likely. Japanese beetles overwinter in the grub stage.
Apply Bayer Advanced 24 Hour Grub Killer Plus for fast results. Grubs burrow deep into the soil and rest through the winter. Japanese beetle damage is typically cosmetic only the adults cause skeletonized leaves and Japanese beetle grubs cause brown patches on lawns.
Beetles emerging from non-treated grass areas can fly a considerable distance to preferred adult food plants. Ideally apply them in spring before the beetles emerge. You can purchase these nematodes under a variety of different trade names.
If you see grubs in late summer or early fall thats the best time to treat and control them. There are many different options for managing Japanese beetles. Granular residuals containing insecticides distributed on soil with a spreader are usually the best applications for Japanese beetles.
Contact a lawn and ornamental professional for guidance and assistance to control Japanese beetle populations. Healthy turf grass can typically tolerate up to 10 Japanese Beetle grubs per square foot. Japanese beetle grub damage can be confused with other problems so check under the grass to see if grubs are present.
When those grubs hatch they become Japanese beetles that will eat garden plants. The eggs hatch into grubs that will eat the roots of your grass plants Yiesla said. This is normally done with a granular grubicide applied to lawns in late summer or fall when the grubs.