Can anyone recommend the best product for getting rid of grubs in GRASS. I would appreciate any help and advise. Thanks! Kingman, AZ
Timing is the most important thing in riding lawns of grubs. Apply a drench in March and July/August. The grub is most active and near the surface at these times
There are some beneficial insects that will take care of these for you if you put them out at the right time of the year. Here's a site that might give you more information. Also google for beneficial insects to get rid of grubs and I'm sure you will find where to get these.
White grubs are the larvae of beetles (masked chafers or June beetles) which feed on the roots of turf and other soft rotted shrubs. In general, the eggs are laid in June to early July by the adults. The adults are the bulky bodied 1/2 inch long caramel-colored beetles, which are attracted to porch lights this time of the year. They usually crawl around on the concrete, fly up towards a light, and sit looking for a mate. They are short lived as adults, and the adult beetles do not damage the turf.
The best time to control the grubs is during mid-July, when the grubs are small, have sensitive skin and are close to the surface. There are some biological controls available as well as products that contains imidacloprid. Common brand names are Merit, Bayer Advanced Lawn Grub Control, GrubEx, etc. When ingested by the grub, this product causes the grub to stop feeding. This is catastrophic for a young grub when applied in July to early August.
Here is a link that might be useful: Lawn Insect Management