Japanese beetle(JB)/Exotic scarabs
(oriental beetle, (OB) Asiatic Garden Beetle, etc.) JB & exotic
scarab larva (grubs) live in the soil and feed on plant roots
Controls – Nematode Heterhabiditis bacteriophora (Hb). Parasites:
1) Tiphia vernalis – wasp attacks JB/OB grubs in the soil
(www.drmcbug.com) Tricks – nemas, soil temperature must be
above 60 degrees F. Critical to get healthy viable nematodes from
a fresh, good source. Can refrigerate good nemas for 2-4 weeks.
For Tiphia, Tulip poplar trees or a similar nearby nectar source
is necessary to get high rates of parasitization.
Click here to see the Tiphia video Click here for Japanese Beetles PowerPoint Presentation