Milky spore is a bacterium (Paenibacillus (=Bacillus) popillae) that is applied to soil to infect larvae of the Japanese beetle.
Commercial Suppliers
| Company | State | Country |
| ARBICO Organics | AZ | USA |
| The Beneficial Insect Co. | NC | USA |
| Gardeners Supply Co. | VT | USA |
| Great Lakes IPM, Inc. | MI | USA |
| The Green Spot Ltd. | NH | USA |
| Natures Control | OR | USA |
| Planet Natural | MT | USA |
| Rincon-Vitova Insectaries, Inc. | CA | USA |
