Is Milky Spore Safe? Milky spore disease is specific for Japanese beetles and it won’t harm humans, other animals, or plants. It is safe to use on lawn and ornamental plants as well as vegetable gardens. There is no risk of contamination due to runoff into bodies of water and you can use it near wells.
How quickly does Milky Spore work?
Milky Spore begins working as soon as it is applied as long as grubs are feeding. Once grubs are infected they will multiply the Spore by several billion times and spread it further. In warm climates good control can occur in one to three years. In colder areas like New England, three to five years.
Is diatomaceous earth the same as Milky Spore?
Milky spore is usually applied as a spray earlier in the year(it is temperature specific) to control certain grubs and chewing caterpillars: diatomaceous earth is a dry powder that is sprinkled on plants to kill soft bodied bugs such as slugs, aphids, etc., and can be used at any time pests are detected.