milky disease

variants: or milky spore disease

Definition of milky disease

: a destructive disease of scarab beetle grubs and especially Japanese beetle larvae that is caused by spore-producing bacteria (Paenibacillus popilliae synonym Bacillus popilliae or Paenibacillus lentimorbus synonym Bacillus lentimorbus) and is marked by an the opaque, milky appearance of the infected larvae

Note: Commercial preparations containing spores of the causative bacteria are used to cause milky disease in the biological control of Japanese beetle infestations.

First Known Use of milky disease

circa 1940, in the meaning defined above

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The first known use of milky disease was circa 1940

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Cite this Entry

“Milky disease.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

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