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Paenibacillus popilliae
Scientific classification
Domain:
Bacteria
Phylum:
Bacillota
Class:
Bacilli
Order:
Bacillales
Family:
Paenibacillaceae
Genus:
Paenibacillus
Species:
P. popilliae
Binomial name
Paenibacillus popilliae
Dutky 1941
Synonyms
Bacillus popilliae
Paenibacillus popilliae (formerly Bacillus popilliae) is a soil-dwelling, Gram-positive, rod-shaped bacterium. It is responsible for a disease (commonly called milky spore) of the white grubs of Japanese beetles.
The adult Japanese beetles pupate in July (in the Northeast United States) and feed on flowers and leaves of shrubs and garden plants. During this adult stage, the beetles also mate and the females lay eggs in the soil in late July to early August. The eggs hatch soon afterwards and in this larval or grub stage, they feed on the roots of grass and other plants. As the weather gets cooler and winter approaches, the grubs go deeper into the soil, and feeding declines as they over-winter.
In August, when the grubs are close to the surface and feeding, they are vulnerable to infestation by milky spore. This is also the optimal time frame for turf inoculation or applications with milky spore to increase milky spore in the soil environment (there are product specific guidelines that should be followed for milky spore application).
Resident spores in the soil are swallowed by grubs during their normal pattern of feeding on roots. This ingestion of the spore by the host activates reproduction of the bacteria inside the grub. Within 7–21 days the grub will eventually die and as the grub decomposes, billions of new spores are released into the soil.
Milky spore in the soil is not harmful to beneficial insects, birds, bees, pets, or people; and milky spore, like other bacteria, is highly survivable in drought conditions but suffers in temperatures of Zone 5 and colder. [citation needed]
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it is susceptible to a fatal disease called milkyspore disease, caused by a bacterium called milkyspore, Paenibacillus (formerly Bacillus) popilliae...
organic farming also. The bacterium Paenibacillus popilliae which causes milkyspore disease has been found useful in the control of Japanese beetle, killing...
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before the adults emerge. However a bacterium present in the soil called milkyspore (Paenibacillus popilliae) causes a developmental delay in the larvae...
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viruses. On October 16, USAMRIID scientists began by examining spores that had been "in a milky white liquid" from "a field test done by the FBI's Hazardous...
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additional six until the spores are discharged. The slime mold grows on decaying wood. When the fruit bodies consist of milky white sporangia, they are...
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millions of miniature duplicates of itself, which the authors called spores. These spores attach to the faces of the entire population of New York, allowing...
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pores per millimeter, with the tubes rarely deeper than 3 mm (1⁄8 in). The milky-white stipe (stalk) has a branchy structure and becomes tough as the mushroom...
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