June bugs are widely prevalent in North America. June bugs exist in the form of grubs when they are in the stage of larvae. The larvae come out with short hair and this aids in their movement. The eggs from which the grubs emerge are laid during winter, and thereafter the grubs make their way to the surface during spring, when they start feeding actively.
The June beetles tend to mature in June, and they are complete adults at that time. So it takes a complete year for them to emerge by spring time. The June bugs are nocturnal because they get attracted to the light, and their lifecycle lasts about three years. The first year of their life is spent underground. When the adult are large in number they feed aggressively on whatever is available in the gardens. The grub is particularly destructive to lawn grass.
They mainly feed on turf grass, lawn grass, Bermuda grass and St. Augustine grass. The lawn could start yellowing and this leads to the lawn dying eventually if the beetles feed in large numbers. The grubs that bury underground will feed on the roots of the grass, and also can destroy ornamental plants around. They are difficult to identify as they are buried underground. The maximum damage to crops and agricultural plants is done when the June beetles are in their third instar period. They come out from their pupal stage and that is when they are most hungry. The damage to the crop is also pretty quick and fast. The white grubs that are the biggest sign of infestation can be found while tilling the soil.
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