The Nipponese beetle ( Popillia japonica ) causes widespread destruction on garden plants , particularly rose wine , throughout the eastern United States but can be controlled with moderate persistence . The beetles grow as grubs in lawn and turf grasses . They quickly spread as beetles to garden plants . More than 300 plant variety show are susceptible to the Nipponese beetle , but one of their favourite is the rose bush . A lift bush under siege by the Japanese beetle will quickly lose its peak and leave , so killing the plague early is paramount to the rose bush ’s health .
Step 1
Pluck Japanese beetles by hand and submerge them in soapy piss . Mix the pee with 25 percentage dish soap and 75 percent water . beetle should never be tolerate to accumulate on a rose George Herbert Walker Bush because the beetle ' presence will quickly draw in other beetles and the infestation will become life-threatening . If you see several beetle on the rose bush , simply hold the genus Pan of soapy water under the plant and gently shake the rose bush so the beetle pass into the soapy water supply to drown .
Step 2
Spray the rose bushes using Neem oil colour . Neem oil is available at garden supplying storehouse and many health solid food stock . It is an constitutional and good oil that will annul Japanese beetles for three to four day and then must be reapplied .
Step 3
Wash the rosaceous bush using insecticidal scoop specifically formulated for Japanese beetle infestations . Insecticidal soaps are available at many garden supply stores . The soap is apply to the industrial plant and hose down off . It will give up to a workweek of protection against the Japanese beetle and is is far less toxic than many pesticides .
Step 4
Tip
Adult Japanese beetle pose a scourge to roseate Bush , but the chuck do not irritate the plant
Warning
Japanese beetle traps are wide sold to pull the beetles . Unfortunately , the University of Kentucky Entomology Department has conducted research that shows the traps attract far more beetles than they in reality kill , which leaves plants more susceptible to a large plague .
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