How do I control Japanese beetles on my grapevines?

Question:

How do I control Japanese beetles on my grapevines?

Answer:

In home gardens, small numbers of Japanese beetles can be controlled by handpicking.  The best time to physically remove Japanese beetles is early morning when the beetles are sluggish.  Collect or shake beetles into a bucket of soapy water and discard. 

If handpicking is not feasible, applications of an insecticide, such as carbaryl (Sevin), malathion, or permethrin, can reduce Japanese beetle damage.  Repeated applications will likely be necessary because of the short residual effect of the insecticides.  Be sure to observe the harvest waiting interval when applying insecticides to grapes and other edible fruits.