A Homeowner's Handbook - Recognizing Life Stages - Homeowner Controls for Japanese Beetle - Surveying Your Property - Communication as a Tool for Control - Mechanical Traps - Biological Control - Chemical Control Methods
To control the Japanese beetle, several potential tactics are available. The choice of method will reflect the management objectives and control philosophy of the homeowner.Chemical Controls
Homeowners who decide to use chemical methods in an IPM approach to Japanese beetle management should base their decision on several factors. Choosing what pesticide to apply and when to apply it comes down to a value judgment for the individual. First, you must assess the risks and benefits of pesticide use. Correct timing and application are probably the most essential elements for success with pesticide applications. Because pesticides are toxic materials, users must read and follow label directions exactly!
Each State has its own agricultural chemicals handbook, updated yearly for appropriate control recommendations. The following chemicals are effective for use in the control of the Japanese beetle adult and its grubs:
Chemicals for Adults:
- Carbaryl
- Malathion
- Methoxychlor
- Rotenone
Chemicals for Larvae:
- Imidacloprid (Merit™ Insecticide for turf; Marathon™ for nursery use)
- Bendiocarb
- Isofenphos
- Chlorpyrifos
- Diazinon
These lists do not include all materials registered for Japanese beetle control. For further details regarding chemical controls, consult your local Cooperative Extension Service. Before using any of these chemicals, check the label for particular formulations registered for Japanese beetles, read the entire label, and carefully follow application instructions regarding dosage and rate.
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