How do you get rid of and/or prevent the Japanese beetle?

Answer 1

Japanese beetles lay their eggs in the ground. They surface when it is real warm. To rid your plants of them sprinkle 5% sevins dust on the plant. Do Not hang a beetle trap in your yard. You will attract every beetle in the neighborhood. To rid your yard of the eggs......not sure if there is a product for that. Haven't seen one. Ask your local nursery man if anything is available. m

Answer 2

Milky spore. Bt, and beneficial nematodes kill the grubs in the lawn. Milky spore works best in soil temps above 70 degrees and must be applied in more concentrated applications in the North than in more southerly climates. I have read where the recommendation is to apply Milky Spore at 4x the rate for those of us who live in a line north of Central Pennsylvania.

I have also read that applying beneficial nematodes as well as milky spore will help in controlling the grub population in lawns, which is the breeding ground for all those nasty beetles we see every year.

Neem oil, pyrethrin, ryania or rotenone are also biological controls that can be applied to the adult beetles.

Plant Four o'clocks, and larkspur which poison the beetles, who are fatally attracted to these plants. The leaves of castor bean plants also cause fatal feedings amongst the adults.

Tachnid flies and tiphia wasps are predatory beneficial insects. They will lay eggs in the grubs which will then hatch into larvae which will eat the grubs.

The main thing to keep in mind with most of these treatments is that it takes time to see an appreciable improvement in the decline of the beetles and their grubs. Patience is the key, and a multiple approach for organic control might be necessary. You will see immediate results with biological pesticides, but the long-term results will be evident with nematodes, parasitic insects, and milky spore.

Answer 3

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Answer 4

There is a great spray product called Sevin. You can find at Walmart or a hardware/garden store. There is powder form that you have to dust OR there is concentrated liquid that you hook up to your hose (I recommend the hose kind) You spray anything they get on about once every 7 days unless you have heavy rain....then you will have to do more often. My grandfather always swore by it and now I use it. Good luck!

Answer 5

Put up a sign in Japanese that says "Beetles please go to house next door". This should work because only Japanese beetles will be able to read the sign and everyone knows the Japanese are polite, so by saying please it is sure to work.

Answer 6

Sevin is the best spray for killing them. they are very hard to prevent. Do No buy the traps this just draws more to your yard.

Answer 7

Milky spore. The best cure is prevention.

Answer 8

go to like a hardware store and buy the sprays or other items that they sell for this type of problem

Answer 9

I dunno how to prevent it, but a way to get rid of it is those "bag-a-bug" things you put out in your yard. They're not very attractive as a lawn ornament, but they get the job done very well.

Answer 10

Contact you county agriculture dept.