Japanese beetles can wreak havoc in your yard by devouring flowers and stripping the leaves off of plants. The grubs will also destroy grass by eating the roots. This is a guide about getting rid of Japanese beetles.
Solutions: Getting Rid of Japanese Beetles
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Look for metallic blue-green, long-legged beetles with coppery-colored wing covers. Adults lay eggs from June through August. Eggs hatch into fat white, comma-shaped grubs with brownish-orange heads. Grubs overwinter in the soil and pupate in June.
Adult beetles will eat most garden crops and grubs feed on grass
Adult beetles eat flowers and strip off the leaves of plants. Like all white grubs, Japanese beetle grubs prefer to feed on the tender roots of grass. Lawns develop large areas of dead brown grass that will peel back like a rug when pulled.
Organic Methods of Control:
Cultural or Mechanical
Shake beetles onto tarps placed beneath plants in the early morning.
Hand pick beetles from plants.
Cover plants with floating row covers or screens.
Interplant garlic, larkspur, tansy, rue and geranium.
Use spiked sandals on lawns to kill grubs as they feed near the surface in the late spring.
Kill eggs by allowing lawn to dry out between watering and allowing it to go dormant in the summer.
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Here are questions related to Getting Rid of Japanese Beetles.
It's once again Japanese beetle season in SW Michigan. I used to use the traps and now have been told the traps attract the beetles as well as trap them. We were also told there is no insect repellent that will kill them. What do I do to rid our outside plants and trees of these little killers before my outdoor plants are destroyed? Thank you.
Check your yard for grubs. They are white thick worms and they eat the roots of your grass. A few in your yard will not hurt but if you have a lot, they will decimate the grass. This is where Japanese beetles come from. They lay their eggs and then hatch. The first year I was at my place, I had them in droves. I put in a flower bed and every time I saw a grub I I drowned it. You can also use Neem oil. But you will always have a problem if you don't get rid of the grubs.
Can anyone tell me how to get rid of the Japanese beetles that are eating my roses? I don't know where they are coming from. I remove many every day and the next day there are just as many back again. They eat the roses and some of the leaves.
Take a milk jug (narrow neck and big body) and half fill with water. Add a squirt of dish detergent, a tablespoon or so of vinegar and the same of sugar. The beetles will go for the sweet smell, get trapped in the soapy water and die inside the bottle, and you can pour it out and start over. Cheap and easy.
Cantate in Japan (where we don't have Japanese beetles; my mom has done this for years.)