Jap Beetles !!!

Darn things are everywhere this year. Twice as many as normal. Those bag traps work great but what a scam. A plastic bag, a chunk of plastic and a little lure for $6+ I have two on my property and I had so many in one that the bag was filled almost to the top. The other was filled to the neck in the bag. I think I'm going to design my own traps and just buy the lure next year.

I’ve got the same issue , I don’t know what else to do,,, I’ve put sevin dust, bug traps…. And it doesn’t seem to have phased them one bit,,, they are killing my beans,,, any suggestions??

Those bag traps are luring them to YOUR property. If your going to use them put them down the road away from what your trying to protect. I spray sevin on my apple trees and garden and it works for me. We also use it in the vineyard

Yep, I spray the vineyard, garden, fruit trees and ferns with Sevin and I hang the beetle traps on the property line. Last night I sprayed the vineyard and it sounded like rain with all of them falling off the leaves.

Make sure to get the Sevin with Zeta-Cyperethrin in it. Especially if it is getting close topicking/ eating time. The phi on that Sevin is only one day on most stuff, but be sure to follow the lable, as it is more for a lot of nuts and seeds.

my neighbors use those , dump them out every couple days and hang them back up

a few ways to go dumping them they put them in a trash bag and tie it off tite

but boiling water or a bucket of #2 would work also

Get a cheap plastic carboy, a large funnel, a trap kit .

put enough water in the carboy to keep the wind from blowing it over.

Put the funnel in the top of the carboy.

Put the "X" together with the lure and place it in the funnel.

Put the trap upwind from the garden far enough that the bugs will bypass the good stuff and go to the trap.

In the end, you are going to have one heck of a stinky bottle of grody slime.

In the fall, pour the contents of the bottle in the heat vent of your enemy's car.

Spray spray and more spray. Every summer they swarm my Stella cherries. Seem to mostly leave eveything else alone. Just try to keep up with it after every rain.

The bag traps were fun...and my chickens loved a few pounds of beetles every day but yeah it sure seemed like the attracted them, destroying my raspberries.

Last fall I put Milky Spores down (research it....it kills the larva in the soil) and followed up with Seven once a week on my raspberries. So far the berries are coming in strong and only a rogue beetle once in awhile.

Milky Spore isn't real cheap but seems that's about the only thing that stops the cycle.

About 3 years ago, I caught a 5 gallon bucket full in a couple traps around my blueberries. Last year, I did not see even one Japanese beetle. Blueberries are getting ripe now and I have only seen 1 beetle so far.

Wow your infested!

The pheromone in that trap can travel down wind for a half mile or more. Give them to your neighbors up wind of you that should help.

the problem with milky spore is you need to treat a considerable distance downwind of preferred plants.

if that isn't on your property...

Milky spore is also only 20-30% effective.

Few years back we went to a University seminar on JB's. They gave us some designs for big JB traps.......trash cans. I modified it to fit 5 gallon buckets and could catch several per day. Didn't help and decided trapping is a bad idea. Neighbor had about 8 of these setup in a line and on a good day, there was a visible river of beetles coming at it from downwind. A swarm around the trap like a beehive. Between the neighbor and me, we could have filled a dumpster with em.......once a week.

The commercial versions had two pheromon baits....one male....one female. I always thought it would be a good idea to divide and conquer. Put a female bait in one spot. Male in another. Catch and destroy the females. Let the males flail about doing nothing (unless there happened to be some gay guys in the bunch.....target rich environment for them). But we never tried it.

Best solution to date is a spray with acetimaprid, an nicotine product that is lethal to chewing insects. Local Amish group uses this product to spray all their melons and squash for squash bugs. They use this.....and it works the same for the Japanese beetles.

https://www.domyown.com/assail-30sg-insecticide-p-21765.html

Ortho used to sell same chemical in a product called Fruit and Vegetable spray, which is what I'm using. They took it off the market (concern about bees.....more PR move than actual harm to bees). Supposed to be one of the safest to use for bees. Nicotine gets on leaves, beetles eat it, they die. Sprayed an apple tree last year. My tree only feet away from neighbors. Mine was till green after season and neighbors trees were stripped bare. We have taken to treating the plants we want to protect and let the others go. Numbers and damage are now way down from when we were using the traps.

There are 3 versions of these nicotine products. The one I use a short term foliar spray that is absorbed into the leaf. Lasts a week or so and rain does not wash it off. Another goes on bark of tree, which absorbs it and puts it in leaves. Third is applied to soil around drip line. Taken up by roots and puts it into leaves. That one is season long. Heavy duty.

An idea I had for the latter would be to take a far off, isolated sacrificial tree......elm, pin oak or other, something they really like, and treat the tree with the heavy duty stuff. Then put a trap scent pellet in the tree. Draw them to the remote site and let the tree kill them. Never tried that either.

That thread title is racist !!!

You'd better clean it up before
Japanese apologists see it.

w

Yet another idea was to put the traps near a body of water. Let the fish eat em. I asked research guys about it somebody had actually tried it. Said the fish went wild for a day or two, then got full and quit. Beetles kept piling up........rolling balls of them until the died. Then entire surface of lake was covered with them. Floating rafts of dead bugs.....blowing from one side to the other.

Might still try it with a flowing river or stream.......more fish and let them drift downstream on the current.

You know how much I care about being politically correct.

I had them a couple years ago in the sweetcorn, i turned on the sprinklers and left them on until the point the ground was saturated and basically flooded. The beetles left and never came back, i heard somewhere they dig in the ground to lay there eggs and apparently they didn’t like it flooded and they moved on.

I bought a Japanese beetle trap a few days ago. There were beetles everywhere in my garden. The bag has 3 prepunched holes on each side of the bag about an inch from the the bottom of the bag. I have seen several beetles struggle for a while but they manage to get out of the holes. I don't understand why they would have put these holes in the bag. I solved the problem by removing the bag and smashing the beetles with my foot. The smashed beetles are now blocking the holes so the newbies can't escape. I wonder if the maker of this trap even field tested it to see that the holes were too big. Again, I see no purpose for the holes unless it is the let rain water drain out. The holes definitely need to be much smaller if that is their purpose.