japanese beetles and dawn dish soap

glennster

Well-known Member
been hearing of people using blue dawn dish soap on japanese beetles, so i figured id give it a try. i have a 50 gallon sprayer with a gas engine and a hypro pump i spray the orchard with. to keep it tractor related, some times i pull it with the farmall cub, sometimes the 240u, sometimes the john deere gt245, but never with the minnie mo 500 loader backhoe. there enough said. past years i have been using liquid sevin anywhere from 2.5 to 3.5 oz per gallon, the knock down rate was 24 hours or longer. the can do a lot of damage in that amount of time. so the other day the boogers showed up and started snacking on my trees. between the rough spring, killer frost, flood and drought, its been tough, now this. anyway, i mixed 1.5 oz of sevin with a 40 oz bottle of blue dawn dish soap and sprayed the trees. within about an hour and a half, i had beetles dropping dead on the ground. worked way better than the stronger sevin mix. next application, i will try just dawn and see what happen. i have heard 3.5 oz dawn per gallon is recommended, but i only had the one jug of dawn.
 
It might be that the Dawn causes the "wetting" of the beetle's surface making the Sevin work much better. If you have that success rate, don't change it. 3.5 OZ of Dawn in a gallon is a dramatic amount of detergent to spray on trees. I would not do that. Jim
 
jim, i know that dawn dish soap and water is used to kill wasps and also bee keepers use it to dispatch a super aggressive hive. the wooden ware can the be washed and re used.
 
I saw a guy (on youtube) use dawn mixed with water to kill stink bugs on his garden plants. He sprayed (little hand sprayer) just the bugs. He said don't spray the whole plant as you would and insecticide, just the bug. I have some on my blueberries, may have to try that.
 
It works great but only kills what gets sprayed. For our house we use a product called "Bug Stop". That works for weeks by killing them when they crawl across it. Doesn't stain or show on paint so we spray right on the house where they gather. Not sure how it would work on trees
 
I tried the Milky Spores, but I'm in a neighborhood that surrounds me, so if you can't do your neighbors lawn, it won't do no good.
 
i would need to aerial spray. waaaay to big of an area. no idea how i would spray 12 acres of timber.
 
You don't spray Milky Spores and you don't put it where the Japanese Beetles are like in the trees and tomato plants. You apply the spores to where the Beetles will lay their eggs which would be (ideally) a clipped lawn. You can purchase it at Lowe's, Ace Hardware or Wal*Mart to name just a few. It comes in a powder form. Resembles flour. Apply according to directions but I remember using a tablespoon sized measure and applied one tablespoon per square foot of lawn. I just walked back and forth until I had covered all my lawns. Once. About 25 years ago. Haven't had a Japanese Beetle since.
 
You're right. That's why I don't have neighbors near by. But, it was a neighbor some ways away that told me about the spores and how it had worked so well for him. Don't your neighbors have beetle problems? Maybe try to sell them on the idea. Yet, a lot of people, especially the highly educated, just won't listen to common folk.
 
If you'd spray enough Milky Spore to cover the flight area of a Japanese beetle you'd run up quite a big Bill$$.Get a mama Muscovy and a dozen little ones they'll clean the beetles up as they come in and a few Bantams will scratch out where the JB nest.
 
I read your posts hate to tell you but the beetles don't just lay eggs on lawns in cut grass I see them all the time all around the farm,over in the hay fields,etc etc.
 
That is why milky spores is a poor way to control the beetles.
The beetles just come over from untreated areas.
What milky spores is good for is if you have the grubs killing your lawn by eating the grass roots.
Now you are working with a controlled area and dealing with a grub; that unlike the beetles; can not fly in from miles away.
 

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