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Old 06-17-2008, 08:56 PM
 
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Quote:
Originally Posted by mjb62676 View Post
At least now I think I know what's caused a couple of curious brown spots in our lawn. I couldn't figure it out because I hadn't seen June Bugs (these are the adult forms of the grubs I'm used to causing lawn damage).

I have heard of using the traps for these beetles, but after a little research, it seems those might attract even more of them.
The idea of the traps is to attract them so they are killed. They work very well, as I've used them over the years.
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Old 08-04-2008, 04:46 PM
 
Location: Road Warrior
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Wow I didn't know Knoxville had that problem ... from Wikipedia ... sounds like several good methods that won't harm the natural environment.

During the larval stage, the Japanese beetle lives in lawns and other grasslands, where it eats the roots of grass. During that stage, it is susceptible to a fatal disease called milky spore disease, caused by a bacterium called milky spore, Paenibacillus (formerly Bacillus) popilliae. The USDA developed this biological control and it is commercially available in powder form for application to lawn areas. Standard applications (low density across a broad area) take from one to five years to establish maximal protection against larval survival (depending on climate), expanding through the soil through repeated rounds of infection, in-host multiplication, release from killed host, and infection. Typically proper application can lead to a 15-20 year period of protection.

Research performed by many US extension service branches has shown that pheromone traps may attract more beetles than they catch, and so they have fallen out of favor.[3] Natural repellents include catnip, chives, garlic, and tansy[4], as well as the remains of dead beetles. Additionally, when present in small numbers, the beetles may be manually controlled using a soap-water spray mixture.

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