White grub a problem?

[linzelu100]

We moved to a new house in Virginia. While plowing the fields I went to inspect the soil and it is clay, like all our other gardens, but it is a richer, crumbly clay and is full of visible life. All I have ever gardened in before was barren, rock hard clay, by the time we get it more lively we have to do a military move.

I noticed lots of worms, which is good, but also a white grub I am not familiar with. There are hundreds, maybe thousands of them, which is why I am showing concern. Can anyone tell me anything about this insect? Online I got a lot of conflicting information. Some say its a sign of good composted soil, another that they are larvae of Japanese beetle (which would be bad for me, I grow 750 square feet of beans!).

Thanks for Reading.

Lindsey