Radish failure - maggots?
I am a first time veggie gardener and I'd really appreciate any advise anyone can give me on a problem I've run into with my radishes as I believe they suffered from radish maggots.
I was so excited to see the red bulbs of my radishes emerging from the soil after about 3 weeks of germination. I was checking on them daily and a few days ago noticed a little blemish on the top of one. Today I couldn't wait any longer as I was concerned for the health of my veg! I pulled the little root up and cut it open, and just as I feared a couple tiny little tunnels with wiggly little maggots, I was disgusted! So I pulled up all of the radishes (devoid of the joy I was seeking from harvesting in the long run) and many had tunnels. And the other thing I noticed was many of the plants had lots of foliage but just a tiny weenie skinny radish on the end.
So now I have a bunch of questions...
1. I have kale, chantenay carrots, and boltardy beet root growing in the same raised bed where the radishes were growing. Will these flies feed on these veggies?
2. Why did some of my radishes have lots of foliage but no radish?
3. Can I sow a different crop where the radishes were?
4. Is there any way to get rid of the maggots that may be left in the soil?
* Just a little about my growing conditions. I live in the south east in St Albans. I have been growing my radishes in a raised bed that we just built this year and filled with soil from our garden, bagged compost with John Innes, and rotted manure. I have mixed some organic fertilizer pellets into the soil before I sowed, and also fertilsed with a liquid fertiliser once during growth. It has rained quite a bit lately and I began to get a bit of moss on my soil, which I have scrapped off. I do think the soil is very wet at the moment.
Thank you very much for taking the time to look over my questions! All the best, Meredith