My turnips are getting white splotches on the greens. Can I mow them. And will they grow back?
It seems to be a fungus problem. Use wettable sulfur, neem oil, garlic oil, lavender oil, to control the fungus. It is safe to remove infected growth, and will grow back. It is recommended to treat the area before consuming. This article will help: https://www.gardeningknowhow.com/edible/vegetables/cabbage/cruciferous-leaf-spot.htm
Working with a girl scout troop to grow winter vegetables in raised beds.
It is a bit late, but you can still get a decent enough harvest for them to get the feel of the project. I could also recommend garlic! Most are very cold tolerant, and can be planted in September and October for a good harvest before the summer. Snow and Snap peas are also a fun, and easy project for cool weather.
Here is an article for more information: https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-7/planting-fall-gardens-in-zone-7.htm
I have a two and one half foot raised bed. The bottom half is old soil and the top half is new. It is the first planting and started in June
I'm assuming the maggots have laid eggs in the lower soil layer. I think it's safe to eat the small ones that don't have maggots.
Here's a good article that will help you know how to get rid of these creatures: https://www.gardeningknowhow.com/plant-problems/pests/insects/root-maggot-control.htm
I need to know this because I have an experiment to do for one of my classes, and google doesn't provide a clear answer for this.
The reason that google does not provide an answer is that it must be obtained through experimentation.
Generally, you will add enough water to moisten the soil, but not leave it wet. Keep it that way until germination, then, back off of the water a little.
But how much will depend on the factors surrounding your experiment.