1. Burleys, cigar and Virginia varieties should all be topped.
2. No more fertilizer! With flowering this close, more fertilizer will make color curing difficult.
3. 3 weeks after topping is a good minimum.
Virginia tends to ripen at 2 week intervals as you go up the plant. Burley can be stalk harvested and stalk cured when the top leaves show signs of maturity. The cigar varieties should be primed as they mature, to prevent the more fragile leaves from being damaged by bugs and weather.
4. Sun curing is your best choice for the Virginia, but the dry climate may make this difficult. Prime and box cure the cigar varieties- cardboard box with layers of newspaper or paper bag paper in between the leaves. Stalk cured the burley somewhere dark.
5. Once you have color cured, you can kiln at whatever time you can- interrupting kilning and restarting it doesn’t seem to cause any problems, but you MUST get the green color out, first!
6. Oven kiln? I’ve never tried it. Most ovens being given away don’t have precise enough temperature control on their own- so temperature probe and a separate control for the heat would be needed.
7. When topping is done, I only water enough to keep the plant from wilting, to prevent damaging the leaf or having it dry green.