What types of pest control are most commonly used on cotton?

Question

I need to know several things about the production/production cost of cotton: machinery used (other than cotton gin), the labor costs, demand, and the main type of pest control used

Answer 1

The main type of pest control used on cotton crops are pesticides. The top five are: cyanide, dicofol, naled, propargite, and trifluralin.

Harvesting: The cotton picker (no, not people, but a machine) and the cotton stripper are most commonly used.

Labor costs: didn't find costs, but this statement by Wikipedia
Cotton production is very efficient, in the sense that ten percent or less of the weight is lost in subsequent processing to convert the raw cotton bolls into pure fiber.

Wikipedia has a nice article ... you might want to check there for more information.