 
 <prompt> Which one of dem dey cause defoliation: windy weather, a freeze or the tropics? Based on di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Most cotton wey dey United States, Europe and Australia dey harvest mechanically, either by cotton picker, wey be machine wey dey remove the cotton from the boll without damaging the cotton plant, or by cotton stripper, wey dey strip the entire boll off the plant. Cotton strippers dey use for areas wey too windy to grow picker varieties of cotton, and usually after application of chemical defoliant or the natural defoliation wey happen after freeze. Cotton na perennial crop for tropics, and without defoliation or freezing, the plant go continue to grow. 