Crops include wheat, grapes, flowers, chickpeas, alfalfa and walnuts. The main crops include corn, beans, chilli peppers, apples, alfalfa, and sorghum. Hard winter wheat, corn, milo, alfalfa and cotton are common crops. It has produced commodity crops of cotton, wheat, barley, alfalfa and pecans. Crops such as alfalfa and wheat are also cultivated. Other important crops include beans, animal feed, alfalfa and sugar cane. However, some crops of sorghum, alfalfa, peanuts and fruits are produced. In agriculture, permethrin is mainly used on cotton, wheat, maize, and alfalfa crops. Many dairy farms also grow their own feed, typically including corn, alfalfa, and hay. Frankincense, wheat, barley, alfalfa, and millet was also produced and exported from Aden. Major crops for Kern County include&colon; grapes, citrus, almonds, carrots, alfalfa, cotton, and roses. During this period, crops of apples, pears and alfalfa became plentiful. They also like to feed on alfalfa and clover. Roundup Ready alfalfa, a genetically modified variety, was released by Forage Genetics International in 2005. Entomologists also compared grazing lambs to insecticides for insect control in winter alfalfa.