In order to have effective weed control, it is crucial that you identify the weeds in your field accurately. One great tool that will aid you in this process can be accessed here. In addition, more information about weed management in almonds, pistachios, and other agricultural commodities can be found here.
Field Weed ID Handbook
Thanks to the University of Wyoming Extension, Weeds of the West is available and is an excellent tool in identifying weeds in the field. This book is ideal for identifying plants that compete with native plants, horticultural and agricultural crops as well as those that can poison livestock and people.