San Diego marijuana clones are sold in many of the places you ll find seeds, but know that a plant grown from a seed has the capability of yielding more than a cloned offspring can, as a tap root is naturally produced when using seeds. Cannabis seeds will often be confiscated if they are found by mail carriers. The GDD model can be used to time a management method to control a given pest if its GDD requirements are known.  Source: <a href=https://pixeljoint.com/pixelart/153099.htm>https://pixeljoint.com/pixelart/153099.htm</a>