Mar 13, 2015. This bulletin is to remind marijuana businesses that pesticides and agricultural chemicals must be used in accordance with the product label and with all applicable federal, state, and local laws, rules, and regulations. Improper use of pesticides on marijuana can raise serious public health concerns.
1. An inborn pattern of behavior that is characteristic of a species and is often a response to specific environmental stimuli: the spawning instinct in salmon; altruistic instincts in social animals. 2. A powerful motivation or impulse.
Biology. any natural or artificial process that results in differential reproduction among the members of a population so that the inheritable traits of only certain individuals are passed on, or are passed on in greater proportion, to succeeding generations. Compare natural selection, sexual selection, kin selection, artificial selection. 5.