KIll them......The State of Texas has been researching this for the last 20 to 30 years. They have duplicated drought conditions, they have duplicated late births, they have duplicated it all and the results show that spikes need to die. Here is a link to the research. Read this and then let me know everyones opinion. My bet will be that a lot more spikes die....
-john
http://www.tpwd.state.tx.us/huntwild/wild/game_management/deer/index.phtml