We live in wooded rural area and have heavy deer population. Best thing we have found to keep deer off plants and rubbing bark off trees is human urine. Certain times of the year is the worst so I collect my pee and using a pump sprayer we spray tree bark, and borders of garden and flower beds. We repeat every couple of days. In past we have had good luck with melted moth crystals but we hate the smell. The urine is watered down and it doesn't smell hardly at all, to us that is
For ticks we have found liquid sevin the cheapest way to kill them out.