I'm an expert when it comes to poison Ivy
The bottom line is, is doesent matter what time of the year
its the oils on the leaf that will get you - the oil is long lasting
dead or alive, the plant will still have the oil on the leaf and stemsand anything it attaches itself to
I'm big time allergic to the stuff
these days, the best you can do is take the step program of prednisone (steroid), but the problem is it will sort of mess you up emotion wise for a week or 2
its also addictive, that's why they put you on a 4-3-2-1 pill program
But its the best stuff to get rid of it in a week or so
best you can do is to know what the plant looks like, wear long clothing, gloves, to protect exposed skin,
when you get home take a COLD shower ( hot water opens your pours for the oil to creep in)
wash clothe and boots
if you have a doggy with you, odds are they picked up the oil have it on there fur, which of course you will catch
there is no life span on this poisons oil, if you don't wash the oil away (cold water and soap) from anyhing you have worn, it will keep attacking you
you can keep catching it if you don't wash everything
Brady