is it unwise to reuse this straw?

[tjg911]

a few years ago i divided my garden into 4 quarters and plant vegetables of the same family in each quarter so this allows me to practice a 4 year rotation in my garden. each year i keep the straw i used for mulch on the tomatoes and peppers and use it for the garlic and onions the next year - in 2013, garlic and onions will be planted in the quarter where the tomatoes and peppers were this year. this year my tomatoes got late blight. i'm going to toss all fruits on the ground but i may miss some of the cherry tomatoes.

i know that late blight can over winter under ground in infected potatoes and resurface the following year but not so for tomatoes. despite that is there any reason to worry that the straw would retain the late blight spores and reinfect me next year? 2013 tomatoes will be at the least 5' and the most 15' away from where they grew this year.

straw is $9 a bale so it isn't cheap here and the old straw works great the next year for mulching the alliums, i hate to waste it but for $9 i sure don't want to have late blight again.

tom