At this point I would like to repeat the concentration ratio of the chemical treatment we were using. When I write 6 milliliters, it may not be clear how much that really is. In the bottom of a one gallon jug, this amounts to three drops the size of your thumb nail – and the one gallon solution is adequate for 1,000 square feet of application!
After some misguided spraying on my part, Chris decided he wanted to take over for me – while I went inside to wash off the stray drops that had landed in my hair (despite the hat) and on my face (despite the mask). Here are some action photos of him applying the insecticide to the facing boards, both from underneath and then from the roof, which proved an easier vantage point for a lot of the work. The new ladder worked well.