It appears that you are missing both step flashing (between the roof and the wall) and the head flashing (above the trim running parallel to the roof line). Here is the link to the Hardie Best Practic ... read more
I would wait until the first frost, that very next day spray or paint leaves with Crossbow (if spraying isn't an option, as in beds with other plants or single shoots). The sap in the stems will draw ... read more