Unless you're trying for some kind of merit scholarship or PhD programme (which you vehemently aren't), the grading in grad school is pass-fail, and I doubt anyone will care even before you graduate. That professor might even recall you messed up twice, but they're unlikely to care beyond that if you're at least somewhat competent under examination. Plants get infected easier in humid climate, and you're in Swampass Central. Of all that list, only two things qualify as directly 'on you', and I seriously doubt you're the only one of the job who skipped on a meeting. You're tired/stressed, but nowhere near a mess.But I can't help but have a little worry in the back of my head something is legitimately wrong.
So you're correct I'm not trying for scholarships or a PhD. But grading here isn't pass/fail. I am required to maintain a 2.7 (B-, here for most classes 75%, some 80%). Which is one of the reasons it's stressing me out I'm worried about not maintaining that. My other classes are fine for the most part, but the gpa weighting falls off a cliff down to 2.0 after 2.7 and that'll really drag it down. And I really don't want to play that game I just want to not worry about all this on top of everything else I am worrying about.
OK, course corrected: grades matter at least until you graduate. I still think you're in the clear if 7/9 (77%) was a noteworthy enough dip for you to mention explicitly. You know your priorities, have standard to maintain, and from the lack of objection to other points I'll presume you're stressing over them because when one thing goes wrong, suddenly nothing seems to be right and all minor problems get overstated. In two weeks, you'll have new plants and probably listen to a workmate on conference try to six-sigma powerpoint themselve out of their minor fuckup. Don't lose perspective.