Posted 3/12/2019 22:42 (#7376838 - in reply to #7376804) Subject: RE: New To Me Planter Making Me Sick...Physically Sick
n.c.iowa
It’s called a cholinestearase test.
A LD 50 is the amount of pesticide in this case, but can be measurement for anything that the dosage will kill 50% of a test population.