CenterHillAg said:
You sure he was spraying? Fertilizing would be more likely right now. Don't blame the pilot, he's just applying where he was told, brother's gotta eat. I'm guessing that's Campbell land in that area, take it up with the forester.
Good point.
Trees aren't growing much, nor are weeds, insects are dormant. Doesn't seem like a good time to control pests. but wouldn't be a bad time to be putting some nutrients down for next year.
Green tint may be a dye, just to help the pilot see where he sprayed.
Again, back to the OP, were it herbicide, the best exposure is zero exposure. But when you apply chemical at the rate of 1-2 quarts per acre (plus about 5-10 gallons per acre water), your exposure is pretty small.
Say you inhaled 100% of the chemical that was sprayed within a 10 foot radius of you.
That's 78.5 sq. ft. or 0.0018 acres
Assume chemical sprayed at 2 quarts per acre
Exposure = 0.115 ounces = 3.4mililiter