worker in protective workwear spraying herbicide on ragweed. non-organic vegetables. pest control worker spraying insecticides or

adult adults agriculture allergen allergy ambrosia asthma blooming blossom botany chemical control crop disease equipment farm farmer flower gardening goldenrod grass green growth hay health herbicide horizontal illness insecticide man nature one only outdoor person pest pesticide photography plant pollen ragweed rhinitis season spray sprayer spraying toxic treatment weed work working