(fill sprayer with water first to test and learn it's operating characteristics)
If you follow directions, mix with rubber gloves on, wear eye protection when mixing, and wear pants and shoes when spraying you will never have an issue. If you find that you are sensitive to any of the chemicals, try a cheap facemask. ALWAYS wash clothes that you wear separately from the rest of laundry and use hot water when washing them.
Everyone should always take to time to read the precautions and warning labels before mixing and using pesticides. Most issues happen during mixing.
BUT the chemicals of today or very safe for humans and non-target pests if used per the label. Old chemicals like Malathion, 24D and others were derived from warfare and were used as defoliants and mosquito control in the jungles. Malathion was actually derived from a nerve gas that was developed in WWII. The 24d of today is different from it's original form but still effective and potentially harmful.
