When pesticides are applied wrongly their negative effects can be accentuated and their positive effects lessened. If farmers do not use proper equipment and clothing there is unnecessary exposure. Care needs to be taken with the adjustments of pesticides also. Farmers can lessen exposures by timing the application according to environmental conditions. Many governments are using educational certification programs to reduce the untoward effects of agricultural chemicals. Through who work closely with these chemicals have a tendency for medical effects such as higher incidence of Parkinson Disease nervous system disorders and other health issues. The following of biologically based organic production systems can eliminate much of the exposure and health data on organic farmers have shown a higher sperm count compared to conventional farmers who have much greater agricultural chemical exposure.

You could study results of the EU project ACROPOLIS.

The effects vary by dose, type of pesticide, and duration of exposure. There can be no effect for a one time skin exposure to an insecticidal soap diluted to application rate. On the other hand, cyanide has been used as both an insecticide and in the Nazi death camps.

The other issue is twofold. A company needs to provide directions for safe effective use of their product. This is often heavily regulated by various government agencies. That said, people must read, understand, and follow the directions.

The question is also unanswerable. Farmer Jones sprays his orchard with DDT, and a single droplet drifts 100 miles to be inhaled by Bob in Atlanta. Bob is currently age 12, and develops cancer 37 years later. How do you prove a causal link?

Dear Paul Reed, you've got a very good point there, the Government must regulate that aspects of things. then what should we do, as agriculturist when for instance there is no law and no regulations outlining the usage of pesticides. the most seen or encountered effect is the public health being affected. the major constraints here are 1) the absence of Agricultural Law. 2) the absence of market standards

Dear Jiri Ruprich,

Yes, the EU Projects ACROPOLIS have numerous good results and even recommendations but these are suitable in well organised markets with standards and environmental health issues well set. how to deal with the issue where farmer common sense is not on his/her health instead on the immediate meager gain that can be made from sale. the problem remain whole 

Timothy A Ebert, you are sure right, the causal link of some disease caused by misapplication of pesticides some time before and miles away is a real issue. But my point is simple. how do we deal with problem of misapplication of pesticides when there no government effective regulations for the matter?