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Parry, W. P. (2001, November 6). //Fungus-farming ants first to find natural pesticides//. Retrieved from []

Sanders, R. S. (2009, September 04). //Issues of pestcides//. Retrieved from []

Ware, G. W. (2004). //An introduction to insecticides//. (6 ed.). Willoughby, Ohio: MeisterPro Retrieved from []

//Insectides and effects on human beings//. (2000, June 18). Retrieved from []

MacDonalds, G. M. (2009, January 12). //Herbicides: How toxic are they ?//. Retrieved from []