The tаble belоw cоntаins infоrmаtion for various insecticides LD50s of various pesticides Chemical Synthetic/natural Oral LD50 in rats (mg/kg) Dieldrin Synthetic 40 Malathion Synthetic 885 Rotenone Natural (plant extract) 60 Pyrethrins Natural (plant extract) 200 With regard to oral toxicity in rats, from this table we can conclude: