[The Courier-Mail 16 Nov, 2012 by Kate McKenna] -- THE heartbroken family of a farmer who died after being sprayed by a highly toxic weedkiller has described the man as a "gentle giant" who adored spending time with his five grandchildren. Howard Reck, 55, of Lynford in the Darling Downs, was spraying weeds on his property on Monday when the 8L pressure pump unit filled with paraquat released, spraying the poisonous chemical into his mouth and coating his face and chest. The veteran farmer drove himself 400m to a neighbouring property in a frantic dash for help. A family friend then dragged Mr Reck out of the ute and began hosing him down in a bid to wash out the poison before the ambulance arrived, his family said. Mr Reck died in Brisbane's Princess Alexandra Hospital on Tuesday. Paraquat is one of the most widely used pesticides in the world. It is used to control weeds, but as little as one teaspoonful of the active ingredient is fatal. Dr Roberto Busi from the Australian Herbicide Resistance Initiative said paraquat was widely used in agricultural farming because it was a "pre-plant knockdown" that killed all weeds, either before planting the crop or after the harvest. But the tragedy has reignited concern over Australia's regulation of highly toxic herbicides. Paraquat has courted controversy because health experts say there is no antidote, with reported links to the development of Parkinson's disease. It has been banned in 32 countries, including Finland, Sweden and China. [Photo: FAMILY DEVASTATED: Howard Reck died after exposure to the pesticide paraquat. Source: Supplied]