Glyphosate concerns, watching foxes, water-butt advice
AS a contemporary of Margaret Harris, who wrote about the use of glyphosate (AG, 17 November), and also in good health though not a vegetarian, I can well remember the enthusiastic use by my parents of DDT spray on the allotment, in the garden and the house.
My father also used a dangerous mercury compound that I think was called calomel, into which he dipped the roots of little cabbage plants as they were transplanted.
However, anecdotal evidence is not proper evidence and it is certainly important to have accurate scientific research into this very important matter.
Dr Rhoda Pippen, Cardiff
DDT pesticide was banned in 1984