Myths abound in the lore of gardening, clouding issues and veiling the truth.
The following are some common gardening myths. Nothing could be further from the truth. Plant-derived poisons are only sometimes less toxic to man than synthetic agrichemicals. Rotenone, from the roots of derris plants, is toxic if swallowed or inhaled. Both pyrethrum and rotenone are low in toxicity to mammals yet highly toxic to fish.