It is one of the great philosophical discussions – what came first, the chicken or the egg? (Spoiler alert – the egg came first). What came first, herbicides or herbicide resistance?  We have always assumed that weeds have random genetic mutations that occur naturally in a population. That herbicides merely select for these mutations by killing all of the other plants in the population, leaving behind the resistant plants. However, we had no evidence. Until now. French researcher Christophe Delye and others from INRA in Dijon, France set out to answer this question once and for all. They studied herbarium … Continue reading Chicken or the egg?