Scientists are finding there is a critical time during the year when weeds can impact tree fruit yields. But after the critical period, a weedy orchard floor may be more of an eyesore than an economic problem. Dr. Leslie Huffman, weed management specialist for the Ontario Ministry of Agriculture in Harrow, Ontario, Canada, said data from a trial she conducted with other researchers in weed management indicates that the critical weed-free period for young fruit trees is May to July. For bearing fruit trees, the critical weed-free period is from bud break to 30 days after bloom. “It’s a hard […]