DISEASE & WEED CONTROL Albert Adjesiwor, a University of Idaho Extension weed specialist, with the thermogradient table the university recently received to study the effects of varying temperatures on weed emergence. Photo by John O'Connell. VGN_1/3 sq.qxp_Layout 1 1/5/24 10:31 AM Page 1 " This is because we find Hortiblock® Trays with Seal Surface Technology soil-less hydroponic systems ... HH-qT S. ourselves recommending more soil-applied herbicides to manage herbicide-resistant weeds, " he said. " When those soil-applied herbicides don't work well, it's often difficult to tell whether the weeds have started to emerge before the herbicide got activated. " The table's ability to heat soil and other growing media will allow Maki and other researchers to test if, and when, soil temperatures would render certain herbicides ineffective. The germination temperature ORDER ONLINE! Hortiblock® 16 | FEBRUARY 2024 Trays Vegetable Production for Greenhouse and Field Transplants. requirements studies are a small part of this initiative. Researchers are also evaluating germination moisture requirements to determine the least amount of moisture needed to activate soil-applied herbicides, among others. As growers rely more on soilapplied (pre-emergence) pesticides to control grassy weeds like Italian ryegrass, knowledge is key to their effectiveness. Adjesiwor said weeds that germinate and thrive before the pre-emergence pesticides are applied won't be killed, and the project's results will help growers maximize weed control.http://bpgrower.com