Use the lower rates on turf with moderate growth rates where a lower level of growth reduction is required or when used in a program. For Common Couch, Hybrid Couch and Kikuyu turfgrasses only Compatibility. PRIMO MAXX, at normal dilution rates, will not stain brass, bronze, concrete, granite, marble or other types of stone. In practice the amount of growth regulation achieved will vary between situations due to environmental conditions and management practices. The recommended use rates are designed to give approximately a 20 to 50% reduction in clippings over a 2 to 6 week period. Apply Primo Maxx Turf Growth Regulator at least 6 hours before or after mowing and when turf is actively growing. Primo is a turf care great tool to help reduce growth and could be a real help in the upcoming months helping you reduce labour required. Primo MAXX ® plant growth regulator promotes denser, healthier turf that is better able to withstand a variety of stresses including heat, drought, diseases and traffic. Thank in advance for your knowledge! It slows the production of gibberellic acid, a plant hormone that promotes cell elongation. Does anyone know the oz/gallon mix rate for backpack sprayers when using Primo-maxx? Vertical shoot growth is slowed, while lateral and below-ground growth of rhizomes, stolons, tillers and roots is stimulated Primo MAXX Plant Growth Regulator is for the purpose of pre-stress conditioning, to prepare turfgrass for extreme conditions before they hit. During a heat wave with high temperatures of 100°F and lows around 75°F (average day temp. Lots of phone calls and messages about Primo rates at the moment. 89°F) 200 GDD occurs in 7 days or less. The 200 GDD re-application interval is the furthest * NY Primo Maxx re-application interval to maintain yield suppression because the yield begins to transition into the rebound phase after 200 GDD. I found the oz/acre, but I'm applying by hand to small areas, not acreages. I'm looking for ratios for St augustine and also the rate for common bermuda. Primo Maxx for Turf Growth Management PGR - 1 - 10 Gal is a turf management tool that maximizes performance, pre-conditions for stress prevention, and optimizes the mowing effort. That level of suppression would be unheard of during the summer season using similar application rates and intervals. To make matters worse, the turf was barely growing because of the cool weather that fall. Low rates of PRIMO MAXX (that provide growth suppression of Poa annua, but not Bent Grass) applied during peak growth periods may enable a slow transition in the golf green sward composition away from Poa annua and towards a higher percentage of Bent Grass. 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