{"title":"Growth Regulators","description":"Turf growth regulators for a denser lawn with less mowing.","products":[{"product_id":"plant-growth-regulator-astro-120-me-1l","title":"Growth Regulator Astro 120 ME 1L (Lawn PGR)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAstro 120 ME Growth Regulator is an efficient and versatile turf management tool that maximizes turf quality, pre-conditions for stress prevention, and optimises resources. For the regulation of leaf and stem growth of grass species and as an aid in turf management, as per the Directions for Use .\u003c\/p\u003e\n\u003cp\u003eAstro 120 ME Growth Regulator improves turf stand, uniformity and health to provide a smooth, tightly knit cover that is better able to withstand stress. Astro 120 ME Growth Regulator achieves this by increasing the lateral spread and turf density, in addition to slowing the vertical growth of the grass. This enhances the playability of many surfaces including fairways, greens and tees on golf courses as well as sport fields and other playing surfaces.\u003c\/p\u003e\n\u003cp\u003eAstro 120 ME Growth Regulator is micro emulsion formulation, ideal for use in sensitive turf plants.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures and Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eno odour \/ no petroleum solvent\u003c\/li\u003e\n\u003cli\u003eeasily tank mixed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e For optimum turf quality, use Astro 120 ME Growth Regulator in conjunction with turf management practices that promote good plant health. Use the lower rate for the first application, to condition the turf at the start of the Astro 120 ME Growth Regulator program.\u003c\/p\u003e\n\u003cp\u003eThe recommended use rates are designed to give approximately a 50% reduction in clippings over a 4 to 6 weeks period. In practice the amount of growth regulation achieved will vary between situations due to environmental conditions and management practices. To some extent therefore application rates will need to be adjusted to match growing conditions, management practices and the amount of growth\u003cspan\u003e r\u003c\/span\u003eegulation required. Repeat applications can be made as soon as turf resumes growth or more suppression is required. Astro 120 ME Growth Regulator should be applied to actively growing turf, at least 6 hours before or after mowing. Good mowing management leading up to application is required to achieve a good quality turf surface and to obtain the best results.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTank Mixing Benefit\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe longevity of fungicides (and certain insecticides) are generally extended when used in conjunction with a growth regulation program of Astro 120 ME Growth Regulator.\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Turf Culture Astro SDS\" href=\"https:\/\/turfculture.com.au\/Products\/astro120\/DownloadSDS\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong style=\"color: #ff8000;\"\u003eTurf Culture Astro SDS\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" title=\"Turf Culture Astro Label\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/Astro_Label.pdf?v=1639023535\" target=\"_blank\"\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003eTurf Culture Astro Label\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Aq-msqdYiE0?si=rYasZDdlY5J9cB-x\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Turf Culture","offers":[{"title":"Default Title","offer_id":18966888382575,"sku":"ASTRO1L","price":120.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/products\/AstroGrowthRegulator_492c219e-2eab-4add-8367-24932f76a743.png?v=1636938108"},{"product_id":"trimmit-growth-regulator-100ml","title":"Trimmit Growth Regulator 100ml","description":"\u003cp\u003eTrimmit is a powerful growth regulator formulated with 250 g\/L Paclobutrazol, designed to significantly reduce the growth of hedging and ground cover species. Trimmit slows shoot growth, minimising the need for frequent trimming while enhancing the overall health and appearance of the plant.\u003c\/p\u003e\n\u003cp\u003eIdeal for species such as Golden Duranta, Small Leaf Photinia, Syzygium, Box, Viburnum, and Mock Orange, as well as ground covers like Star Jasmine, Trimmit promotes denser foliage, a deeper green colour, and increased drought tolerance. Regular applications lead to healthier plants with more uniform and attractive growth, reducing trimming frequency to once or twice a year.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduces trimming needs by up to 70% for labour savings and reduced waste.\u003c\/li\u003e\n\u003cli\u003ePromotes denser foliage and a richer green colour.\u003c\/li\u003e\n\u003cli\u003eIncreases drought tolerance and overall plant health.\u003c\/li\u003e\n\u003cli\u003eMinimises green waste and the risks associated with trimming work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse on plants nearing their optimal size to maintain shape and density.\u003c\/li\u003e\n\u003cli\u003eApply as a root drench, using 0.5 to 2.5 mL per plant, mixed in 1 L of water.\u003c\/li\u003e\n\u003cli\u003eEnsure thorough irrigation after application to aid root uptake.\u003c\/li\u003e\n\u003cli\u003eSuitable for use in both in-ground and large potted hedges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/trimmit_growth_regulator_label_82071-104922.pdf?v=1729721648\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003eTrimmit Label\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/trimmit_sds-ghs_1016.pdf?v=1729721649\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eTrimmit SDS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":50169415401640,"sku":"TRIMMIT","price":50.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/Trimmit100mlPackShot.png?v=1729721318"},{"product_id":"primo-hg-turf-growth-regulator-500ml","title":"Primo HG Turf Growth Regulator 500ml","description":"\u003cp\u003e\u003cspan lang=\"EN-US\"\u003eThe only turf growth regulator registered for home use in Australia. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-US\"\u003ePRIMO® HG Turf Growth Regulator will promote greener, denser, more resilient lawns, reduced height of leaf growth, fewer clippings and therefore less time spent on maintenance. PRIMO® HG is the trusted growth regulator that pre-conditions turf for stress and optimises surface quality and colour. Achieve professional turf quality at home.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-AU\"\u003ePRIMO® HG is a lawn growth regulator which can reduce leaf and stem elongation and speed of growth, leading to reducing mowing frequency, creating a greener lawn and developing more resilient and denser lawns. Recommended applications rates are designed to give approximately a 20 to 50% reduction in clipping yield over a 2 to 6 week period. Growth regulation begins 3 to 5 days after application. The amount of growth regulation achieved will vary between situations due to environmental conditions and lawn management practices. Therefore, application rates will need to be adjusted to match growing conditions, management practices and the amount of growth regulation required in each individual situation. \u003c\/span\u003e\u003cspan lang=\"EN-AU\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-AU\"\u003e\u003cstrong\u003eHOW TO PREPARE\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e1. Prior to opening, shake the PRIMO HG bottle well.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e2. Add half the required amount of water to your sprayer.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e3. Add the required quantity of PRIMO HG to the half full sprayer.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e4. Add the remaining water required and ensure it is closed before shaking sprayer.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e5. Only mix sufficient chemical to be used on the day of mixing for the application area.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-AU\"\u003e\u003cstrong\u003eHOW TO APPLY\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e• For best results do not mow 6 hours before or after application.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e• Measure the lawn area before application to determine the size. Make up only enough mixture to\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003eapply over the area.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e• Evenly spray the mixed solution over the area to be treated.\u003c\/span\u003e\u003cbr\u003e\u003cspan lang=\"EN-AU\"\u003e• Thoroughly clean all equipment after application. Empty and thoroughly rinse sprayer with clean water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 128, 0);\" href=\"https:\/\/www.syngentaturf.com.au\/sites\/g\/files\/kgtney631\/files\/media\/document\/2025\/09\/22\/primo_hg_label_-_94862-143884.pdf\" target=\"_blank\"\u003e\u003cspan lang=\"EN-AU\"\u003ePrimo Label\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 128, 0);\" href=\"https:\/\/www.syngentaturf.com.au\/sites\/g\/files\/kgtney631\/files\/media\/document\/2025\/09\/22\/primo_hg_sds_0925.pdf\" target=\"_blank\"\u003e\u003cspan lang=\"EN-AU\"\u003ePrimo SDS\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-AU\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Aq-msqdYiE0?si=rYasZDdlY5J9cB-x\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":54116478615720,"sku":"PRIMOHG","price":75.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/PrimoHGPackshot.png?v=1760328299"},{"product_id":"primo-maxx-ii-turf-growth-regulator-5ltr","title":"Primo Maxx II Turf Growth Regulator 5ltr","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePRIMO MAXX® II Turf Growth Regulator \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePRIMO MAXX® II is a completely new formulation designed to meet the ever increasing regulatory hurdles and secure the long term future of this key management tool for turf managers. It delivers the same high performance as the original PRIMO MAXX formulation, with users continuing to apply the rates they have always used and achieving the same great results while applying less active ingredient.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBiochemically, PRIMO MAXX® II works by temporarily blocking the production of gibberellic acid within the plant leaf, effectively limiting cell elongation and vertical growth. This shortens the distance between shoot nodes, leading to more compact growth, while energy in the plant is diverted to boost both root and lateral growth — creating stronger, healthier and denser turf that plays more consistently and requires up to 35% less mowing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eUsed from tee to green, PRIMO MAXX® II improves turf health and playing surface consistency across the course. On greens, it produces smoother, truer putting surfaces with more consistent roll throughout the day, superior rooting and drought stress tolerance, and greater over-winter disease and shade tolerance. On fairways and tees, it improves sward density and ball presentation, increases resistance to divoting, and improves wear and stress tolerance, while reducing mowing frequency, fuel use and machinery wear across fairways and roughs.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eResearch has shown PRIMO MAXX® II applications increase the level of bioactive cytokinins within the plant, improving tolerance to heat and drought-induced stress and delaying chlorophyll degradation to reduce leaf browning. In trials under drought conditions, PRIMO MAXX® II enhanced the photochemical efficiency of turf by over 75% compared to untreated turf, with relative water content remaining 20% higher than untreated turf 28 days after treatment. It is also an important part of Integrated Turf Management programmes, creating turf conditions less conducive to disease.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePRIMO MAXX® II is a soluble concentrate (SL formulation) containing 116 g\/L trinexapac-ethyl, and mixes completely with water. It is compatible with a wide range of commonly used fungicides, insecticides, herbicides, fertilisers and pigments, and is recommended for tank mixing with a good quality liquid fertiliser with each application to maintain adequate plant nutrition for the best turf quality results.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/primo_maxx_ii_label_-_90791-130045.pdf?v=1783924115\" target=\"_blank\" style=\"color: rgb(255, 128, 0);\" rel=\"noopener\"\u003ePRIMO MAXX® II Label\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/Primo_Maxx_II_SDS_AU.pdf?v=1783924115\" target=\"_blank\" style=\"color: rgb(255, 128, 0);\" rel=\"noopener\"\u003ePRIMO MAXX® II SDS\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":55741241131176,"sku":"PMAXX5L","price":294.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/9603\/3903\/files\/PrimoMaxx25L.png?v=1783924214"}],"url":"https:\/\/lawnhub.com.au\/collections\/growth-regulators.oembed","provider":"Lawnhub","version":"1.0","type":"link"}