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Californian thistle is hard to kill because the plant you see is only the top of a deep, spreading root system that keeps throwing up fresh shoots from root buds. Knocking back the top growth won't get on top of it. The reliable approach is a herbicide that moves through the whole plant down to the root buds, applied while the thistle is actively..

Grass growth stalls once soil temperatures drop below about 10 degrees, which is the winter feed gap every farmer knows. Gibberellic acid, a natural plant hormone sold as Gibb-Gro and Gibber900, can get pasture moving again once soils sit in the 6 to 13 degree range, with a lift in dry matter over about three weeks. It works as a top-up on green,..

Healthy horse paddocks in NZ need a three-pronged seasonal approach: weed control for persistent species like docks and buttercups, residual fly and tick management through summer, and trace mineral support to fill gaps that good pasture alone can miss. ✓Docks and buttercups reduce pasture quality and can irritate horses; treat in early spring..

Foliar fertilisation means spraying dissolved nutrients directly onto plant leaves, where they're absorbed through the leaf surface and bypass the soil entirely. It's most useful for correcting mid-season deficiencies quickly, delivering micronutrients that soil chemistry is locking up, and supporting plants at critical growth stages when you can..

Note: This article was last updated March 2026 What Can We Use Instead of Banvine(1)? Quick answer: Banvine(1) contained 200g/L 2,4-D and 100g/L dicamba. The closest ready-mixed alternative from Rainbow & Brown is LawnMate. A lower-cost option is to use individual herbicides such as WHACK – 2,4-D 800 and Rainbow & Brown Dicamba 500 SL, but any ..

Fulvic Acid Explained: How Fulvex 9500 Unlocks Nutrients Plants Can Actually Use Category: Soil Health Quick answer: Fulvic acid helps plants access nutrients that may already exist in the soil but are chemically locked up and unavailable. Fulvex 9500 is a highly concentrated 95% pure fulvic acid that works as a natural chelator, binding minera..

Herbicide Resistance: A Growing Challenge Herbicide resistance is becoming an increasing challenge across New Zealand, affecting pasture, cropping, vineyards, forestry, and lifestyle blocks alike. It occurs when a weed population adapts to survive a herbicide that once provided reliable control - often after the same mode of action has been used ..

Herbicide Environmental Impact Assessment Guide When selecting herbicides for agricultural or landscaping applications, understanding their environmental characteristics can help make informed decisions that balance effectiveness with ecological responsibility. This guide evaluates common herbicide products across three key environmental factors ..

Spraying around Waterways: What you need to know One of the most common questions we receive is: “What sprays can I use around my creek, pond, or water race?” Unfortunately there’s no single simple answer — but knowing the basics will help you make safe, effective choices.   The challenge with Waterways Most products approved for use direc..

Herbicide Guide for Preparing Native Planting Sites This guide outlines herbicide options for pre-planting site preparation to support the successful establishment of native vegetation. It focuses on the safe and effective control of invasive weeds and grasses. .herbicide-table { border-collapse: collapse; width: 100%; min-width: 900px..

Working out Your Spray Rates with our easy-to-use Spray Conversion Calculator Calculating spray rates can be a real head-scratcher. So, we’ve made a simple tool to help take the hassle out of it. Our new Spray Rate Conversion Calculator is free and easy to access on our website. This calculator helps you quickly figure out: How much herbicide..