Effective Weed Control Chemicals and Soil Boosters, distributed across New Zealand
Rainbow & Brown supplies a range of selective herbicides and weed control products as well as bulk blood and bone fertiliser and liquid lawn fertiliser. We select only the highest quality products with proven results. Products can be shipped throughout New Zealand
LOW COST Gorse and Scrub Control Herbicide. The lowest cost gorse killer in our range, MSF600 metsulfuron-methyl herbicide is popular and proven in NZ..
A natural high quality ascophyllum nodosum seaweed concentrate to promote water absorption and retention activity in the soil, which helps break down ..
Quick answer: 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 stage..
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..