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This Blog section is for news about Rainbow & Brown products and their application but especially new products.

This is the place to come to ask a question or find an answer about what is that weed and how best to deal with it for your specific circumstances.

28 Nov LAWN INVADER (PASPALUM)
Shayne 0 11562
Control of Invasive Lawn Weed Q.  Hello Paul & the folks at R & B.  Are you able to inform me as to the name of this invasive grass weed that is attempting to take over our lawn?It struggles to survive the winter when young, but goes for it in this hot weather.  Any suggestions for control?Enjoy your newsletter. A.  The weed in your lawn is a paspa..
28 Nov WEED IDENTIFICATION & CONTROL : OXALIS
Shayne 0 13825
Q.  Hi, I spoke to Rachael a couple of days ago In regards to a coastal weedI'm having problems getting rid of. I've tried lawn master and banvine,?,both at optimal spraying times. I hope these photos are enough for you towork with, I look forward to your reply.  A.  The plant in your pictures is definitely an oxalis species, most probably Oxalis c..
12 Nov PASTURE GROWTH SLOW AFTER SPRAYING DECISION?
Shayne 0 7964
Enquiry from a customer regarding possible causes of slow pasture growth. This follows our phone conversation of today. Situation:11 hectares affected by poor pasture growth.  2,4-D had been applied some weeks earlier.  75kg/ha urea applied the day before Decision was applied at 50g/Ha.  That was about 4 weeks ago.  The buttercups targeted by the D..
12 Nov CONTROLLING CUT-LEAVED GERANIUM AND DOVES FOOT IN PASTURE.
Shayne 0 11297
You¹ve asked about controlling cranesbill and plantains in pasture. By cranesbill I think you¹re referring to Erodium cicutarium which is actually called storksbill but it's probably called cranesbill in some local regions.  Looks as much like a crane as it does a stork, as far as I can see.  Just check the attached weed file to be sure I am on th..
12 Nov GRASSMATE APPLICATION RATES
Shayne 0 23311
In answer to a question about Grassmate from a customer about control of broadleaf weeds in lawns, Our product GrassMate is an excellent product for removing all broadleaf species, including clovers etc, from a lawn without damage to the grass. For your situation a rate equivalent to 2L/Ha is about right.  So for a 1.5 acre lawn, that's a total o..
25 Oct WHAT HERBICIDES TO USE IN CHICORY BASED PASTURE
Shayne 0 17300
CONTROLLING WEEDS IN CHICORY BASED PASTUREReply to a question on weed control in a horse pasture containg some chicory.The presence of chicory limits the herbicide choices very severely, because almost all the good broadleaf weed sprays will damage chicory.However, all authorities do agree that flumetsulam (i.e. our product “Decision") is the No 1 ..
23 Oct DECISION WITHHOLDING PERIOD
Shayne 0 8638
In answer to a question regarding the withholding period for Decision herbicide. Short answer is that it’s very low risk.  In fact it’s really only got a withholding period due to the fact that Decision will kill some poisonous weeds that then become more palatable (i.e. less repellent to taste) as they die off, but that remain poisonous even thoug..
23 Oct SUITABILITY OF GRASSMATE TO CONTROL CONVOLVULUS AMONG NATIVE SPECIES.
Shayne 0 8118
IN REPLY TO A QUESTION ABOUT THE SUITABILITY OF GRASSMATE FOR THE CONTROL OF THE CONVOLVULUS AMONGST NATIVES THAT YOU WANT TO PROTECTGrassmate is a good choice for the job, because it is effective against all the bindweeds, including field convolvulus.  And it’s not volatile, meaning that it doesn’t form a lighter than air vapour that drifts unexpe..
12 Oct WILL TRICLO CONTROL PASPALUM AND COUCH?
Shayne 0 10407
Triclo isn't registered for either paspalum or couch, but as you say it does kill kikuyu and there are some similarities between those species.You're going to have to try a small area and give it a couple of weeks to evaluate, before you try a larger area.  I have seen a couple of anecdotal references to triclopyr (i.e. Triclo) being effective agai..
06 Oct ARUM LILY CONTROL
Shayne 0 14362
In response to a cusomer question about lily control. I think you must be referring to Arum Lily?    But my advice is much the same for all lilies anyway. According to all the best authorities on lily control, you should not need the paraquat part of your proposed mix.  As an example go to the ARC (Auckland Regional Council) info page about the Aru..
06 Oct CONTROLLING GORSE IN FLAX
Shayne 0 29479
In reply to a customer question about controlling gorse in amongst Flax. I don't have a clear answer, at least not from practical experience. I once tried several weed sprays on some unwanted flax (a small stand of flax that was going to have to be removed) to see what was safe and what wasn't.  It was not a very illuminating experiment!   Glyphosa..
06 Oct SPRAYS FOR NEW PASTURE
Shayne 0 7774
In reply to a customer question Sept 20131.  Decision is a good spray for pasture-friendly weed control in new pasture.  It handles fathen, and quite a few other relevant species.  See attached copy of the directions leaflet for weeds controlled, rates, etc.  Note that it's only fully safe on clover after the clover has passed the two-leaf (i.e. tw..
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26 Oct Farm Chemical Compliance NZ: What WorkSafe Is Finding in Farm Sheds
Casey 0 464
Every NZ farm that uses hazardous substances needs an up-to-date chemical inventory and a current safety data sheet (SDS) for each product, kept where workers and emergency services can get to them. When WorkSafe checked 680 sheep, beef and dairy farms in late 2025, missing SDSs and inventories were behind 94% of the improvement notices issued. B..
08 Oct How to Choose the Right Wetter for Herbicide Spraying NZ
Casey 0 2128
A wetter helps spray droplets spread across a leaf and stay there, instead of beading up and rolling off before the herbicide gets in. Use a non-ionic wetter for everyday spraying, and step up to an organosilicone wetter for waxy, hairy, dusty or stressed weeds. Always check the herbicide label first, because it tells you whether a wetter is need..
30 Sep How to Trap Wasp Queens in Spring NZ
Casey 0 3404
Spring is the only time of year a wasp queen is on her own. She's out of hibernation, building a small nest by herself and feeding her first larvae with no workers to back her up. Catch her now and that nest never forms, which means no colony of thousands and no new queens next autumn. ✓Queens are active from early spring, roughly September to..