Kerb/Astrokerb
- Thread starter Laggard
- Start date
- Location
- the brecks norfolk
Don't know about kerb but I'm pretty sure that when ive used it clomazone has knocked the crop and cost yield.
Any patches around poles or headlands not sprayed had taller,stronger better coloured and most importantly CSFB free plants.
Are you claiming some sort of herbicide/CSFB interaction?
- Location
- the brecks norfolk
Not herbicide as such but anything that makes a plant weaker. I had some trouble spreading a autumn fert blend on rape a few years ago and where the fert had under dosed the rape was destroyed by beetle where the fert had over dosed and produced big strong plants, they were untouched by beetle.
I've seen similar with pre em clomazone spray misses had no beetle because I assume they were bigger stringer plants.
I've seen similar with pre em clomazone spray misses had no beetle because I assume they were bigger stringer plants.
- Location
- Lorette Manitoba
Seen similar in barley that was planted after pre seed burn down with round up. Part field sprayed to empty out the sprayer and it emerged four days later and never caught up. Not sure on yield difference thou. Monsanto claim it’s degraded on contact with soil. Any chemical is a poison so it’s to be expected
- Location
- DD9.
interesting thought……
We spot sprayed some kerb last wk, plus the ends. Fields look fine. Noticed a neighbour doing their OSR around same time, whole fields. These fields don’t look very good now, lot of yellow leaves.
maybe just a varietal trait, or time of the season but we’ve not really had any frosts yet bar a couple of very light ones the mornings following the spraying. I was wondering if the yellowing was something to do with the spray
alomy75
Member
I agree. The only thing that works to control csfb (chems, fancy companion cropping, etc) is when the plant grows faster than the csfb can eat it. Anything that holds the plant back will help the beetle.
MikeNeaverson
Member
Propyzamide treated OSR is often stunted in the overlaps despite also receiving double N. However I have never seen any significant difference in spray misses that haven't received Kerb at all vs most of the field that has received the label rate.
- Location
- S E Glos
All chemical sprays will reduce yield if their other benefits aren't realised, i.e. if it turns out they weren't needed. Even benign products like chlormequat, e.g.
In this case you have to compare yield from Kerb treatment against an untreated crop full of grass weeds etc.
In this case you have to compare yield from Kerb treatment against an untreated crop full of grass weeds etc.
yes
was told by local Procam agronomist that it’s service customers only.
Fortunately I secured my requirements supply only from elaewhere.