When to stop spraying due to heat
- Thread starter woody 1
- Start date
- Location
- Lincolnshire
Tricky. I'm just about to finish for the day. Cloudy. 18 degrees. Best chance before the thunder though.
- Location
- Northleach, Gloucestershire
I was always told to avoid spraying in direct sun if the temperature is 20c or above, thats direct sun mind you, i've sprayed in temperatures up to 24c with it overcast with no ill effects.
average farmer
Member
- Location
- North Notts
I think it’s risk vs reward, not done any today . Plants stressed enough without me putting them under more for the sake of 2 hundred weight/ acre with chemicals and pass costing 1 , if it was below 20 and dull I’d have been doing a bit . Enjoy the football to
- Location
- Dorset/Wilts
Finished T3's around 12:30pm. Might had been 20°c by then. Only a bit of teb, and if I leave it too long, i might as well not bother.
Planning on some spring beans tomorrow morning. Hoping for earlier start as dont have to do nursery run. Hopefully done by 10am.
In 2019 I went spraying t1s on ww through the day and it must had been 24/25°c with clear skies. 2x fung, 1x herb, 2x pgr. Absolutely no after effects
.
2019
Planning on some spring beans tomorrow morning. Hoping for earlier start as dont have to do nursery run. Hopefully done by 10am.
In 2019 I went spraying t1s on ww through the day and it must had been 24/25°c with clear skies. 2x fung, 1x herb, 2x pgr. Absolutely no after effects
.2019
- Location
- East yorks
21 is my cut off
- Location
- Kenilworth
I asked my agronomist today, he was too worried about the temp alone. (Only a bit of fungicide )
He was concerned about how bright it was plus the temps.
But then it’s a trade off to beat any rain v scorch.
He was concerned about how bright it was plus the temps.
But then it’s a trade off to beat any rain v scorch.
- Location
- Bedfordshire
Today looks like last chance for T3 before the weather breaks, so will be going all day I think
- Location
- North West
Past week I’ve just been starting at 5am as it’s cooler but mainly because through the day it’s been getting too windy. Went spraying beet at half 9 last night as thay really don’t like been sprayed when it’s hot! Past year though I’ve found you have to go early or late on to avoid all the walkers!
7800
Member
- Location
- cambridgeshire
There’s really no problem doing ear wash up to 25 degrees in sunshine.
herbicides on other crops a different matter
herbicides on other crops a different matter
- Location
- Cambs Essex
It pays some time not think too much and just crack on. rather have my ear wash complete before this bad weather than my crop exposed
- Location
- East yorks
No such rush as it’s not started flowering here yet
- Location
- Bedfordshire
This totally, On T3’s all day yesterday and finished at ten pm, damp here all day today with an unsettled forecast glad I’ve done it.
- Location
- NSW, Newstralya
Err, you know, a lot of the major arable & cereal growing regions around the world are a lot hotter & drier than the UK
just saying . . .
just saying . . .
- Location
- Lincolnshire
Clear skies and heat are so rare. We both desire and fear them in equal measure.
Chae1
Member
- Location
- Aberdeenshire
I didn't used to spray in the heat of the day in Australia either.
Got up early did a load. Went back to bed started again late afternoon and kept going through evening.
Just saying...
- Location
- Lincolnshire
Tbh our national sport is "complaining about the weather". The mummies at the school gate who were wearing three jumpers and whining about the winter are now wearing huge hats, looking flustered, and complaining about the heat. That's a five degree range. I say bring on the mid 30s. Bloody love it.
- Location
- NSW, Newstralya
So do we during summer, but our summer temps are a lot higher than 20 C
Strungup52
Member
Canada, we stop spraying most chems @26C.
But, spraying glufosinate (Liberty) on Canola we like to go above 24C to about 30C for best results. Today much cooler and stopped around noon, the temp had dropped to 18C, weird.
But, spraying glufosinate (Liberty) on Canola we like to go above 24C to about 30C for best results. Today much cooler and stopped around noon, the temp had dropped to 18C, weird.