Simon Chiles
DD Moderator
- Location
- Surrey/ Kent Border, UK
I hate a thick stand of beans, they look magnificent, grow to about 9ft tall and then only get 1 pod per plant. I’d rather they were thinner and shorter.
Winter beans
- Thread starter Bigjon44
- Start date
I hate a thick stand of beans, they look magnificent, grow to about 9ft tall and then only get 1 pod per plant. I’d rather they were thinner and shorter.
- Location
- Oxfordshire
2x teb & azoxy last year, probs similar again
- Location
- S.E
Elatus Era T1 (this week) fb azoxy ay T2
- Location
- Lincs
Custodia (teb and azoxy) next week. Bit of downy mildew about
ZXR17
Member
- Location
- South Dorset
With what ?
Yes.
Quite a bit in winter beans this spring
Elatus won't touch Downy Mildew.
The only fungicide with approval (EAMU) for controlling Downy Mildew in beans is SL567A/Clayton Tine (other brands might be available). Full rate is 0.16 l/ha but many will apply at lower rates e.g. 0.125 - 0.15 l/ha to balance cost and efficacy. Threshold for treatment is when 25% of plants are showing symptoms.
If Downy Mildew has got going and is spreading you are probably too late for the Phosphite option. Weather turning hotter and dry middle of the month and this will also suppress the Downy Mildew (although not fully eradicate it).
Never had to treat Winter Beans for Downy Mildew before but some crops (thick, large biomass ones) definitely exceeding threshold this year and requiring specific treatment…. Other crops have low levels of disease and I am hoping hot/dry weather will be sufficient and not planning to treat.
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I would try phosphite first. Next time
I have put phosphite on another field that isn’t showing much. My agronomist said phosphite helps prevent it but isn’t as good if rust is already present.
- Location
- Dorset/Wilts
Not planning on treating with anything or for mildew?
- Location
- Dorset/Wilts
Amistar and teb due to go on this week.
Phos-star (phosphite, mag, mang etc) about £14/ht if I fancied it
Phos-star (phosphite, mag, mang etc) about £14/ht if I fancied it
- Location
- NE Derbyshire
I remember SL567A being £900 for a 5 litre can some 20 years ago
Will do a mix for Chocolate Spot/Rust but ignore Downy Mildew if disease is absent or below 25% infection levels (might put a phosphite product in if its feels like the right thing to do at the time).
If no Chocolate Spot (or rust) present at the moment then happy to delay treatment for time being…. Later the first fungicide is applied means chances of second fungicide being required reduces.