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Yellowing leaves on raspberries, worried it may be virus

TobykeaneTobykeane Posts: 47
in Fruit & veg
below are pictures of yellowing leaf problem currently happening on our raspberries. Thought it was just lack of water but seems to be getting worse. Worried it may be some
sort of virus? Any info greatly welcomed!

Posts

  • fidgetbonesfidgetbones Posts: 17,618
    Have you fed them at all this year? They look deficient in something (Nitrogen?)  as well as water. Feed without plenty of water can also be detrimental.  A quick fix might be some pelleted chicken manure,or ammonium sulphate  well watered in.
  • Pete.8Pete.8 Posts: 11,340
    I agree it's either too much or too little of something.
    Have you fed them with anything?

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • TobykeaneTobykeane Posts: 47
    Not since they were put in about 7 years ago possibly more! Every year a they have been amazing never fail and go on almost to December. I have now fed them with some iron sulphate, blood and bone, and another bit or fertiliser we had lying around. Only did that a couple of weeks ago but still not looking great. You think it’s unlikely to be a virus then? 
  • Pete.8Pete.8 Posts: 11,340
    I've only been growing them for a few years and not had any significant problems - so far.
    A few leaves go a bit yellow but otherwise healthy and I picked my 1st one today.

    It may be a virus - I don't know
    But you've given them quite a mix of feeds which in itself can cause problems.
    I wouldn't try giving them anything else for a while.

    Hopefully someone with more experience can advise re. a virus

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • fidgetbonesfidgetbones Posts: 17,618
    Have you watered well since you fed them? They can't take up feed if they are dry. I have leaky hosepipes round mine since they are in the shade of an oak tree that sucks out water .  I give them a real soaking once a week.
  • TobykeaneTobykeane Posts: 47
    Ok thanks all. Will leave them be and give them a good water. Had a fair amount of rain recently as well so should help. Some of the berries have rippened a bit and they look a bit funny. Any indication? 

  • DovefromaboveDovefromabove Posts: 88,147
    edited June 2020
    They need gallons and gallons of water every other night for a week after the dry spring we’ve had. 

    Rain doesn’t get through the foliage of plants like that unless it’s at least a couple of hours of a torrential deluge. 

    So water as I said, for a week and then several gallons at least 2-3 times a week until mid September. 

    The roots can’t take up feed unless it’s dissolved in water so always water copiously after feeding. 

    😊 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • PlashingPlashing Posts: 328
    If they are deficient in minerals they trend to turn yellow I spray mine with Epsom salts twice to three times at two week intervals, If you look on the net it will give you an idea what it is. 

     
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