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Any idea what's attacking my rose?

davebettzdavebettz Posts: 110
in Problem solving
Hi I've noticed our rose isn't doing too well now it's winter any advice on what's going wrong? 

I've noticed whitefly underneath the leaves and black bits? 

What can I do to help them? 


Posts

  • FireFire Posts: 19,096
    This looks like mine of a moth leaf miner larva. Nothing to worry about, it shouldn't hurt the plant in major way.




    The black bits might be black spot (a fungus), which again, quite standard in roses.


    It's quite normal for roses to look scraggy by the end of the autumn. If concerned, you can pick off the leave with black spot and collect the fallen leaves under the plant so that the effect of the fungus is reduced next year.

  • davebettzdavebettz Posts: 110
    Fire said:
    This looks like mine of a moth leaf miner larva. Nothing to worry about, it shouldn't hurt the plant in major way.




    The black bits might be black spot (a fungus), which again, quite standard in roses.


    It's quite normal for roses to look scraggy by the end of the autumn. If concerned, you can pick off the leave with black spot and collect the fallen leaves under the plant so that the effect of the fungus is reduced next year.

    Thank You. I'm new to growing roses 
  • thehplants89208thehplants89208 Posts: 9
    It's not uncommon for roses to experience some challenges during the winter months. Here's how you can address these issues:

    Whiteflies:

    Whiteflies are small, flying insects that can infest the undersides of rose leaves. They feed on plant sap and can weaken your rose plant over time.
    To control whiteflies, you can try the following methods:
    a. Prune affected leaves: Trim away any heavily infested leaves and dispose of them to reduce the population.
    b. Hose them down: Use a strong stream of water to dislodge whiteflies from the leaves.
    c. Neem oil: Applying neem oil to the undersides of the leaves can deter whiteflies. Follow the manufacturer's instructions for application.
    d. Insecticidal soap or horticultural oil: These products can also be effective in controlling whiteflies. Follow the product instructions carefully.

    Black spots:

    Black spots on rose leaves are a common fungal disease called black spot. This disease can weaken the plant and reduce its overall health.
    To manage black spot, you can try these methods:
    a. Prune affected leaves: Trim away leaves with black spots and dispose of them. This will help reduce the spread of the disease.
    b. Fungicide: Apply a fungicide specifically designed to control black spot. Follow the product's instructions for application.
    c. Good air circulation: Ensure your rose plant has adequate spacing between other plants to promote air circulation, which can help prevent the development of black spot.
    In addition to addressing these issues, here are some general tips for caring for your roses during the winter:

    Watering: Reduce the frequency of watering during the winter months, as the plant's growth slows down. Make sure the soil is well-draining to avoid waterlogged roots.
    Mulching: Apply a layer of mulch around the base of the rose plant to help insulate the roots and protect them from extreme temperature fluctuations.
    Winter protection: If you experience extremely cold winters, consider using burlap or rose cones to protect your roses from freezing temperatures and harsh winds.

  • davebettzdavebettz Posts: 110
    thehplants89208 said:
    It's not uncommon for roses to experience some challenges during the winter months. Here's how you can address these issues:

    Whiteflies:

    Whiteflies are small, flying insects that can infest the undersides of rose leaves. They feed on plant sap and can weaken your rose plant over time.
    To control whiteflies, you can try the following methods:
    a. Prune affected leaves: Trim away any heavily infested leaves and dispose of them to reduce the population.
    b. Hose them down: Use a strong stream of water to dislodge whiteflies from the leaves.
    c. Neem oil: Applying neem oil to the undersides of the leaves can deter whiteflies. Follow the manufacturer's instructions for application.
    d. Insecticidal soap or horticultural oil: These products can also be effective in controlling whiteflies. Follow the product instructions carefully.

    Black spots:

    Black spots on rose leaves are a common fungal disease called black spot. This disease can weaken the plant and reduce its overall health.
    To manage black spot, you can try these methods:
    a. Prune affected leaves: Trim away leaves with black spots and dispose of them. This will help reduce the spread of the disease.
    b. Fungicide: Apply a fungicide specifically designed to control black spot. Follow the product's instructions for application.
    c. Good air circulation: Ensure your rose plant has adequate spacing between other plants to promote air circulation, which can help prevent the development of black spot.
    In addition to addressing these issues, here are some general tips for caring for your roses during the winter:

    Watering: Reduce the frequency of watering during the winter months, as the plant's growth slows down. Make sure the soil is well-draining to avoid waterlogged roots.
    Mulching: Apply a layer of mulch around the base of the rose plant to help insulate the roots and protect them from extreme temperature fluctuations.
    Winter protection: If you experience extremely cold winters, consider using burlap or rose cones to protect your roses from freezing temperatures and harsh winds.

    Thank you.

    I wasn't sure if the homemade washing up liquid in water that I'd sprayed on the greenfly was the cause of the leaves turning. 

    I've picked an awful lot of leaves off some just fall off. 
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