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  • Yellowing tomato leaves

    Just noticed this on bottom leaves of a couple of my tomato plants in the plastic greenhouse yesterday.


    Wondering if anyone can help with the possible cause (watering, feeding, disease?) and whether its something to worry about.

    The plants are in 6in pots and I think they could really do with planting out, but these are to go outside in the raised bed so figured I should wait a few more weeks. I haven't started feeding them yet for the above reason although flowers are starting to appear. Also they are fairly close together on the shelf and the leaf problem seemed to coincide with the first damp humid weather we have had in ages. Any advice on the approriate course of action would be much appreciated.

    Another quick question - I potted up 3 tomato plants that are beginning to flower and are to stay in the plastic greenhouse into their final 30cm pots yesterday. The compost (Horizon peat free veg) said it contained feed for 4-6 weeks so just wondered if I should wait this long before giving any specific tomato feed.
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  • #2
    First thing I would do is remove the complete stalk with the damaged leaves the repot in to new compost and plant them deep upto the next leaf stalk if possible. It would also help if you could get a decent air flow around the plants as this helps to prevent pests etc.

    As to feeding the time to start is when the first truss has set fruit.

    Colin
    Potty by name Potty by nature.

    By appointment of VeggieChicken Member of the Nutters club.


    We hang petty thieves and appoint great ones to public office.

    Aesop 620BC-560BC

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    • #3
      Is it only on the bottom leaves? Have they been in contact with the compost? (I see some on the armpit area of the left plant). As Colin says, remove the leaves definately - you don't want the issue spreading to the rest of the plant.

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      • #4
        If it's Powdery Mildew, then try mixing 1 part Milk to 9 parts water and spray the foliage, repeat again in a few days.
        I love growing tomatoes.

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        • #5
          Nah, powdery mildew is white & looks like finely dusted talcum powder
          All gardeners know better than other gardeners." -- Chinese Proverb.

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