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  • Tomato problems

    Has anyone else managed to grow tomato plants this year?

    I have been growing tomatoes successfully for years using the following method, with plants on self watering trays under lights until they get too big:
    Jan - sow 2 seeds for the windowsill (Shirley)
    Feb - sow 4 more Shirley for the windowsill plus 2 balconi to grow on the windowsill then in the garden.
    In late March and April I take sideshoot cuttings from the January sown plants to grow on in my friend's greenhouse.
    April sow outdoor varieties (usually Sungold, Ferline, Oh Happy Day), several seeds to a pot, pot them up when they have 2 true leaves.
    By the end of May/early June the outdoor plants are getting too big for the lights and I plant them out under cover, having to take their chances with frost. I have not lost one yet.
    That was the situation up to the end of 2020.

    This year I started the Shirley as usual, and apart from issues with mushrooms growing in the compost and uprooting the seedlings, they have done ok. They were rather slow however, and by mid April they had gone rather yellow and no sideshoots appeared that were big enough to pot up until the very end of April. The Shirley seedlings recovered are now big plants on the sitting room windowsill, but despite my usual method of tapping the flowers, a lot of them are not setting fruit.

    The Balconi were sown as usual in February and were very slow to germinate, so the mushrooms appeared first. One of them germinated by mid March, so I sowed another 2. These germinated, but all but one leaf fell off one of them, and it is only now starting to re-grow and is about 6 inches high with no sign of flower buds. The other 2 plants are a foot high, bushy and with fruit forming.

    Most of the Shirley sideshoots have taken well, and the best ones have been planted in my friend's grenehouse and are starting to set fruit. But some of them went yellow and leaves started to fall off and have grown very slowly, although they do tend to recover eventually. The last 3 sideshoots, treated exactly the same way, have gone mouldy in the middle and died. I have had this happen before, usually to later sideshoots, and I am not particularly bothered as I have just about enough Shirley anyway.

    The later sown varieties have been a complete disaster. I sowed 2 Oh Happy Day, 5 Ferline and 6 Sungold. All germinated except for one of the Oh Happy Day, and having run out of seed I sowed 2 Crimson Crush to replace it, of which one germinated. I potted them up into new compost (not the bag that grew mushrooms). So far so good.

    The seedlings quickly went yellow and the lower leaves started to go a pale brown and wilt, then dropped off. Some of the plants were worse than others - the Ferline fared best and were judged big enough to put the 3 best plants in the growhouse on 7th June as they were starting to go yellow and lose their bottom leaves. By the next morning one of the plants had a damaged stem, presumably due to a slug or snail - this has never happened before. As it was warm I decided to plant them in the ground with a mulch of Strulch to keep the slugs off (I usually do this). The plant with the damaged stem wilted and I decided to cut it off and put it in water to root, which it did, and it is now in a pot on the windowsill, looking happy. I replaced it with one of the other 2 plants which had been waiting for space at the allotment.

    Encouraged by this I planted out the 4 biggest Sungold on 13th June - these were smaller and sicker looking. The next morning the smallest 2 had both been severed at soil level. I brought them in and put them in water - one of them looks as if it might survive:

    Click image for larger version  Name:	006.JPG Views:	0 Size:	895.9 KB ID:	2527825

    The other one died. The 2 in the soil look happier and are starting to grow.

    The Oh Happy Day and Crimson Crush are still upstairs under lights, and are yellow and unhappy. They were potted up about a week ago into new compost (I never normally do this), but they are not looking any happier and I am starting to despair that they are never going to grow:

    Click image for larger version  Name:	005.JPG Views:	0 Size:	960.4 KB ID:	2527826

    I must stress that these plants have NOT been watered from the top - they are sitting on capillary matting with a water tray underneath, exactly as I always do. The plant in the background is the bigger of the remaining 2 Sungold.

    This morning I noticed that the middle of the 3 Ferline plants, which was a happy, healthily growing plant yesterday, had collapsed. The stem had been severed just below ground level. Given the trouble I have been having with tomatoes this year, this reduced me to tears. There are a few roots on the stem so I put it back in the ground and watered it in. This is what it looks like now:

    Click image for larger version  Name:	007.JPG Views:	0 Size:	975.8 KB ID:	2527827

    Advice please - should I leave it where it is? Should I pot it up in compost and put it in the growhouse? Should I put it in water first?

    HELP!!
    Last edited by Penellype; 20-06-2021, 08:18 AM.
    A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP. - Leonard Nimoy

  • #2
    Been a terrible year.
    We've had yellowing (not to mention botrytis and blossom end rot)
    By way of encouragement, manky curled leaf, yellow plants do seem to keep going and yield fruit. Just carry on carrying on.

    Gardener's Delight
    Click image for larger version  Name:	IMG1624174397541.jpg Views:	0 Size:	1.29 MB ID:	2527830
    Last edited by quanglewangle; 20-06-2021, 08:43 AM. Reason: Typo
    I live in a part of the UK with very mild winters. Please take this into account before thinking "if he is sowing those now...."

    Comment


    • #3
      Originally posted by quanglewangle View Post
      Been a terrible year.
      We've had yellowing (not to mention botrytis and blossom end rot)
      By way of encouragement, manky curled leaf, yellow plants do seem to keep going and yield fruit. Just carry on carrying on.

      Gardener's Delight
      Click image for larger version Name:	IMG1624174397541.jpg Views:	0 Size:	1.29 MB ID:	2527830
      Thanks - I forgot to mention the BER on the Shirleys - par for the course in hot sunny weather on the windowsill.
      A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP. - Leonard Nimoy

      Comment


      • #4
        I too am behind and I am still removing frost/cold damaged leaves as new ones are growing, fruit is now setting but I fear a smaller crop is coming, I put it down to the weather and I don't think I could have done much about it. Conversely it looks like a bumper crop of chillies and peppers may be happening and they went through the same treatment as the tommies.

        Comment


        • #5
          I would blame the weather but it is hard to do that when the plants are grown indoors under lights! I should perhaps also mention that I have had problems this year with peas, beans, peppers, cabbages and calabrese, all of which have had less than 50% germination despite being new seed in most cases. I've also noticed small white maggots in the compost on occasions (although not with the tomatoes) - I assume these are scarid flies, which I always get but have not noticed the maggots before. Lettuces, romanesco, courgettes, cucumbers and melons are growing normally as are the flowers I sowed (calendula, cosmos and antirrhinum).

          Compost used is Westland Big Tom growbags for the tomatoes and peppers, Jacks Magic for the others. The Jack's Magic is new this year because I could not get Westland MPC.

          The lights I have used are a mixture of T5 bulbs in the grow light garden and the tall light, and LED lights for overflow. One of my grow light gardens broke last year and I noticed that plants grown under the LED lights looked a bit yellower than the others , but they grew ok and recovered quickly. I'd blame the LED lights this year except that some of the plants under them have been fine, and some of the yellow plants have been under the taller light with the T5 bulbs...
          Last edited by Penellype; 20-06-2021, 09:38 AM.
          A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP. - Leonard Nimoy

          Comment


          • #6
            ^^^mine are under lights too, supplemental in the greenhouse.

            I have just dealt with the pathologies one at a time: extra Mg and Ca for blossom end rot; overnight dehumidifier for botrytis; watering only after careful monitoring of soil moisture.

            But still....
            I live in a part of the UK with very mild winters. Please take this into account before thinking "if he is sowing those now...."

            Comment


            • #7
              The thing that bothers me most (apart from plants not growing big enough to plant out) is good big healthy plants being chopped off at ground level. I haven't a clue what's happening but by the time they reach a height of 12-15 inches when planted out, you sort of assume they are safe!
              A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP. - Leonard Nimoy

              Comment


              • #8
                Originally posted by Penellype View Post
                The thing that bothers me most (apart from plants not growing big enough to plant out) is good big healthy plants being chopped off at ground level. I haven't a clue what's happening but by the time they reach a height of 12-15 inches when planted out, you sort of assume they are safe!
                Most likely, the cause of losing big plants is down to a pest eating round the stem at ground level - slugs perhaps ?

                Comment


                • #9
                  I have seen woodlice cut into stems in dry weather. I found them after dark by torch light.
                  I planted a plum variety in modules and the leaves went purple with the cold.
                  I put them out doors under large clear cooking fat bottles and they began to produce lush green leaves and are now with the covers off a foot high with lots of flower buds.
                  I had a couple more in the greenhouse border and they are more leggy and are now damaged due to a pheasant getting in.
                  The pheasant is for dinner this evening.
                  There is no vent in the greenhouse so I have to leave the door open when it is hot.
                  Near Worksop on heavy clay soil

                  Comment


                  • #10
                    Originally posted by Penellype View Post
                    I would blame the weather but it is hard to do that when the plants are grown indoors under lights! I should perhaps also mention that I have had problems this year with peas, beans, peppers, cabbages and calabrese, all of which have had less than 50% germination despite being new seed in most cases. I've also noticed small white maggots in the compost on occasions (although not with the tomatoes) - I assume these are scarid flies, which I always get but have not noticed the maggots before. Lettuces, romanesco, courgettes, cucumbers and melons are growing normally as are the flowers I sowed (calendula, cosmos and antirrhinum).

                    Compost used is Westland Big Tom growbags for the tomatoes and peppers, Jacks Magic for the others. The Jack's Magic is new this year because I could not get Westland MPC.

                    The lights I have used are a mixture of T5 bulbs in the grow light garden and the tall light, and LED lights for overflow. One of my grow light gardens broke last year and I noticed that plants grown under the LED lights looked a bit yellower than the others , but they grew ok and recovered quickly. I'd blame the LED lights this year except that some of the plants under them have been fine, and some of the yellow plants have been under the taller light with the T5 bulbs...
                    I've used Jacks magic this year and have had some good results, both for seeds and for potting on.

                    Comment


                    • #11
                      Originally posted by Plot70 View Post
                      I have seen woodlice cut into stems in dry weather. I found them after dark by torch light.
                      I planted a plum variety in modules and the leaves went purple with the cold.
                      I put them out doors under large clear cooking fat bottles and they began to produce lush green leaves and are now with the covers off a foot high with lots of flower buds.
                      I had a couple more in the greenhouse border and they are more leggy and are now damaged due to a pheasant getting in.
                      The pheasant is for dinner this evening.
                      There is no vent in the greenhouse so I have to leave the door open when it is hot.
                      If a child damaged a plant is it ok to eat them! Disgusted!!!!! That comment is horrible to read but you don’t realise.
                      Location : Essex

                      Comment


                      • #12
                        Originally posted by Jungle Jane View Post
                        If a child damaged a plant is it ok to eat them! Disgusted!!!!! That comment is horrible to read but you don’t realise.
                        The more disgusting part is that you believe that analogy to be even slightly appropriate.
                        Pheasants are game birds, there are millions of them in this country, and they are not even native in the first place. As long as the bird was killed humanely I see no issue.


                        Originally posted by nickdub View Post
                        Most likely, the cause of losing big plants is down to a pest eating round the stem at ground level - slugs perhaps ?
                        Not likely to be slugs. They don't really like tomatoes (I guess it's the taste). I think some type of cutworm is more likely.

                        Comment


                        • #13
                          I don’t eat any birds it’s appropriate to me. Its an issue that it’s illegal to kill them at this time of year isn’t it,they’re protected like any other protected bird. Could you get arrested then?
                          Location : Essex

                          Comment


                          • #14
                            Mine are only just starting to set fruit but that's no later than normal. I must admit that it doesn't seem to be any worse than usual this year, the plants are growing reasonably well and healthily, just taking their time.

                            Going back to the original question though, it does look a bit as though the seedlings are overwatered which would mean that they haven't developed a good root system. I'd question your compost, if you're getting mushrooms then it doesn't sound as though its properly sterile. Is it old? kept from previous years? Last year I got (what looked like) Bacterial Canker which I put down to using a mixture of garden compost and fresh tomato bag compost so this year I have only used commercial compost for my tomatoes and everything seems fine (at the moment).

                            Comment


                            • #15
                              Originally posted by nickdub View Post

                              Most likely, the cause of losing big plants is down to a pest eating round the stem at ground level - slugs perhaps ?
                              Could be slugs but I have never had slug damage on tomatoes before. The strulch is supposed to deter slugs

                              A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP. - Leonard Nimoy

                              Comment

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