This is my four season growing tomatoes and I just cant seem to get it right. The first two years I used just pots, last year and this year I chose the ring cluture method (bottomless pots into grow bags). The plants have always been bought at a garden centre and are very healthy. Every year I get leaf curl, all the way up the plant not just a few at the bottom. When you gently squeeze the leaves in your hand the seem dry. Although I end up with a small amount of fruits i know somethings not right. This year I filled the pots up with half well rotted manure and half grow bag compost. Previous 3 years I just used grow bag compost. The greenhouse is well ventilated. The plants are watered every morning. Fed once a week with Tomorite. What am I doing wrong? My neighbour has given me one of his plants to see how it fairs in my greenhouse. He has a polytunnel and his plants lok right, dark green, flat leaves. No curl at all. The temperature in my greenhouse and his polytunnel was the same. We are both at a loss as to why mine are like this. My greenhouse is cleaned every year with ***** Fluid. We are both at a loss. Four year running and still not right.

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