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Excellent tip about planting Basil with tomatoes to deter white fly. Hope it works in the greenhouse.
how often and how much water does a tomato in a pot need when the trusses have set
How many tomato plants do you plant in a 14" hanging basket? can someone let me know please.........
Encourage wasps in the greenhouse; they are carnivorous and will deal with the whitefly. They will soon get used to you and not sting you. And they are fascinating to watch.