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Posted by HarryandJoan (U14104550) on Tuesday, 23rd August 2011
My tomato plants are in a poly tunnel and I thought doing OK. recently the yellow flowers have started to drop off and leave brown dried up leaves in their place and no fruit to develop.
What am I doing wrong?I am watering daily and feeding once a week.
Lack of pollination - are bees and other insects able to get in? You can do it yourself with water mist or a cotton bud but it's very tedious.
, in reply to message 2.
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While tomatoes are self-fertile, they will still need help to pollinate in a covered environment. Normally, a tap with the back of the hand is all that is needed to disturb the pollen.
Commercially, they use mini hives of bumble bees or a vibrating wand to effect the pollination.
From what you say the air is too dry in your polytunnel. Have you tried spraying the tomato plants with clear water? A fine spray, and a scrupulously clean sprayer.
It sounds as though your tomatoes are a wash-out for this year as anything that is fertilized from now on will probably end up as green tomato chutney.
It also sounds as though your courgettes are not being fertilized. This is down to insects, but perhaps it is too dry for them too.
No bees?
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