Hi
would someone please tell me what is the cause of these problems on tomato?
kindly notice that the flowers of tomato have withered and dries. these tomato was planted in open field.
Are all plants ?, what patron these symptoms in the lot ?.
Start up various plants and observe the root and stem inside making a longitudinal cut.
How it has been soil moisture , pH, levels of N - Phosphorus -K ....? .
Reserche in a groove; Apply irrigation and then a 250cc drench solution / plant ; Humus 2L + 3kg molasses+ 500g magnesia sulfate , 1kg monopotassium phosphate + / 200L water
Elaheh, has been glyphosate herbicide used between rows of tomato?
Regards, Franci
This symptom showed phosphorus deficiency because violet colour leaves showed.
Hi
Dear Edgard Ortegon
This disease has just been seen almost 20 percent of tomato plants in field. i think this disease related to deficiency of calcium. these tomato plants was planted in open field and because of cold weather, calcium couldn't be absorbed.
Hi
Dear Franci Aco Celar
I asked such questions farmers and hetold me no
Hi
Dear Shrvan Kumar
'I don't think either. as you see leaves at the top of the plant has have became Violet. i think it is related to cold weather.
Symptoms of calcium deficiency was first seen on the oldest leaves. In cold weather, the transport of phosphorus in the plant is limited. For this reason, the violet coloration of the leaves.
My dear madam,
Actually in cold stress condition phosphorus protect them and deficiency also created. this element help in cell enlargement and division.
Iron deficiency is a candidate, but it should be generalized in the field, as well as other nutrient defficiency and cold spell. Herbicide injury, also possible, should be related to contaminated sprayer or wind direction. Virus infection is expected to be scattered in the field.
Could it be nutrient deficiencies? Not sure how wide spread the issue is in the field. Check out this link http://www.haifa-group.com/knowledge_center/deficiencies/crops/vegetables/tomato/
Keith Lockhart
http://www.haifa-group.com/knowledge_center/deficiencies/crops/vegetables/tomato/
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