Hi
I hope you have a good time
i wonder if someone could diagnose the problem of pepper. These fruits was divided into two pieces and there was no pest.
please help me.
Hi Mr Oadi Matny
I have special thanks in advance for your cooperation. I wonder if you could say to me:
Why do you think this problem has caused by irregular in irrigations? Do you think if it is not an anthracnose ?
I will be glad to answer you,
Hi, this is physiological disease because lack of calcium? A'm not sure but after mineral analysis.....
Hi Mr Marek Kopacki
Thanks a million. I think this problem is not related to lack of calcium. Because lack of calcium causes blossom end rot in fruits. As you see, these cankers have been caused in the middle of the fruit.
By the way, i really appreciate it.
Hi Elaheh: When the problem is common in the field that mean its is environmental or physiological problem, but when the infections is as spot area in the field that mean mostly, the causal agent is pathogen.
and you can direct test by microscopic to confirm if it is an anthracnose
It seems the pepper has an element deficiency. In the other hand some mites can be cause the similar symptoms on the fruit, on the citrus for example.
Hi, Elaheh
I think that boron deficiency which can promote the occurrence of anthracnose. Boron is an essential element for welding the carpel during fruit development.
Dr Athayde Thanks a million.
I am afraid I didnt understand your mean. Do you think if this problem is related to boron deficiency or anthracnose or both of them?
Dr Athayde, As you know anthracnose disease cant establish on the leaves of plant but if leaves of plant is Infected by colletothricum, it must be seen on the older leaves. is it true?
on the other hand, the symptom of boron deficiency must be seen on the younger leaves of plant.
Do you think if this method is a way to help we diagnose the cause of this problem?
Hi Elaheh,
The photograph is of tomatoes? Not so.
Maybe you have a calcium deficiency, which usually occurs in the apical part of the fruit.
Greetings.
Hello,
I think it is an Alternaria species (perhaps Alternaria solani).
But the pictures show tomato not pepper.
All the best,
Hi, in most cases these symptoms on tomato fruits are associated with low temperatures during flowering and fruit set or virus infection. Boron and calcium deficiency is reflected in the blossom end rot.
Best regards, Franci
My first bet is boron defficiency, usually responsible for healed cracks exposing the placenta and the seeds. Water supply, temperature and nutritional balance probably predispose the plant to this disorder. I do not think there is any biotic agent involved. The distribution of affected plants is an aid to a precise diagnostic. General distribution in the field suggests a physiological disorder in contrast to a virus disease, for example.
Elaheh, do know the soil characteristics? Boron deficiency made worst by:
sandy soils, alkaline soils, soils low in organic matter, high levels of nitrogen and high levels of calcium. Have you noticed there are other symptoms?? With severe boron deficiency, the growing points of main shoot and laterals die. The younger leaves remain small, are curled inwards and deformed. They show chlorotic spots between the veins which are yellow to orange and the veins themselves can become yellow or purple. The older leaves appear yellowish green.
Hi
I hope you have a good time. I apologize for delay reply.
I have a special thanks in advance for your cooperation with me.
Thanks a million.
Dear Elaheh Gerami
This is an abiotic stress, most probably related to unsuitable climatic conditions during fruiting.
These peppers look like tomatoes
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