0
points
Ginger leaves turn brown and dry out

General    India

Hi All. I have a small ginger garden and it is planted 6 month back. Now I have noticed that the all the leaves(starting from lower) are turning brown and dry out. But the stem is healthy and it looks green there is no problem with rhizomes too. I have provided regular water irrigation and periodically chemical/bio fertilizers also the field is having proper drainage. The same field I have 5 month old ginger plant it is not having the above mentioned issue. How we can help the plant to get more green leaves? Any one please help me to find out the cause and remedy of the issue to save my plant or suggest me what chemicals /fertilizers I have to provide the plants. I have attached the photos of different stages of the disease. Please suggest me what action I have to taken next .same disease I have noticed in different fields in nearby 1 KM. this disease is spreading from one corner to other slowly .do I need to provide any additional minerals or nutrient ? Many thanks in advance for your valuable suggestions.


Posted by: Sreebin (1 point) Sreebin
Posted: October 13, 2016

Email about this post

Share
Sreebin commented,
I am providing water (2 days one)and bio and chemical fertilizers periodically
over 1 year ago.



Answers

0
points
The bronzing, wilting and dying of ginger plants may occur due to following pathogens 1. Bacterial wilt caused by <i>Ralstonia solanacearum</i> 2. Dry rot caused by Fusarium and Pratylenchus complex To diagnose further please perform the following tests and let us know. a. You have to perform the ooze test to know if it is a bacterial wilt or not. Cut the pseudostem near the base and immerse it in a glass of water to see if any white substance oozes out form it (image attached for your reference). b. Is there any discoloration in vascular tissue? See the cut opened psuedostem for any brownish ring which is restricted to cortical region.


Posted by: Dr. Ravishankar Narayana (134 points) Dr. Ravishankar Narayana
Posted: October 13, 2016

Email about this post

Share


0
points
I have done ooze test ,I haven’t see any white substance. I suspect that cause may be as you expected “2. Dry rot caused by Fusarium and Pratylenchus complex”


Posted by: Sreebin (1 point) Sreebin
Posted: October 14, 2016

Email about this post

Share
Dr. Ravishankar Narayana commented,
Thanks for your reply. Is it possible to upload images of cut open pseudostem and rhizome? It will be useful information for everyone.
over 1 year ago.

Sreebin commented,
ok i will share the images soon. could you please help me to find solution for the disease? any fungicide needs to apply ? suggest me
over 1 year ago.

Dr. Ravishankar Narayana commented,
There is nothing you can do at this stage. Remove the infected plants and burn them. Don't grow ginger in the same plot for one or two season. Apply mustard oil cake or neem cake to soil to control nematode. Provide proper drainage to soil. Next time use certified seed materials.
over 1 year ago.

Sreebin commented,
how can i protect ginger in near by fields? which is healthy now .is it spread ? what precaution i have to take for this and in future years .i got a suggestion to use fungicide will it work in my case ?
over 1 year ago.

Dr. Ravishankar Narayana commented,
Usually the pathogen move very slow in the soil. But it can be easy transmitted to healthy field if you use same equipment. Make sure to clean and sterilize the equipment's before and after use. Also don't transfer soil from infected to healthy field. There is no effective chemicals to control soil borne fungi. So there is no point in using fungicide. After harvesting deep plough the land and cover with black plastic mulch (soil solarization) to kill the pathogens.
over 1 year ago.

Sreebin commented,
Do i can use the ginger from the same area for seed purpose .or near by places . what is the chances of getting the same disease in new field? any precaution need to take for new field
over 1 year ago.

David Hughes commented,
No, you shouldn't take ginger for the same areas as the risk of contamination is high. It varies according to disease. Are you close to a Unviersity or Goverment lab for testing?
over 1 year ago.

Sreebin commented,
thanks for the reply . we have noticed the disease is only stunt the growth .what ever the ginger(rhizome) developed before all seen good and nothing found less while harvesting .what disease it was? is it because of any nematode ?
over 1 year ago.

Sreebin commented,
thanks for the reply . we have noticed the disease is only stunt the growth .what ever the ginger(rhizome) developed before all seen good and nothing found less while harvesting .what disease it was? is it because of any nematode ?
over 1 year ago.



You need to log in if you'd like to add an answer or comment.