A leaf spot disease is the most important of these problems.
You can support quality journalism by turning off ad blocker or purchase a subscription for unlimited access to The Hindu. Black or yellow sigatoka is a damaging and contagious disease that results in grayish spots edged in dark brown on the leaves of the dwarf banana tree.
Fungicides are routinely used in commercial plantations to control black leaf streak (BLSD) and Sigatoka leaf spot, as well as post-harvest diseases. Commercial growers also use aerial spraying and systemic fungicide application to control the disease. 0 ��F� icia ural v. .
Lagoda, X. Perrier, F. Bakry, H. Tezenas du Montcel, C. Lanaud, and J.P. Horry. The first signs of black sigatoka are red/brown spots on the underside of leaves and dark or yellow bordered spots with a gray center. Infection on younger leaves is more severe causing them to dry up more quickly. 1994. However, not all diseases caused by fungi can be controlled by fungicides. Please turn on JavaScript and try again.Black Sigatoka of Banana: The most important disease of a most important fruitPloetz, R.C.
H�\�͎�0�}��˙�(__R�D�H,���>@H�T�(�o_�h*i��bs>�������w�ɿOCs��9w};��p��hN���ٲ0m������k=fy�||��x=��!+K��Ho��0/�v8��,�6�q���y��=���x�?���,�zm�xN_�����h�絷C��w��-��w��c��x~^�m��u���Ĭ\��ڔ��Zg�o�{�*x�tn~�SV8�X���-�Ev�Y����yżB�0o���[��90�=sB���]2/���6�fA���i�pZ��i�0[�-̖f���+d�-��~����o�����/����/����/����/����/����/����/����/�;���~������w�;���~������w�;�̎f������U�*{��^E��Wѫ�U�*{��^E�rn��) It has helped us keep apace with events and happenings.The Hindu has always stood for journalism that is in the public interest. Appreciable fruit loss occurs as there is drastic reduction of leaf surface area for photosynthesis.Infected banana plants produce fruits of inferior quality as the banana fingers produced do not develop properly and remain small and thin.Spores of the fungal pathogen form in abundance during tropical and sub tropical summers along with intermittent rainfall especially if there is a film of water on the leaves.The principal means of spread is through rain but later with the progressive development, spores are also discharged through air currents.Spotting of leaves starts to increase during June, July, peaks in October-November and remains at a high level through December.Management mainly involves chemical control using fungicides like copper oxychloride, mancozeb, chlorothalonil or carbendazim at the prescribed dosage.Fungicide spraying on the foliage and pseudostem should be commenced with the initial appearance and repeated at two weeks’ interval. Fullerton, R.A., and R.H. Stover (eds.). Yields from such plants are usually a half or less than that from healthy plants. Montpellier, France. First report of black Sigatoka in Florida. _}�;:Σ��5���uцs�?��䷑�7-(���J�Q�� _Eq��$��NF[�lg+�]D�(x �=�����*BE*�HK��b��U$EJ��ae#� Printable version | Aug 9, 2020 3:27:27 AM | https://www.thehindu.com/sci-tech/agriculture/Control-of-sigatoka-disease-of-banana/article12561280.ece Sigatoka leaf spot diseases. 1964. Gauhl, F. 1994. Later, the disease was reported in the Sigatoka District on the island of Viti Levu, Fiji, in 1912. In Brazil, where the pathogen occurs in al… Converting these operations to the production and handling of another type of banana would be an expensive proposition. u . Sigatoka leaf spot is a serious disease of banana that destroys large areas of plantations resulting in severe reduction in fruit yield.The commercial cultivars nendran and robusta are highly susceptible to this infestation whereas in rasthali and palayankodan varieties the disease severity is less.This infestation is caused by a fungus and was first recorded in the Sigatoka valley of Fiji. (Disease Note) Plant Disease 83:300.10. At this difficult time, it becomes even more important that we have access to information that has a bearing on our health and well-being, our lives, and livelihoods. To enable wide dissemination of news that is in public interest, we have increased the number of articles that can be read free, and extended free trial periods. We promise to deliver quality journalism that stays away from vested interest and political propaganda.Your support for our journalism is invaluable. At this difficult time, it becomes even more important that we have access to information that has a bearing on our health and well-being, our lives, and livelihoods. We have been keeping you up-to-date with information on the developments in India and the world that have a bearing on our health and wellbeing, our lives and livelihoods, during these difficult times. Montpellier, France. Stover, R.H. 1980. Although the international trades can add this expense to the price they charge for fruit, this is not an option for subsistence farmers.
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