Overall, there was a 32 per cent rise in the number of cyclones between the years of 20. A year later, Arabian Sea saw five cyclones. In 2018, while the Bay of Bengal maintained its average of four cyclones a year, Arabian Sea gave rise to three instead of one. However, in the past few decades, the average number of storms to occur over the Arabian Sea and the time of the year when they do have both demonstrated a changing trend. On the other side, only about 25 per cent of the cyclones that formed in the Arabian Sea, approached the coast during both pre- and post-monsoons. Among the cyclones that formed in the waters of the Bay of Bengal, over 58 per cent approached the coast during the October-November post-monsoon season, while 30 per cent did so during pre-monsoon season. Between 18, 48 tropical cyclones impacted the west coast, of which 24 were severe cyclonic storms, while about 308 cyclones, including 103 severe cyclonic storms, impacted the east coast of the country from the Bay of Bengal.Ĭyclones occur in the pre-monsoon months of May-June and the post-monsoon months of October-November. West Indian Ocean normally sees an extremely small number of cyclones and tropical storms. The Arabian Sea and the Bay of Bengal are both a part of the Indian Ocean, which extends on the west along the African coast and Madagascar upto the Arabian Peninsula and Gulf of Oman, down to the North Indian Ocean below India, along the Andaman Sea, and goes all the way to the Australian coast. Increasing numbers of cyclones in changing times However, the presence of Tauktae in the Arabian Sea at this time of the year is concerning, and closely follows the very visible trend of an increasing number of severe, strong cyclones in the sea.Īlso read: Navy rescues 177 from barge adrift off oil fields in Bombay High due to Cyclone Tauktae The last two have wind speeds of over 160 kmph and 210 kmph, respectively. The IMD categorises tropical storms, which rotate in an anti-clockwise direction, into Depression, Deep Depression, Cyclonic Storm, Severe Cyclonic Storm, Very Severe Cyclonic Storm, Extremely Severe Cyclonic Storm, and Super Cyclonic Storm. The storm moved along the coast of Karnataka on 15 May, beginning a rapid intensification from a ‘Severe Cyclonic Storm’ to a ‘Very Severe Cyclonic Storm’, and then to an ‘Extremely Severe Cyclonic Storm’. It originated in the Arabian Sea and was first observed by the Indian Meteorological Department on 13 May moving eastward, and then subsequently north, while intensifying. The cyclone is currently classified as an ‘Extremely Severe Cyclonic Storm’ and is the fifth-strongest cyclone ever in recorded history in the Arabian Sea. © 2016, Koninklijke Nederlandse Planteziektenkundige Vereniging.Bengaluru: The powerful Cyclone Tauktae (pronounced ‘tau-tay’ in Burmese) battered the coast of Gujarat Tuesday morning, unleashing a fury of rainfall and winds in the states along the west coast. acutatum clearly indicate for leaves as a potential source of inoculum for fruit infections. The discovery of apple leaves containing conidial masses of C. In all orchards and seasons investigated, incidence and severity on leaves varied from 0 to 67 % and 0 to 85 %, respectively. There was no correlation between incidence of conidial masses of C. After storage, bitter rot was found on apple fruit from all eight orchards. Aroma over three years, with a mean incidence of 5.5 %. The fungus was detected on leaves from six of eight commercial orchards of cv. acutatum developed on leaves on both shoot types, and there was no difference in incidence between these two types. Aroma and Elstar showed that conidial masses of C. Sampling of leaves from fruit spurs and vegetative shoots of cvs. The first finding of conidial masses occurred in the second half of July, and there was a higher incidence occurring in August and September. Aroma from late May to late September during three growing seasons. Number of leaves (incidence) and leaf area covered (severity) with conidial masses of C. Leaves from apple orchards in southern Norway were sampled, frozen for five hours and incubated for six days to reveal presence of asymptomatic infections of C. Abstract View referencesįungi within the Colletotrichum acutatum species complex occur asymptomatically on plant parts of many different plant species.
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