Which disease is caused by Helminthosporium oryzae?
Cochliobolus miyabeanus (formerly known as Helminthosporium oryzae) is a fungus that causes brown spot disease in rice.
What fungus causes Bengal famine?
Though administrative failures were immediately responsible for this human suffering, the principal cause of the short crop supply in 1943 was the epidemic of brown spot disease which attacked the rice crop in Bengal in 1942 .
What causes brown spot of rice?
Brown spot is caused by the fungus Cochliobolus miyabeanus. Also called Helminthosporium leaf spot, it is one of the most prevalent rice diseases in Louisiana.
What are the symptoms of rice blast?
Blast symptoms appear on leaves as elliptical spots with light-colored centers and reddish edges. The most serious damage from rice blast occurs when the disease attacks the nodes just below the head, often causing the stem to break.
How did the Bengal famine start?
For many years, the British blamed the famine on weather conditions and food shortfalls, as if it were an unavoidable natural disaster. Today, most researchers agree that the crisis was human-made, triggered primarily by war-time inflation that pushed the price of food out of reach.
Which fungicide is effective for control of blast of rice?
It was found that the fungicide Tricyclazole (Baan 75WP) at 0.06% was most effective and provided disease control of 67.9% followed by Propiconazole (Tilt 25EC) at 0.1% with 60.3% disease control, Azoxystrobin + Difenoconazole (Amistar Top 325SC) at 0.1% with 55.1% disease control and Trifloxystrobin + Tebuconazole ( …
What Churchill said about Bengal famine?
On 7 October, Churchill told the War Cabinet that one of the new viceroy’s first duties was to see to it “that famine and food difficulties were dealt with.” He wrote to Wavell the next day: “Every effort must be made, even by the diversion of shipping urgently needed for war purposes, to deal with local shortages.” By …
How did the Bengal famine end?
As a result, “civilian consumption of cotton goods fell by more than 23% from the peace time level by 1943/44”. The hardships that were felt by the rural population through a severe “cloth famine” were alleviated when military forces began distributing relief supplies between October 1942 and April 1943.
What is drechslera mold?
Drechslera is a genus of fungi that taxonomically belongs to the family Pleosporacae, order Pleosporales, class Dotideomycetes, division Ascomycota, kingdom Fungi. Many species of the genus Drechslera are plant pathogens, particularly grasses.