Annual Report of the Indian Central Cotton Committee for the Year Ending 31st August 1938

During the past few years the Committee collaborated with the Imperial Council of Agricultural Research in the scheme for investigating the cost of cultivation of cotton sugarcane and their rotation crops in the principal cotton and sugarcane growing areas of India. [...] The usual sowing time of cotton in the tract is the latter half of August but on account of failure of early rains the sowing had to be postponed till the first week of October ; the results from such late sown crop cannot therefore be taken as normal and no conclusion of value can be drawn from the results of the past season. [...] The Punjab Botanical Scheme was started in 1925 with the object of investigating the causes of the periodic failures of American cotton in the Canal Colonies and obtaining suitable types of American and Desi to replace the 4F and Desi cottons respectively. [...] Insulana is very common during the whole of the cotton season and is the major pest of this orop in the province.18 The incidence of Spotted Bollworms (Fabia and insulana) was studied at 5 stations representing the important cotton growing tracts of the province. [...] Scheme for Cotton Jassid Investigation.—This scheme was sanctioned by the Committee in March 1937 and came into operation on the 1st April 1937 the object being the study of the jassid insect in the Punjab as regards its habits alternate host plants and the characters of the plant which determine resistance to the pest.