IMD’s Agrimet has advised farmers in Chhattisgarh to control the spread of aphids in mustard crop. Due to previous cloudy weather condition in the state, the incidence of aphids in mustard crop is likely to increase. Farmers have been advised to keep a watch and spray pesticides if the infestation is above economic threshold level. The state has sown mustard across 138,000 ha as of Thursday, up 14% from a year ago.