Insect pests and its natural enemies on marigold in northern hill region of Chhattisgarh

The sucking pests, aphid and thrips were observed in last week of November to first week of February. Aphid and thrips peak population were observed in second week of January. Mites population was noticed on the crop in the third week of November to first week of February. Mite population observed peak in first week of January. The pod borer, Helicoverpa armigera population was observed on fourth week of December to first week of February, larvae population of reached its peak during the fourth week of January. The population of natural enemies on marigold field was observed on the basis of number from third week of November to first week of February 2016-17.