Fruit Generation in the Life History of Atteva fabriciella (Swed.) a Defoliator of Ailanthus excelsa Roxb

Larvae of Atteva fabriclella,a serious deCollator DC Ailonthus exeelsa pass summer mOltths lit the samara. and thus fills the lacuna In the studies of life history oC the defollator. Two fruit generations have been recorded. First fruit generation occur. during April, May and lasts for 27-30 days. The second fruit generation start. in May-June and is completed by June-July. This generation also lasts for 30 days. Food preference aod egglaying preference experiments in the laboratory also confirm field observation. The paper also envisages the control of the pest by spraying 1% aldrin at-this vulnerable stage.