EVALUATION OF STORAGE STRUCTURES AGAINST INFESTATION OF ANGOUMOIS GRAIN MOTH, SITOTROGA CEREALELLA (OLIVIER) IN STORED PADDY

摘要

Storage structures used in Nagaland were evaluated against infestation of paddy moth. Results of pooled data of two years (1998-2000) study revealed the lowest incidence of S. cerealella (Olivier) was recorded in Ahning with Tsakvong (1 %, 2.83 %) with moisture content 17.4 % and 16.3 % during 3 and 6 months of storage. The highest infestation was indicated in Gunny bag (2.83 %, 6.17 %) with moisture content 17.4 % and 16.8 % during the same periods. The highest average percent germination was observed in Mer storage (93 %) with moisture content 18.54 % followed by Ahning with Tsakvong (96 %) and Telha ki (89 %) with moisture contents of 17.3 % and 16.5 % respectively at the 3 and 6 months of storage time. Analysis of Co-relation coefficient (r) andLinear regression co-efficient (b) of percent germination with percent infestation of S. cerealella indicated highly negative significance after 6 months of storage.