Broad leaf mustard(BLM)(Brassica juncea ***,Brassicaceae)is one of the most widely consumed vegetable crops in *** production of crop in open field is constrained by major pests like mustard aphid and flea *** study w...
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Broad leaf mustard(BLM)(Brassica juncea ***,Brassicaceae)is one of the most widely consumed vegetable crops in *** production of crop in open field is constrained by major pests like mustard aphid and flea *** study was aimed to determine the effects of pest exclusion net(PEN)on pest-infestation and yield of BLM cultivar“Khumal Broad Leaf”.The experiment was carried out in randomized complete block design(RCBD)with five treatments and four *** treatments included control(no mulch+no net+no pesticide spray),black plastic mulch only,reflective plastic mulch only,black plastic mulch+no net+pesticide spray,and PEN+black plastic mulch+no pesticide *** were analyzed with RSTAT software package and means were separated by Duncan’s multiple range test(DMRT)at 5%level of *** result revealed that crop under PEN had highest plant height(38.99 cm),lowest number of aphid(0-0.86 per plant),flea beetle(0-1.07 per plant)and highest total marketable yield(77.50 ton/ha)while control had lowest plant height(20.06 cm),highest number of aphid(maximum 2.49 per plant),flea beetle(maximum 2.00 per plant)and lowest total marketable yield(13.75 ton/ha).Economic analysis revealed highest benefit-cost ratio in PEN(9.90).This study indicates that the use of PEN protect BLM against aphid and flea beetle,increases yield and can be considered as a viable technology for BLM production by smallholder growers of Nepal.
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