author(s)
Rudra N Borkakati, DK Saikia and Daizy Sarma

abstract
Field experiments were conducted during 2015-16 and 2016-17 to study the impact of habitat manipulation on the incidence of major pests of cabbage and their natural enemies revealed that out of four modules, T₁ module (Cabbage intercropped with cowpea and mustard as border crop) was found to be the best in reducing the larval population of Plutella xylostella (1.89 / plant), Pieris canidia (2.82/plant), Agrotis ipsilon (1.26 /plant) and Brevicoryne brassicae (2.03 aphid/leaves). The highest numbers of Coccinellid predator (1.81/ leaves) with highest yield of (17872 kg/ha) and highest cost benefit ratio (1: 4.60) also recorded from the same module. Thus cabbage intercropped with cowpea and mustard as border crop could be adopted to get rid of key pests of cabbage.