Studies On The Effect Of Intercropping And Application Of Livestock Manure On The Infestation And Damage Of Kale (brassica Oleracea L. Var Acephala) By Diamondback Moth Plutella Xylostella (lepidoptera Plutelliddae) In A Bio-

Kale (Brassica oleracea var. acephala) is an important source of income to many small-scalernfarmers in Ethiopia and is a major dietary component for many Ethiopians. The production of kalernis, however, constrained by several pests among which diamondback moth (Plutella xylostella) isrnthe major insect pest. Control of diamondback moth has mainly been by pesticides, which hasrnresulted in pest resistance and pollution of the environment. This study attempts to look intornalternative environmentally friendly ways of controlling diamondback moth larvae on kale inrnselected site in Ethiopia.rnField studies and Screen house experiments were conducted to determine the effect ofrnintercropping and livestock manure on the diamondback moth larval density and damage on kale.rnParasitoid species and percentage parasitism are also determined. Intercropping kale and onionrn(Allium cepa) both with and without manure significantly reduced (P

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