Table 4: Result of partial budget analysis for the integrated management of haricot bean foliage beetle during 2012 and 2013 main cropping season.

Treatment Cost-benefit data
No12345678
Adj. yield (t ha-1) (yield x 0.9)Price (Birr t-1)Sale revenue (1x2)Total input cost (Birr ha-1)Marginal cost (Birr ha-1)Net profit (3-4) (Birr ha-1)Marginal benefit (Birr ha-1)Marginal rate of return (7/5) (%)

LPA1.276333.48020.0932.6402.07087.56261.31557.5
NPA0.646333.44071.0932.6402.03138.42312.2575.2
LPWI0.836333.45256.2530.60.04725.63899.5734.9
NPWI0.216333.41356.8530.60.0826.20.00.0

LPA = late planting with Apron star seed dressing; NPA = normal planting with Apron star seed dressing; LPWI = late planting without Apron star, and NPWI = normal planting without Apron star.