2007•Unpublished venueRequires access
Effect of Extracts from Dodonaea viscosa Seed on Feeding and Growth and Development of Pieris rapae L.
Yang Mei-lin
Open publisher page 1 citations
Abstract
Antifeeding,inhibition of growth and development on 4th instar larvae of Pieris rapae were determined.The results showed that ethanol extracts had evidenced antifeeding activity against 4th instar larvae of Pieris rapae.the AFC50 of complete antifeeding activity were 742.14 mg/L,1 099.93 mg/L and the AFC50 of selective antifeeding activity were 1 081.15 mg/L,1 553.83 mg/L in 24 hour and 48 hour for ethanol extracts from seed of Dodonaea viscose.Ethanol extracts also had strong effect on growth and development of Pieris rapae L.body weight and pipation rategain of the larvae were reduced,and growth inhibition was increased.The higher the concentration of the extracts was,the more severe the effects on the pest were.When treated with concentration of 5 000 mg/L,growth inhibition rate was more than 100%,pupation rate was 13.33%.