
TY  - JOUR
A1  - Russell, GB 
A1  - Fenemore, PG 
A1  - Singh, P 
T1  - Insect-Control Chemicals from Plants. Nagilactone C, A Toxic Substance from the Leaves of Podocarpus Nivalis and P. Hallii
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1972
VL  - 25
IS  - 5
SP  - 1025
EP  - 1030
KW  - 
UR  - https://doi.org/10.1071/BI9721025 
N2  - Feeding tests showed that the powdered dried leaves and leaf extract of P. nivalis Hook and P. hallii Kirk are toxic to housefly larvae when incorporated into a milk diet. An active toxic ingredient has been isolated and identified as the known norditerpene lactone, nagilactone C. Nagilactone Cat 50 p.p.m. in a defined medium was toxic to housefly larvae. At lower concentrations it inhibited larval growth, maturation to pupae, and emergence of adults. Nagilactone C was not toxic to 3-4-day·old housefly larvae or to 2-3 day old adults when applied topically at the rate of 5 p.g per insect. 
ER  -

