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Rice, Martin (1988-08-17)
AZADIRACHTIN is a terpinoid chemical !ound in Meliaceous trees (e.q. White Cedar) but especially concentrated in the seeds of the Neem tree (Azadirachta indica).
Rice, Martin (1986-08-20)
A very serious situation faces growers due to increasing insecticide resistance, the fall-off in development of new chemicals and the rising costs of insecticides from overseas.