Page 379 - Applied Pharmacognosy

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5. Methods of Controlling Insects in Crude Vegetable Drugs

i. Heat treatment.
ii. Fumigation using volatile insecticidal agents in closed area.
iii.Liming.
iv.Lowtemperaturestorage.
v.Frequentexposuretoalternateperiodsoflow&

hightemperaturestorage.
 It is moreeffective for killing insects than a

prolongedperiodoflowtemperatureexposure.