Toxicity of crude black pepper (Piper nigrum) extract against 2-month old American cockroaches (Periplaneta americana)

• Main Author: Arambulo, Eric
• Format: text
• Language: English
• Published: Animo Repository 1993
• Subjects: Plants; Insecticidal; Pepper (Spice); Cockroaches; Pest control; Insecticides > Toxicology; Insecticidal plants; Black pepper (Spice)
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/1131
• Institution: De La Salle University

The toxicity of crude black pepper (Piper nigrum) extract in an acetone solvent to 2 -month old American cockroaches (Periplaneta americana) was determined by topical application.Percent mortality was noted to be directly proportional to crude black pepper extract concentraton. Crude black pepper extract was topically less toxic than malathion against 2 - month old American cockroach. The LC's for the crude black pepper extract obtained from the 50, 24, 48, and 72 hour concentration - mortality data were 29, 21, and 21 mg/ml. One Way Analysis of Variance showed insignificant difference in mortality at different time exposures to the crude black pepper extract.