Table 5. Insecticidal activities of PP derivatives 4a, 9a, 10a, and 13d against insect pests affecting public health.

Compound	Abnormality at 100 ppm
	A. albopictus (Purchased)a)
	30 min ATb)	24 hr ATb)
4a	100	100
9a	20	50
10a	100	40
13d	100	0
PP-A	100	0

^a) The insects purchased were used in insecticide tests. ^b) AT: after treatment