1. The insecticidal composition of the present invention has an immediate acaricidal effect on chicken mites (mites, red mites) within 24 hours and shows a sustained acaricidal effect for at least one month.

2. Acaricidal activity of methanol extracts from 16 mangrove plants against Panonychus citri McGregor was determined.

3. Some present compounds have definite insecticidal activity and acaricidal activity and can be used to prevent and treat pests and acarids of crops.

4. -1 Aphicide Substances 0.000 title claims description 193 238000000034 method Methods 0.000 title claims description 69 230000000895 acaricidal Effects 0.000 title claims description 7