Assessment of two natural marine toxins [Microcystis Aeruginosa and Parasicyonis Actinostoloides] for the control of some medical and agriculture insects with reference to the action on mice

ABSTRACT

This work described the insecticidal potentiality from Microcystis aeruginosa [cyanobacteria] and Parasicyonis actinostoloides [Sea anemone] water extracts against third larval instar of medical insects [Musca domestics and Culex pipiens] and fourth larval instar of agriculture insects [Spodoptera littoralis and Agrotis ipsilon]. The LD50s of M. aeruginosa extract were 1.94, 2.33, 7.59 and 9.10 mg/ml for M. Domestica, C. pipiens, S. Littoralis and A. Ipsilon, respectively. However, LD50s of P. actinostoloides extract were 19.28, 24.7, 27.3 and 29.4 mg/ml for M. domestics, C. pipiens, S. littoralis and A. ipsilon, respectively. The aqueous extracts of M. aeruginosa and P. actinostoloides had no acute or chronic marked effect on mice as serum acetyl cholinesterase and gave more or less nearly the same level of AchE activity at the end of decapitation periods