标题:Molluscicidal toxicity of abamectin against Eobania vermiculata and Theba pisana in vitro and the estimation of GABA-Transaminase activity by HPLC. Journal of Biopesticides
摘要:The molluscicidal toxicity of abamectin against two economic snails namely, the
brawn garden snail (Eobania vermiculata) and the white garden snail (Theba pisana),
was established under in vivo conditions. Abamectin was used by the topical
application technique. The mortality of snails was recorded after 24 and 72 hrs of
exposure. The obtained results revealed that E. vermiculata was more resistant to
abamectin than T. pisana. The LD50 for E. vermiculata after 24 and 72 hrs of exposure
were 0.379 & 0.250 μg/ gm b.w, respectively. Whereas the LD50 for T. pisana were
0.199 and 0.125 μg/ gm b.w after 24 and 72 hrs of exposure, consecutively. On the
other hand, the impact of abamectin upon GABA- Transaminase concentration was
estimated in both snails. For the first time, the activity of GABA- T was estimated by
HPLC. Abamectin has been assessed with 1/2, 1/5 and 1/10 of LD50 for 24 and 72 hrs
of exposure. The most effective dose on GABA- T activity was 1/2 of LD50 after 24
and 72hrs of application for both snails.