Effect of botanical insecticide Nimbecidine® on food consumption and egg hatchability of the terrestrial snail Monacha obstructa

Abstract

In the laboratory, a commercial neem-based insecticide-Nimbecidine ® -was evaluated as a potential pest management tool for the terrestrial snail, Monacha obstructa (PfeiVer, 1842) (Hygromiidae). EVects of diVerent concentrations of the botanical insecticide on food consumption and egg hatchability of the terrestrial snail were studied. Generally, food consumption of immature and adult snails decreased as the concentrations of Nimbecidine ® increased. At the highest concentration (10 ml/l), the snails avoided contacting with food completely. The food intake of immature individuals was signiWcantly (p < 0.05) more aVected by the Nimbecidine ® treatment (at 1.25 ml/l) than that of adults. LC 50 of Nimbecidine ® for the treated eggs was 2.18 ml/l, and eggs failed to hatch at concentration of 10 ml/l. Nimbecidine ® showed suYcient biological activity against the food consumption and eggs viability of M. obstructa, thus the preparation has a potential to protect Weld crops from this pest snails.

The effects of some bioinsecticides on Aphis fabae and Acyrthosiphon pisum (Hemiptera: Aphididae)

“…Neem ağacı (Azadirachta indica, Meliaceae)'ndan elde edilmiş olan Azadirachtin pek çok zararlı böceğe karşı öldürücü, beslenmeyi ve büyümeyi engelleyici olarak kullanılmaktadır (Charleston et al 2006;Göçmen et al 2007;Schneider et al 2017). Azadiracthin etkili maddeli preparatların yaprak bitleri başta olmak üzere bazı zararlıların popülasyonunu kontrol altında tutabildiği yapılan çalışmalarda bildirilmiştir (Shoaib et al 2010;El-Salam et al 2012;Bhardwaj & Ansari, 2015). Bu çalışmada da kullanılan Azadirachtin etkili maddeli (Nimbecidine) preparatın yaprak bitleri üzerinde yüksek lethal etki gösterebildiği saptanmıştır.…”

Development of an embryotoxicity test for Enchytraeus crypticus – The effect of Cd

“…In soil ecotoxicology with invertebrates, embryonic development tests are limited (Druart et al, 2010). A few studies were performed using the terrestrial slugs Deroceras reticulatum (Iglesias et al, 2002(Iglesias et al, , 2000 and snails Monacha obstructa (Shoaib et al, 2010) to assess embryotoxic effects of metals and pesticides and for Helix aspersa (syn. Cantareus aspersus) an embryotoxicity test has been proposed (Baurand et al, 2014;Druart et al, 2010).…”

Saponin Stabilization via Progressive Freeze Concentration and Sterilization Treatment

“…Moreover, it was also reported that plant metabolites were acknowledged as protection against snails [ 23 , 24 ]. More than 1500 species of plants had been evaluated for potential molluscicidal activity, and most of them are the family of Theaceae , Meliaceae , Apocynaceae , Euphorbiaceae , Leguminosae , Phytolaccaceae , Solanaceae, and Rutaceae [ 25 ].…”