Synthesis of bicyclic [1] and tricyclic [2] terpenoid lactones and the preliminary results of biological tests for their feeding deterrent activity [3] previously were presented. The tests, which were carried out on three storage pest insects: the grain weevil (Sitophilus granarius L.), the confused flour beetle (Tribolium confusum Duv.) and the khapra beetle (Trogoderma granarium Ev.), showed ...

The insect cuticle is covered by a thin layer of hydrocarbons not only preventing desiccation but also playing an important role in the sexual communication of several species. In the pteromalid wasp Lariophagus distinguendus, a parasitoid of grain infesting beetles, female cuticular hydrocarbons (CHCs) elicit male courtship behaviour. We analyzed the CHC profiles of male and female L. distingu...

The potential of a dry powder co-formulant, kaolin, to improve the control of storage beetles by the entomopathogenic fungus Beauveria bassiana, isolate IMI389521, was investigated. The response of Oryzaephilus surinamensis adults to the fungus when applied to wheat at 1 × 10(10) conidia per kg with and without kaolin at 1.74 g per kg wheat was assessed. Addition of kaolin increased control fro...

Amaç: Depolanmış ürünlerde ürünün kalitesini olumsuz etkileyen ve ürün kayıpların yol açan zararlı türlerin bunların önemlerinin sürvey çalışmalarıyla ortaya konulması bu çalışmanın amacıdır. Bu çalışmada Mersin İli’nde (Tarsus Akdeniz ilçeleri) farklı depolama yöntemleri (adi depolar silolar) uygulanan buğday mısır ürünlerinde belirlenmesi, amacıyla yapılmıştır. Materyal Yöntem: Örneklemeler, ...

The study was conducted to determine the insecticidal and behavioral effect of essential oils (EOs) extracted from three lavender cultivars, Hemus, Raya Yubileina, against adult stage Sitophilus granarius (L., 1758) (Coleoptera: Curculionidae) under laboratory conditions. contact, fumigant repellent effects plant EOs were investigated possible germination inhibitory on wheat evaluated. samples ...

The granary weevil, Sitophilus granarius (L.), is considered a serious pest in stored grain worldwide. As residual-based protection possibilities become scarcer, the development of eco-friendly control technologies that can be implemented practice becoming urgent. In this spirit, our objective was to assess effectiveness different levels atmospheric cooling against S. under laboratory condition...