Parasitoids locate inconspicuous hosts in a heterogeneous habitat using plant volatiles, some of which are induced by the hosts. Hyposoter horticola Gravenhost (Hymenoptera: Ichneumonidae) is a parasitoid of the Glanville fritillary butterfly Melitaea cinxia L. (Lepidoptera: Nymphalidae). Melitaea cinxia lays eggs in clusters on leaves of Plantago lanceolata L. (Lamiales: Plantaginaceae) and Ve...

Abstract The bug Orius similis Zheng is a native generalist predator of insect pests in southern China. fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), notorious defoliator that now an economically important pest throughout To investigate the ability O. to control FAW, we evaluated predatory capacity, behavior, and functional response with respect FAW their olfactory response. Both fem...

Abstract Argentine stem weevil adults (ASW, Listronotus bonariensis ) feed on the leaves of agricultural grasses and their larvae mine pseudostem, causing extensive damage that can result in plant death. Plants emit volatiles serve as signals to host-searching insects these odours be altered by both herbivory fungal endophyte-infection. This study investigated whether ASW utilise olfaction iden...

Abstract The generalist predator Nesidiocoris tenuis , an effective biological control agent of numerous pests the tomato crops, can also trigger plant defence mechanisms (direct and indirect) due to its phytophagous behaviour. In southern Europe, is frequently released in greenhouses invasive pest Tuta absoluta sometimes combined with another biocontrol agent, egg parasitoid Trichogramma achae...

Abstract Wheat stem sawfly, [Cephus cinctus (Hymenoptera: Cephidae)], females display complex behaviors for host selection and oviposition. Susceptible hollow wheat (Triticum aestivum L.) cultivars release a greater amount of attractive compound, (Z)-3-hexenyl acetate receive number eggs compared to resistant solid cultivars. However, barley (Hordeum vulgare is becoming more common C. in Montan...

In various orchard fruit trees, thinning of blossoms and fruits is important to increase size quality promote a new bloom in the following season. Several chemical agents are currently commercially available, but they inconsistent produce side effects crop plants insect pollinators. Because environmental concerns, developing alternative eco-friendly necessary. We developed an formulation (BTF) ...

Insect herbivory activates plant defense mechanisms and releases a blend of herbivore-induced volatiles (HIPVs). These volatile compounds may be involved in plant-plant communication induce response undamaged plants. In this work, we investigated whether the exposure sweet pepper plants to HIPVs [ (Z) -3-hexenol, -3-hexenyl acetate, propanoate, butanoate, hexyl methyl salicylate jasmonate] immu...

Olive fly is the most dangerous pest in olive groves worldwide. Therefore the study of the most susceptible and resistant cultivars to olive fly can bring new information to diminish the olive flies harmful impacts. The main goal of the present study is to verify the olfactory response of olive fly to olive volatiles from five native Iranian cultivars (Fishomi, Mari, Rowghani, Shengeh, and Zard...

Abstract Tea black tussock moth, Dasychira baibarana (Matsumura) (Lepidoptera: Lymantriidae), is a devastating pest species of the tea plant in China. Here, we evaluated responses D. to volatiles using gas chromatography coupled electroantennographic detection (GC–EAD), eleclectroantennography (EAG), and Y-tube olfactometer. In total, 11 18 analyzed compounds elicited GC–EAD from test insects. ...