The complex and efficient sex pheromone communication system in insects is essential for reproduction reproductive isolation of species. In moths, starts with male attraction to compounds emitted by females; only a few species act the reverse. However, how pheromones that are both sexes co-regulate coordinate mate finding mating remains unknown. Here, we identified female Eastern Grass Veneer moth, Agriphila aeneociliella (Lepidoptera: Crambidae), demonstrated their efficiency manipulating...

Abstract BACKGROUND Some defects, such as the short persistence and lower release stability of methyl salicylate (MeSA), must be resolved before efficient field application. To enhance utilization efficacy MeSA, a slow‐release MeSA alginate bead was designed tested to measure its rate in laboratory environment obtain insights into ecological effects wheat fields. RESULTS In tests, both 2.5 10 mL formulations beads (hereafter referred 10) stably continuously for at least 15 days, whereas pure...

Pheromone cues released from hosts or prey are of crucial importance to natural enemies for and habitat location. The use herbivorous insect sex pheromones has long been considered as a potential pest control alternative that is non-toxic harmless beneficials. We hypothesized Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), major predatory coccinellid beetle the devastating migratory Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), could perceive pheromone S. locate its...

Sitobion avenae (Fabricius) is a major insect pest of wheat worldwide that reduces crop yield and quality annually. Few germplasm resources with resistant genes to aphids have been identified characterized. Here, octoploid Trititrigia, species used in distant hybridization breeding, was found be repellent S. after 2 year field investigations associated physiological behavioral assays. Linalool monoterpene accumulate dominantly plants response infestation. We cloned the resistance gene OtLIS...

It is well known that plant elicitors can induce defense against pests. The herbivore-induced volatile (HIPV) methyl salicylate (MeSA), as a signaling hormone involved in pathogen defense, used to recruit natural enemies protect wheat and other crops. However, the mechanism remains largely unknown. Here, headspace volatiles of plants were collected analyzed by gas chromatography-mass spectrometry (GC-MS), chromatography with electroantennographic detection (GC-EAD) principal component...

Abstract BACKGROUND Aphids are common insect pests that feed on and excrete feces/honeydew storage vegetables, especially in the temperate region of northern hemisphere. The honeydew aphids is an excellent growth medium for microorganisms. To explore effects aphid infestation risk microbial contamination food safety: (i) bacterial diversity community were investigated; (ii) nutritional components cabbage analyzed; (iii) safety was evaluated. RESULTS results showed dominant bacteria Chinese...

We analyzed the resistance of wheat germplasm resources with different genetic backgrounds to aphids by fuzzy recognition technique in field and electrical penetration graph (EPG) laboratory, aim find new aphid-resistance resource. Results from a two-year experiment showed that most trititrigia had medium low resistance, while triticale were susceptible. The 21 (medium resistance), 22 (low 31 susceptable) 32 stable traits diffe-rent levels selected for feeding behavior analysis Sitobion...

Abstract The Eastern Grass‐veneer Agriphila aeneociliella (Eversmann) (Lepidoptera: Crambidae) is a serious stem‐feeding pest of wheat crops that has become established in China recent years. A better understanding the mating strategy and reproductive performance A. could improve integrated management programmes against this newly species by disturbing its behaviour reducing reproduction potential. Based on ethological biological approaches, performances were investigated. Unlike common...

Moths use pheromones to ensure intraspecific communication. Nevertheless, few studies are focused on both intra- and intersexual communication based pheromone recognition. Pheromone-binding proteins (PBPs) generally believed pivotal for male moths in recognizing female pheromones. Our research revealed that PBP1 of

As small ectotherms, insects need to cope with the challenges of winter cold by regulating water content through transport. Aquaporins (AQPs) are key players enhance resistance mediating essential homeostatic processes in many animals but remain poorly characterized insects. Agriphila aeneociliella is a newly discovered wheat pest China, and its early-stage larvae have strong tolerance low temperature stress. Six AQP genes were identified, which belong five subfamilies (RPIP, Eglp, AQP12L,...

Abstract Background Terpenoid volatiles play an important role directly or indirectly in the plant defense mechanisms against herbivores, including gramineous crops such as transgenic rice and corn. The conventional varieties of wheat are cereal that lack aphid-resistant genes. Therefore, it is necessary to seek genes by screening for potential terpenoid synthase germplasm resources. Results result showed aphid-damaged Octoploid Tirtitrigia emitted a higher amount S-linalool, ent-kaurene,...

Abstract Background Terpenoid volatiles play an important role in direct and indirect plant defense responses against herbivores, including gramineous crops such as transgenic rice corn. The conventional varieties of wheat, cereal crop, lack aphid-resistant genes. It is therefore, necessary to seek genes by screening for potential terpenoid synthase wheat germplasm resources. Results result showed that aphid-damaged Octoploid Tirtitrigia emitted a higher amount S-linalool, ent-kaurene,...