Abstract The fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera, Noctuidae), is a polyphagous and highly destructive agricultural pest that invaded mainland China in 2019. To facilitate research on this pest, it important to formulate formalize suitable artificial diet based local ingredients. In study, the life histories of armyworm reared corn leaves four diets were recorded. used were: soybean sucrose-based (SS), wheat germ-based (SW), chickpea (CPW), soybean-based (CNS)....

The blue gum chalcid, Leptocybe invasa Fisher & La Salle, invaded China in 2007 and has subsequently caused substantial damage to eucalyptus trees. In the current paper, we investigated susceptibility of 10 Eucalyptus spp. Eucahetus dunnii L. field, determined density galls as well gall volume on these tree species, monitored population dynamics wasps Hainan Guangdong provinces China. order was urophylla×Eucalyptus camaldulensis>E. urophylla (coppices)>Eucalyptus exserta> grandis×E. Hainan,...

Excessive insecticide applications are commonly used to manage Bactrocera cucurbitae Coquillett in China. Resistance status, resistance development trends, and patterns of cross-resistance insecticides B. were investigated. Among 21 populations from Hainan Island, two expressed high beta-cypermethrin; seven, eight, ten intermediate spinosad, avermectin, beta-cypermethrin, respectively; four, six, one, five, four low trichlorfon, fipronil, the remaining exhibited either minor or remained...

Abstract To control coconut leaf beetle, Brontispa longissima (Gestro), the pupal parasitoid Tetrastichus brontispae Ferrière was imported from Taiwan and its biology studied in quarantine Hainan, China. The development includes an egg, three larval instars stages. Its developmental time egg to adult 19.5±0.5 days under conditions of 24±2°C 75±5% relative humidity (RH). Temperature had no effect on sex ratio offspring, but significantly affected parasitism rate reproduction. rates were...

Journal Article Effect of Temperature on the Population Growth Rhynchophorus ferrugineus (Coleoptera: Curculionidae) Sugarcane Get access Lei Li, Li 1Coconut Research Institute, Chinese Academy Tropical Agricultural Sciences, Wenchang Hainan 571339, China.2Environment and Plant Protection Department, University, Danzhou 571737, China. Search for other works by this author on: Oxford Academic PubMed Google Scholar Wei-Quan Qin, Qin 3 3Corresponding authors, e-mail: qwq268@sohu.com...

Antennal and abdominal transcriptomes of males females the coconut hispine beetle Brontispa longissima were sequenced to identify compare expression patterns genes involved in odorant reception detection. Representative proteins from chemosensory gene families likely essential for insect olfaction identified. These include 48 receptors (ORs), 19 ionotropic (IRs), 4 sensory neuron membrane (SNMPs), 34 binding (OBPs) 16 (CSPs). Phylogenetic analysis revealed evolutionary relationship these...

Laboratory studies were conducted to determine the effect of temperature and cold storage on performance Tetrastichus brontispae (Ferriere) (Hymenoptera: Eulophidae), one major endoparasitoids against coconut hispine beetle, Brontispa longissima (Gestro) (Coleptera: Chrysomelidae). The results revealed that T. could successfully parasitize host pupae under all seven tested temperatures, but no adult emergence was observed at 32°C. It also temperatures between 24 26°C appeared be optimum for...

To present the susceptibility of Brontispa longissima (Gestro) (Coleoptera: Hispidae) to insecticides, 22 populations were collected in Southeast Asia from 2007 2010. Moreover, laboratory susceptible strain was maintained. The results demonstrated that lethal concentration50 value avermectin, β-cypermethrin, and acetamiprid 0.034, 0.024, 1.843 mg liter−1, respectively. Compared with strain, 10 developed a medium level resistance avermectin (10.8-fold < ratio [RR] 34.7-fold) 11 had low or...

Olfaction is crucial for insects' survival because it enables them to recognize various environmental information.It primarily mediated by a large family of chemoreceptors, including olfactory receptors (ORs), gustatory (GRs), and ionotropic (IRs).Here, we assembled the transcriptome economically important pest palms, Rhynchophorus ferrugineus, reveal its chemoreceptor gene repertoire.About 8.08 Gbp data were generated using HiSeq platform their assembly led total 24,439 unigenes.Among...

The solanum fruit fly Bactrocera latifrons (Diptera: Tephritidae) is an invasive alien insect that causes huge economic losses to pepper and other solanaceous plant industries. It mainly distributed in South Southeast Asia, SW Europe, Western USA, some African countries. However, the potential global geographical distribution of B. unknown. Therefore, this study, based on current (1981–2010) future (2040–2059) climatic scenarios determined using CNRM-CM5, Access1.0, GFDL-ESM-2M, NorESM1-M...

Male Dorysthenes granulosus (Thomson, 1860) (Coleoptera: Cerambycidae: Prioninae) were caught in traps baited with racemic 3,5-dimethyldodecanoic acid (prionic acid) during field screening trials China that tested known cerambycid pheromones. This species is an important pest of sugarcane (Saccharum officinarum L.). In follow-up dose-response trials, plastic sachets loaded 1 or 0.1 mg prionic equally attractive to male beetles, whereas lower doses no better than controls. Two commercial...

Spodoptera frugiperda is a highly destructive and polyphagous pest that causes severe damage to various crops, especially maize. The wide use of chemical insecticides control S. results in resistance against commonly used chemicals resistant mutations will expand populations accompanied by spread vulnerable areas. Consequently, more effective friendly strategies must be explored minimize losses caused frugiperda. Entomopathogenic nematodes (EPN) are good candidates for the biological...

Observations on the development, survivorship and reproduction of Tetranychus piercei McGregor reared fresh banana leaves were conducted at 16, 20, 24, 28, 32 36°C. The developmental time from egg to adult varied 7.2 d 32°C 33.1 16°C. threshold temperatures egg, larva, protonymph, deutonymph, preoviposition a whole generation 11.2, 9.8, 11.9, 12.5, 13.3 10.7°C, respectively. effective accumulated 72.3, 33.6, 22.2, 27.8, 17.7 163.6 day-degrees, Within range 16 36°C, relationships between...

Figs (Ficus, Moraceae) and their associated fig waSPS (Hymenoptera, Chalcidoidea Agaonidae) have attracted much attention been used as a model system for many studies. Fig belonging to the genus Philotrypesis are very common in most figs but taxonomy, ecology biology currently poorly explored. A previous study on African showed that host association is phylogenetically conserved at subsection level. We reconstructed molecular phylogeny with extended sampling from seven sections of figs. Our...

To determine population genomic structure through high-throughput sequencing techniques has revolutionized research on non-model organisms. The coconut leaf beetle, Brontispa longissima (Gestro), is a widely distributed pest in Southern China. Here, we used restriction site-associated DNA (RAD) genotyping to assess the invasion pathway by detecting and estimating degree of genetic differentiation among 51 B. accessions collected from A total 10,127 SNPs were obtained, screened single...

Opisina arenosella has been an outbreak pest of coconut trees in southern China since 2013. To develop efficient control methods for this invasive pest, adequate rearing protocols are desirable. In study, orthogonal array artificial diets with 11 factors at 3 levels was deployed both 2nd–4th and 5th–6th instar larvae O. arenosella. Biological parameters including survival time larvae, development from larva to pupa, pupation rate, emergence pupal weight were monitored reveal the most...