and Affect the Growth of the Invasive Plant and Its Defense Against the Specialist Herbivore .

Exotic plants can selectively recruit beneficial microorganisms, such as arbuscular mycorrhizal fungi (AMFs) and spp., during their invasion process to enhance growth and competitiveness by improving nutrient absorption and strengthening defense capabilities against herbivores. However, research in the context of invasive plants remains limited.

Arbuscular mycorrhizal fungus and Pseudomonas bacteria affect tomato response to Tuta absoluta (Lepidoptera: Gelechiidae) herbivory.

Tuta absoluta (Lepidoptera: Gelechiidae) is one of the most significant invasive and destructive pests worldwide, causing serious economic losses to the tomato industry. Rhizosphere microorganism, such as arbuscular mycorrhizal fungi (AMF) and Pseudomonas bacteria, can interact with plants individually or collectively to improve plant growth and resistance to pests and disease. However, the effects of AMF, Pseudomonas, and their interactions on plant responses to insect herbivores remain unclear.

Screening and functional validation of the core detoxification genes conferring broad-spectrum response to insecticides in Spodoptera frugiperda.

Background: Fall armyworm, Spodoptera frugiperda, a formidable agricultural pest, has developed resistance to various synthetic insecticides. However, how S. frugiperda utilizes its limited energy and resources to deal with various insecticides remains largely unexplored.

Combined Activity of Saponin B Isolated from Seeds with Pesticide Azadirachtin against the Pest .

Azadirachtin is regarded as one of the best botanical pesticides due to its broad spectrum of insecticides and low interference with natural enemies. To enhance the effect of azadirachtin and slow down the generation of resistance, the combined activity was studied. Here, we found that saponin B (DVSB) isolated from the seeds of has good combined activity with the azadirachtin.

Genome-Wide Scanning Loci and Differentially Expressed Gene Analysis Unveils the Molecular Mechanism of Chlorantraniliprole Resistance in .

Chlorantraniliprole has been widely used to control, but it has led to the development of chlorantraniliprole resistance. Multiomics analysis of strains with two extreme traits helps to elucidate the complex mechanisms involved. Herein, following genome resequencing and application of the Euclidean distance algorithm, 550 genes within a 16.

Insecticide Susceptibility and Detoxification Enzyme Activity of under Three Habitat Conditions.

is a highly destructive and invasive agricultural pest that has developed resistance to a variety of insecticide classes. Different planting structures and insecticide use frequency can directly affect the resistance development of . In this study, the susceptibility of three field strains of , collected over one year (April to November) from three habitat conditions (facility agriculture area, FA; open field crop area, OF; agroforestry intersection area, AI), to spinetoram, spinosad, emamectin benzoate, chlorfenapyr, acetamiprid, and imidacloprid were monitored and compared.

Effects of and on the competitive growth of .

Beneficial microorganisms play a pivotal role in the invasion process of exotic plants, including arbuscular mycorrhizal fungi (AMF) and . However, limited research exists on the synergistic influence of AMF and on the competition between both invasive and native plants. In this study, pot cultures of monoculture, monoculture, and and mixture were used to investigate the effects of dominant AMF (, SC) and (BC), and the co-inoculation of BC and SC on the competitive growth of .

Tracking Adaptive Pathways of Invasive Insects: Novel Insight from Genomics.

Despite the huge human and economic costs of invasive insects, which are the main group of invasive species, their environmental impacts through various mechanisms remain inadequately explained in databases and much of the invasion biology literature. High-throughput sequencing technology, especially whole-genome sequencing, has been used as a powerful method to study the mechanisms through which insects achieve invasion. In this study, we reviewed whole-genome sequencing-based advances in revealing several important invasion mechanisms of invasive insects, including (1) the rapid genetic variation and evolution of invasive populations, (2) invasion history and dispersal paths, (3) rapid adaptation to different host plant ranges, (4) strong environmental adaptation, (5) the development of insecticide resistance, and (6) the synergistic damage caused by invasive insects and endosymbiotic bacteria.

Nutritional and Feeding Adaptability of Larvae to Different Cultivars of Soybean, ().

The larvae of , a special species of Chinese edible insect, are of great nutritional, medicinal and economic value to humans. This study aimed to clarify the effect of different soybean varieties (Guandou-3 (G3), Ruidou-1 (R1), September cold (SC)) on the nutritional quality and feeding selection behavior of larvae. The results showed that soybean isoleucine (Ile) and phenylalanine (Phe) were positively correlated with larval host selection (HS) and protein content.

() regulates the synthesis of linolelaidic acid and tricosanoic acid, and alters the key metabolites in diapause .

Good exploitation and utilization of edible insects can effectively alleviate global food security crisis in years. The study on diapause larvae of (DLC) was conducted to explore how gut microbiota regulate the nutrients synthesis and metabolism of edible insects. The results showed that maintained a total and stable nutrition levels at early phase of diapause.

Acetylcholinesterase inhibitory activity of sesquiterpenoids isolated from .

Plant-derived natural products are important resources for pesticide discovery. Acetylcholinesterase (AChE) is a well-validated pesticide target, and inhibiting AChE proves fatal for insects. Recent studies have shown that the potential of various sesquiterpenoids as AChE inhibitors.

Effects of Elevated CO Concentration on Host Adaptability and Chlorantraniliprole Susceptibility in .

Elevated atmospheric carbon dioxide concentrations (eCO) can affect both herbivorous insects and their host plants. The fall armyworm (FAW), is a highly polyphagous agricultural pest that may attack more than 350 host plant species and has developed resistance to both conventional and novel-action insecticides. However, the effects of eCO on host adaptability and insecticide resistance of FAW are unclear.

Effect of arbuscular mycorrhizal fungi on the responses of to herbivory.

The invasive weed can form a positive symbiotic relationship with native arbuscular mycorrhizal fungi (AMF) to promote its invasion ability. However, the function of AMF during the feeding of in was poorly understand. This study aimed to investigate the effects of two dominant AMF () on in response to the feeding of the generalist herbivore .

Rhizospheric -Facilitated Effects on the Growth and Competitive Ability of the Invasive Plant .

The rhizospheric microbial community affects the population establishment of invasive plants in introduced areas, among which has numerous functions in promoting plant growth. This study isolated and enriched the community in the rhizospheric soil of the invasive plant and the native accompanying plant . The effects of these rhizospheric communities on the growth and competition of and were evaluated in pot experiments.

Genomic and Transcriptomic Analysis Reveals Cuticular Protein Genes Responding to Different Insecticides in Fall Armyworm .

The fall armyworm (FAW), , is a serious pest of crucial crops causing great threats to the food security of the world. It has evolved resistance to various insecticides, while the underlying molecular mechanisms remain largely unknown. Cuticular proteins (CPs), as primary components in cuticle, play an important role in insects' protection against environmental stresses.

Effects of elevated CO on activities of protective and detoxifying enzymes in Frankliniella occidentalis and F. intonsa under spinetoram stress.

Background: Elevated CO can directly affect the toxicity of insecticides to insects and the physiological response of insects to insecticides. Frankliniella occidentalis and F. intonsa are highly destructive pests that target horticultural crops.

Olfactory perception of herbicide butachlor by GOBP2 elicits ecdysone biosynthesis and detoxification enzyme responsible for chlorpyrifos tolerance in Spodoptera litura.

Insecticide resistance is one of the major obstacles for controlling agricultural pests. There have been a lot of studies on insecticides stimulating the development of insect resistance. Herbicides account for the largest sector in the agrochemical market and are often co-applied with insecticides to control insect pests and weeds in the same cropland ecosystem.

Genomic and transcriptomic analysis unveils population evolution and development of pesticide resistance in fall armyworm Spodoptera frugiperda.

The fall armyworm (FAW), Spodoptera frugiperda, is a destructive pest native to America and has recently become an invasive insect pest in China. Because of its rapid spread and great risks in China, understanding of FAW genetic background and pesticide resistance is urgent and essential to develop effective management strategies. Here, we assembled a chromosome-level genome of a male FAW (SFynMstLFR) and compared re-sequencing results of the populations from America, Africa, and China.

Effect of elevated CO on the interaction between invasive thrips, Frankliniella occidentalis, and its host kidney bean, Phaseolus vulgaris.

Background: Elevated CO can alter the leaf damage caused by insect herbivores. Frankliniella occidentalis (Pergande) is highly destructive invasive pest of crop production worldwide. To investigate how elevated CO affects F.

The Influence of Elevated CO2 Concentration on the Fitness Traits of Frankliniella occidentalis and Frankliniella intonsa (Thysanoptera: Thripidae).

Development and fecundity were investigated in an invasive alien thrips species, Frankliniella occidentalis (Pergande), and a related native species, Frankliniella intonsa (Trybom), under high CO2 concentration. Results show that the two thrips species reacted differently toward elevated CO2 concentration. Developmental duration decreased significantly (11.

[Root growth characteristics and competitive effects of Ageratina adenophora and four functional type herbaceous plants].

A field experiment was conducted to explore the root competitive effects of Ageratina adenophora and Setaria sphacelata, S. yunnanensis, Eupatorium fortunei, Chenopodium serotinum in monoculture and mixture, and the relative competitive abilities were evaluated. The results showed that the root length, superficial area and volume of A.