Wei-Jian Wu

• Professor at South China Agricultural University

The cover image is based on the Research Article HCN‐induced embryo arrest: passion fruit as an ecological trap for fruit flies by Jing Yang et al., https://doi.org/10.1002/ps.7396 image

BACKGROUND Fruit flies are important economic pests of fruits, vegetables, and nuts all over the world. In this study, a permanent ecological trap, which was created by the ovicidal effect of phytogenic hydrogen cyanide (HCN) liberated from passion fruits due to oviposition by fruit flies and can be used in the pest management, were determined. RE...

The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is a key vector of the causal agents of Huanglongbing (HLB), a devastating disease affecting citrus almost worldwide. Nicotiana tabacum L. is an important commercial crop in China. Field observations suggested that D. citri adults die on N. tabacum leaves when grown nearby c...

Resistant crop varieties can usually decrease the population density of insect pests; however, they can also easily cause the occurrence of highly virulent pest populations when repeatedly grown. Whether herbivorous insects feeding intermittently on a susceptible variety affects their subsequent virulence has rarely been investigated. In this paper...

The brown planthopper (BPH), Nilaparvata lugens, is an important pest that affects rice (Oryza sativa) production in Asia. The flavone tricin (5,7,4′-trihydroxy-3′,5′-dimethoxy flavone) is a valuable secondary metabolite commonly found in rice plants that can defend rice plants against infestation by BPH. BPH damage can reduce the metabolic level o...

The brown planthopper (BPH), Nilaparvata lugens , is an important pest that affects rice ( Oryza sativa ) production in Asia. The flavone tricin (5,7,4ʹ-trihydroxy-3ʹ,5ʹ-dimethoxy flavone) is a valuable secondary metabolite commonly found in rice plants that can defend rice plants against infestation by BPH. BPH damage can reduce the metabolic leve...

Euplatypus parallelus (F.) (Coleoptera: Curculionidea) is the most destructive cosmopolitan insect pest of the Platypodinae. Pheromone-based luring agents are used currently in controlling bark beetle. Antennae are the primary insect organs sensing volatiles of host trees and pheromones of pioneer males. We studied the external morphology of antenn...

Euplatypus parallelus (F.) (Coleoptera: Curculionidae) is one of the most invasive species of all the Platypodinae. It penetrates the xylem and oviposits in its host trees thereby weakening the trunk causing them to break under extreme conditions. Since the beetle has evolved effective drilling mouthparts enough to make wood tunnels, we used a fiel...

The rice leaf folder, Cnaphalocrocis medinalis Guenee (Lepidoptera: Pyralidae), occurs throughout southeast and northeast Asia, and has a broad host range including graminaceous crops and weeds. Unraveling the relationship between adult oviposition preference and offspring performance is central to understanding the evolution of plant–insect intera...

Cyrtorhinus lividipennis Reuter (Hemiptera: Miridae: Orthotylinae), including nymphs and adults, are one of the dominant predators and have a significant role in the biological control of leafhoppers and planthoppers in irrigated rice. In this study, we investigated the antennal morphology, structure and sensilla distribution of C. lividipennis in...

Informations in differentiating Cyrtorhinus lividipennis and Tyttus chinensis. (DOCX)

Flower scents are known as synomones between flowering plants and pollinators, but very little is known about the synomone involving omnivorous predator. Campylomma chinensis Schuh (Hemiptera: Miridae) is an omnivorous predator that feeds on both small soft-bodied arthropods and plant hosts including purple trailing lantana Lantana montevidensis (S...

A broad-specificity, single-chain antigen-binding fragment (scFab) for the detection of O,O-diethyl organophosphorus pesticides (DPPs) was produced and characterized. The recombinant plasmid encoding an Fab with broad specificity towards a specific class of DPPs was used as a template for amplification of the antibody heavy (Fd) and light (κ) chain...

Tetrastichus howardi (Olliff) (Hymenoptera: Eulophidae), a pupal parasitoid of a great number of Lepidoptera pests, has a great potential for biological control. To investigate the olfactory system of this parasitoid, we examined the morphology and ultrastructure of the antennal sensilla of both male and female T. howardi using scanning and transmi...

Summary We investigated the external morphology, eye size, facet size, and numbers of ommatidia and ommatrichia of the compound eyes of Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae), Bactrocera tau (Walker) and Bactrocera dorsalis (Hendel) using light and scanning electron microscopy. There significant differences were found between fem...

In recent years, light traps with light-emitting diodes (LEDs) have been widely used in integrated pest management. The spiralling whitefly, Aleurodicus dispersus Russell, a highly invasive pest which causes heavy damage to fruit trees and ornamental plants, exhibits positive phototaxis, and light trap is the most appropriate tool for monitoring. W...

The spiralling whitefly, Aleurodicus dispersus Russell, is a tropical pest that attacks a variety of horticultural crops and ornamental plants. Seven host plants were chosen to analyse the preference of A. dispersus. Our results showed that Pterocarpus indicus (a key host) significantly attracted A. dispersus. To find attractants that could be used...

Whiteflies have distinct nymphal stages: their first stage is mobile, whereas the later immature stages are sessile. The developmental and structural changes of antennae and antennal sensilla in whiteflies during these stages have rarely been investigated. This paper describes the morphology of antennae and antennal sensilla in four nymphal stages...

Nucleic acid sequence of the 2900 bp fragment. (PDF)

C-6-based green leaf volatiles (GLVs) are signal molecules to herbivorous insects and play an important role in plant–herbivore interactions. How isomerization of GLVs affects insect’s olfactory response has been rarely tested. In laboratory and field experiments, we examined the effect of hexanol isomers on olfactory orientation of the spiraling w...

Metaphycus parasaissetiae Zhang & Huang (Hymenoptera: Encyrtidae) is an important adult parasitoid of Parasaissetia nigra Nietner (Hemiptera: Coccoidea). The external morphology of the antennal sensilla of male and female M. parasaissetiae was examined using scanning electron microscopy. The geniculate antennae of male and female M. parasaissetiae...

The waxy spirals produced by female Aleurodicus dispersus during oviposition could be a chemical barrier against some herbivorous insects such as Stephanitis typica. In this paper, a laboratory leaf disc bioassay was conducted to study the antifeedant activities of aromatic esters, phenol, and hydrocarbon in the female A. disperse-secreted waxes ag...

Apanteles cypris Nixon is one of the most important natural enemies of the larvae of rice leaf folder, Cnaphalocrocis medinalis Guenée. Through parasitizing their larvae, A. cypris wasps play a major role in biological control of C. medinalis; parasitized host larvae consume less rice leaf than non-parasitized counterparts, thus causing less damage...

Apanteles cypris is an endoparasitoid of rice pest Cnaphalocrocis medinalis. To better understand its host location mechanism, we examined the external morphology of antennal sensilla of A. cypris via scanning electron microscopy. The antennae of male and female A. cypris were filiform in shape, which consist of scape, pedicel, and flagellum with 1...

Plant communities on riversides in northern Guangdong Province were investigated with all-survey method, where a kind of native grasshopper Fruhstorferiola tonkinensis Will. broke out severely. 108 plant species belonging to 43 families were identified, and some plant indexes in those plant communities including their name, average height, congrega...

Taking a published natural population life table of rice leaf roller, Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), as an example, we estimated the population trend index, I, via re-sampling methods (jackknife and bootstrap), determined its statistical properties and illustrated the application of these methods in determining the control effec...

The study on the predatory functional responses of Stethorus parapauperculus to Tetranychus piercei adults at 16 °C , 20 °C , 24 °C , 28 °C and 32 °C showed that within the range of test temperatures, the predatory functional responses of female S. parapauperculus adults could be simulated by Holling type II , but the coefficients varied with tempe...

By the methods of geostatistics, this paper studied the spatial pattern of Fruhstorferiola tonkinensis nymphs in mulberry fields of north Guangdong. The results showed that the semivariogram of F. tonkinensis nymphs at all development stages could be described by spherical model, implying an aggregative distribution, and the range of their spatial...

Investigations were carried out on the orientation behavior of adult Campylomma chinensis Schuh (Hemiptera: Miridae) toward plant hosts Lantana camara, L. caniara cv. 'Flava', and L. montevidensis (Spreng. ) Briq. (Verbanaceae). Surveys on three Lantana plants showed that the distribution of C. chinensis in inflorescences was not related to floral...

Using marking recapture method, this paper studied the effects of host plants and climatic factors on the dispersion of Phyllotreta striolata adults. The results showed that the dispersion of the beetle was impelled by environment elements (tao = 1 ). Temperature and wind speed had significantly positive correlations with the dispersion of the beet...

The habit of 5 species pests from South China Botanical Garden was reported in this paper, they are Delias aglaia Linni, Zenzera coffeae Nietner, Parlatoria pergandii Comstock, Scarab (grub), Agrotis ypsilon Rottemberg. Their control methods were presented.