{"title":"A new species of Dasineura gall midge (Diptera: Cecidomyiidae) damaging sandalwood tree Santalum album (Santalaceae) in Northern Australia","authors":"Peter Kolesik, Andrew G. Manners, Joy Conroy","doi":"10.1007/s13355-025-00924-w","DOIUrl":"10.1007/s13355-025-00924-w","url":null,"abstract":"<div><p>Larvae of a previously undescribed species of gall midges (Diptera: Cecidomyiidae) were found feeding inside malformed inflorescences and young branches of the sandalwood tree <i>Santalum album</i> (Santalaceae) in a seed production orchard in Queensland, Australia. Infested flower buds, inflorescence stalks, and vegetative buds were transformed into irregular galls, rendering the flowers infertile and the growth of branches stunned. The gall midge is named <i>Dasineura santali</i> Kolesik, its morphology is described and a COI mitochondrial gene segment is sequenced. The new species is considered a potential pest in sandalwood production.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"375 - 379"},"PeriodicalIF":1.0,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Diet-dependent changes in body weight and sex pheromone ratio of the fall webworm, Hyphantria cunea Drury (Lepidoptera: Erebidae)","authors":"Takeshi Fujii, Daisuke Takagi, Noriyasu Ando, Wataru Kojima, Yuto Kitamura, Hikari Hanashiro, Shigeru Matsuyama, Hidefumi Mitsuno, Ryohei Kanzaki, Takeshi Sakurai","doi":"10.1007/s13355-025-00922-y","DOIUrl":"10.1007/s13355-025-00922-y","url":null,"abstract":"<div><p>Female moths of the fall webworm, <i>Hyphantria cunea</i> Drury (Lepidoptera: Erebidae), produce sex pheromones consisting of four components derived from essential fatty acids: (9<i>Z</i>,12<i>Z</i>)-9,12-octadecdienal (component <b>I</b>), (9<i>Z</i>,12<i>Z</i>,15<i>Z</i>)-9,12,15-octadecatrienal (component <b>II</b>), <i>cis</i>-9,10-epoxy-(3<i>Z</i>,6<i>Z</i>)-3,6-henicosadiene (component <b>III</b>), and <i>cis</i>-9,10-epoxy-(3<i>Z</i>,6<i>Z</i>)-1,3,6-henicosatriene (component <b>IV</b>). Intraspecific variations in the blend ratio of these components have been reported from different countries. Although the blend ratio of the sex pheromone components in these moths is known to vary depending on their host plants, the molecular mechanism remains unclear. As linoleic acid (LA) and α-linolenic acid (ALA) are essential fatty acids that cannot be de novo biosynthesized or interconverted, dietary differences in these fatty acids may affect the blend ratio of the four pheromone components produced by adult female moths of the species. We found that <i>H. cunea</i> fed on an artificial diet (group AD) in larval stage secreted more significant amounts of sex pheromone component <b>I</b> than those reared on mulberry leaves (group M). The subsequent switching-diet assay revealed that dienyl aldehyde components were generated by ingesting linoleic acid for 7 days before pupation. Our results demonstrate that a shift in the component ratio of sex pheromones can occur within generations through diet change, not only by genetic variation.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"301 - 308"},"PeriodicalIF":1.2,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maryam Pourya, Jahanshir Shakarami, Mozhgan Mardani-Talaee, Amin Sadeghi, Muhammad Z. Ahmed
{"title":"The impact of Rhizobacteria and micronutrients on fitness parameters and oxidative stress of predatory ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)","authors":"Maryam Pourya, Jahanshir Shakarami, Mozhgan Mardani-Talaee, Amin Sadeghi, Muhammad Z. Ahmed","doi":"10.1007/s13355-025-00931-x","DOIUrl":"10.1007/s13355-025-00931-x","url":null,"abstract":"<div><p>The predatory ladybird, <i>Adalia bipunctata</i> (Linnaeus) (Coleoptera: Coccinellidae), is a polyphagous species that primarily feeds on aphids. In this study, we assessed the demographic parameters and antioxidant activities of <i>A. bipunctata</i> individuals that were fed on <i>Sitobion avenae</i> (Fabricius) (Hemiptera: Aphididae) reared on wheat treated with Plant Growth-Promoting Rhizobacteria (PGPRs) (Biofarm and Probio96) and micronutrients (Librel Zinc and Alpha-Iron). The results showed that the shortest preadult period of <i>A. bipunctata</i> was recorded for individuals reared under Probio96 and Biofarm treatments. Additionally, the highest values of intrinsic rate (<i>r</i>) and net reproductive rate (<i>R</i><sub><i>0</i></sub>) of the predator were recorded under the Probio96 treatment, while the lowest values were observed with Alpha-Iron. The lowest activity levels of catalase, oxidized/reduced thiols ratio, peroxidase, and superoxide dismutase were found in 4th instar larvae. In contrast, the lowest antioxidant activities, except ascorbate peroxidase, were observed in adults. These findings were attributed to aphids reared on wheat fertilized with Probio96. It can be concluded that combining host plant resistance with Plant Growth-Promoting Rhizobacteria and biological control may offer an effective strategy for the integrated management of aphids.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"355 - 365"},"PeriodicalIF":1.2,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-025-00931-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photoperiodic control of larval development and pupation timing in the carpet beetle Anthrenus nipponensis (Coleoptera: Dermestidae)","authors":"Yosuke Miyazaki, Tomoya Matsuno, Hideharu Numata","doi":"10.1007/s13355-025-00927-7","DOIUrl":"10.1007/s13355-025-00927-7","url":null,"abstract":"<div><p>The larvae of carpet beetles of the genus <i>Anthrenus</i> (Coleoptera: Dermestidae) are indoor pests that feed on dry animal matter. The varied carpet beetle, <i>Anthrenus verbasci</i>, which pupates in spring, controls the larval period using a circannual clock responding to changes in photoperiod. However, there is a lack of research on the mechanism controlling the larval period of <i>Anthrenus</i> beetles that pupate in autumn. The effect of photoperiod on larval development and pupation timing was examined at 20°C in <i>Anthrenus nipponensis</i> Kalík & Ohbayashi that pupates in autumn. The larvae developed well under constant long days of light/dark (LD) 16:8 h, and pupation occurred approximately 29 weeks after hatching. Under constant short days of LD 12:12 h, larval development was strongly suppressed, and only a few individuals were able to pupate. The median larval weight at 26 weeks after hatching under LD 12:12 h was 0.22 mg, 3.7% of that under LD 16:8 h (5.96 mg). Because of this suppression of larval development, it was inconclusive whether the larval period of <i>A. nipponensis</i> is controlled by a circannual clock. In addition, the transfer from LD 16:8 h to LD 12:12 h at 15 weeks after hatching resulted in pupation 9 weeks earlier than that at constant LD 16:8 h. It is probable that in the field, young larvae develop by exposure to long days in early summer and mature larvae exposed to decreasing daylength in late summer achieve synchronized pupation in autumn.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"375 - 380"},"PeriodicalIF":1.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genetic divergence within Trissolcus japonicus (Hymenoptera: Scelionidae) in its native range","authors":"Kazunori Matsuo, Nakatada Wachi, Akeo Iwasaki, Ken Funayama, Ken Tabuchi, Shunsuke Furihata, Akihiko Takahashi, Masatoshi Toyama, Hisatomo Taki, Hiromi Mukai, Toshiharu Mita, Shin Komagata, Marisa Tomita, Akane Sato-Miura, Kyo Itoyama, Takuto Hirooka, Yoko Takematsu, Yoshimitsu Higashiura, Kenichi Kanai, Tomoko Ganaha-Kikumura","doi":"10.1007/s13355-025-00928-6","DOIUrl":"10.1007/s13355-025-00928-6","url":null,"abstract":"<div><p><i>Trissolcus japonicus</i> (Ashmead), native to Japan, has been known as an egg parasitoid of stink bugs. In particular, <i>T. japonicus</i> has been regarded as a potential biological control agent against the brown marmorated stink bug, <i>Halyomorpha halys</i> (Stål), which has spread to North America, South America, and Europe. While previous studies have suggested that <i>T. japonicus</i> has multiple strains with different genetic backgrounds that may lead to host-associated genetic differentiation, there has been limited research on this topic in the native range of <i>T. japonicus</i>. Additionally, it is suggested that <i>T. japonicus</i> contains multiple mitochondrial DNA lineages and varies in their ability to utilize different host species. This study aimed to investigate the genetic groups within <i>T. japonicus</i> specimens in Japan and their relation to geographic distribution, host use, and morphological characters using a mitochondrial DNA fragment and 429 genome-wide single nucleotide polymorphisms. The results of this study suggest the presence of multiple distinct genetic groups within <i>T. japonicus</i> specimens. These genetic differences did not align with clear differences in host specificity and/or availability; however, each genetic group was found in association with different host species, suggesting that they had potential differences in host range. Furthermore, multiple strains of <i>T. japonicus</i> were found to be distributed sympatrically with potential variation in host preferences. The use of such DNA sequence data was useful in recognizing and distinguishing between genetic strains of <i>T. japonicus</i> and will be important for identifying species through characteristics other than morphology. The importance of an integrated classification method and accurate identification database was also discussed.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"329 - 339"},"PeriodicalIF":1.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Feeding stimulants for various leaf beetles (Coleoptera: Chrysomelidae) in the leaf surface wax of their host plants","authors":"Tarô Adati, Yoichi Endo, Satoshi Senbo, Shigeru Saito, Kazuhiro Matsuda","doi":"10.1007/s13355-025-00917-9","DOIUrl":"10.1007/s13355-025-00917-9","url":null,"abstract":"","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"381 - 381"},"PeriodicalIF":1.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-025-00917-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of pest suppression effects of clover and barley as intercrops in cabbage and onion field","authors":"Takayuki Sekine, Takaho Oe, Yasuyuki Komagata, Izumi Ohta","doi":"10.1007/s13355-025-00926-8","DOIUrl":"10.1007/s13355-025-00926-8","url":null,"abstract":"<div><p>Intercropping with barley enhances natural enemy populations, leading to effective pest suppression in cabbage and onion cropping. However, excessive barley growth can reduce crop yield under certain field and weather conditions. Here, we compared the effects of intercropping with barley and clover, a lower-growing alternative to barley, on pest suppression and yield. In spring cabbage, clover intercropping suppressed multiple insect pests to a similar extent as did barley. However, in autumn cabbage and spring onions, while clover still reduced pest pressure below the control, its effect was significantly lower than that of barley. Barley intercropping significantly reduced the weight of both cabbage heads and onion bulbs, whereas clover intercropping did not. There were no significant differences between barley and clover in the availability of alternative prey for natural enemies or the occurrence of ground-dwelling insects, such as carabid beetles. While clover intercropping had a lower pest suppression effect than barley, its ability to mitigate yield loss is an important advantage. However, since it provides less weed suppression than barley, careful consideration is needed in fields with high weed density.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"317 - 327"},"PeriodicalIF":1.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Changes in gall density and morphology of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) along an elevation gradient in the Northeastern Türkiye","authors":"İsmet Harman, Tuncay Karan, Kadir Alperen Coskuner, Sukran Oguzoglu, Ertugrul Bilgili, Mustafa Avcı","doi":"10.1007/s13355-025-00919-7","DOIUrl":"10.1007/s13355-025-00919-7","url":null,"abstract":"<div><p>The Asian chestnut gall wasp, <i>Dryocosmus kuriphilus</i> Yasumatsu, 1951 (Hymenoptera: Cynipidae), induces gall formation on chestnut trees, causing severe damage and economic losses. Ecological conditions significantly influence <i>D. kuriphilus</i> biology and behavior, making it essential to understand these factors in order to apply effective management strategies. This study aims to investigate the elevation-dependent variation in gall density and morphology of <i>D. kuriphilus</i>. This field study was conducted in mid-May 2024, and covered the entire elevational distribution range of <i>Castanea sativa</i>, Anatolian chestnut forests in Trabzon Province, Northeastern Türkiye, with ten sampling plots (min 488 m-max 1100 m). In each plot, galls were counted on ten randomly selected trees, and branch samples were collected from five of these trees to assess <i>D. kuriphilus</i> damage and characterize gall morphology. Gall density and chamber count increased with elevation, with low-elevation groups differed markedly from medium and high-elevation groups. No significant differences in gall volume, width, or length were observed among the elevation groups. A significant correlation was found between the total gall count on the tree and gall counts in each cardinal directions. Inter-directional correlations were generally high, though north–south gall counts showed relatively weaker correlations. The mean gall density in the region was calculated as 12.05 per branch. Galls were similarly distributed on buds-shoots and leaves, but their forms varied significantly. Gall volume exhibited a weak-to-moderate positive correlation with the number of chambers. This study demonstrates that elevation significantly influences gall abundance and morphology in <i>D. kuriphilus</i>-induced galls, with distinct variation across elevation groups.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"443 - 455"},"PeriodicalIF":1.0,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analyses of bat-avoidance responses of cabbage looper moth with a focus on ultrasonic pulse repetition rates","authors":"Ming Siang Lem, Ryo Nakano, Masashi Nomura","doi":"10.1007/s13355-025-00920-0","DOIUrl":"10.1007/s13355-025-00920-0","url":null,"abstract":"<div><p>Behavioral responses of the cabbage looper, <i>Trichoplusia ni</i> (Hübner) (Lepidoptera: Noctuidae), to ultrasonic echolocation calls of insectivorous bats remain unclear for nocturnal predator–prey interactions. This study addressed ultrasonic pulse temporal characteristics that elicit escape responses from <i>T. ni</i> by subjecting tethered, flying moths of both sexes and host-searching mated females in particular to controlled ultrasound stimulation. By comparing moths flight response to bat call simulations with pulse-repetition rates (PRRs) ranging from 1 to 160 pulse/s, we show that ultrasonic pulses broadcast at 20 pulse/s (PRR20) are more effective in triggering <i>T. ni</i> evasive flight behaviors, especially for males which more frequently show flight cessation than females under tethered flight conditions. Focusing on mated females, the offspring (larvae) of which damage crops, ultrasonic pulses with PRR20 significantly reduced moth orientation towards host plants and decreased egg-laying frequency near them. These findings, provided by a quantitative assessment of <i>T. ni</i> response towards bat-like ultrasounds, demonstrates PRR20 as a major temporal parameter for ultrasonic pulse-induced evasive behavior in this species.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"279 - 288"},"PeriodicalIF":1.2,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-025-00920-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of DIPA-CRISPR and SYNCAS gene editing methods in the predatory bug Orius strigicollis (Hemiptera: Anthocoridae)","authors":"Naoki Matsuda, Norihide Hinomoto, Takaaki Daimon","doi":"10.1007/s13355-025-00923-x","DOIUrl":"10.1007/s13355-025-00923-x","url":null,"abstract":"<div><p>CRISPR/Cas9-mediated gene editing in insects conventionally relies on embryonic microinjection, which is challenging for non-model species. Therefore, adult injection-based methods have been developed to overcome this obstacle. One such simple and accessible method—direct parental CRISPR (DIPA-CRISPR)—enables gene editing by injecting the Cas9 ribonucleoprotein (RNP) into adult females. Subsequently, a modified approach called SYNCAS was developed by supplementing Cas9 RNPs with branched amphipathic peptide capsules and saponins as delivery enhancers. SYNCAS has been reported to yield higher gene editing efficiency (GEF) than DIPA-CRISPR in the spider mite. However, a direct experimental comparison of these methods under consistent conditions has not been conducted in insects. In the present study, we compared DIPA-CRISPR and SYNCAS methods in the predatory flower bug <i>Orius strigicollis</i> (Poppius) (Hemiptera: Anthocoridae), an important biocontrol agent. While peak GEF values were comparably high for both methods, SYNCAS-treated females continued to lay eggs with higher editing efficiency over a longer period than DIPA-CRISPR-treated females. It resulted in up to 4.8-fold higher yield of gene-edited progeny in the former group than in the latter group. These findings suggested that SYNCAS offers greater flexibility in terms of overall experimental design and gene editing outcomes than DIPA-CRISPR.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"60 4","pages":"309 - 316"},"PeriodicalIF":1.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}