Journal of economic entomology最新文献

{"title":"Compatibility of entomopathogenic nematodes and parasitoids of Drosophila suzukii Matsumura.","authors":"Jana C Lee, Isabel Lee-Park, Megan Carter, Kent M Daane, Flávio R M Garcia, Philip Fanning, Amanda K Hodson, Eric Janasov, Cera Jones, Arden R Lambert, Oscar E Liburd, Ashfaq A Sial, Frank G Zalom","doi":"10.1093/jee/toaf153","DOIUrl":"https://doi.org/10.1093/jee/toaf153","url":null,"abstract":"<p><p>Numerous natural enemies have been investigated to suppress spotted-wing drosophila, Drosophila suzukii, a pest of small fruits and cherries. Current efforts include widespread releases of an imported figitid parasitoid, Ganaspis kimorum, conserving resident pupal parasitoids and an adventive figitid, Leptopilina japonica, and the application of entomopathogenic nematodes. However, the combined effectiveness of parasitoids and nematodes is relatively unknown. Five laboratory studies examined the combination of G. kimorum or L. japonica with the nematodes Steinernema carpocapsae or S. feltiae. The nematodes were applied to the substrate when wandering D. suzukii larvae were about to pupate. Results showed that the combination of parasitoids and nematodes led to higher pest suppression than either parasitoid or nematode only treatments, with an overall 56% to 83% reduction in D. suzukii emergence relative to the control. In 2 cases, the combination had similar effectiveness as the parasitoid-only treatment. The exposure of parasitized larvae to nematodes lowered parasitoid emergence by 26% to 68%. Two studies exposed pupae recently parasitized by the pupal parasitoids Pachycrepoideus vindemiae and Trichopria drosophilae to S. carpocapsae, and the exposure to nematodes lowered adult parasitoid emergence by 49% and 71%, respectively. Given the potential increase in overall pest control but negative impact on developing parasitoids, the decision to combine approaches may be based on whether the goal is to maximize biological control or to establish parasitoids.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Treating newly split Apis mellifera honey bee colonies with organic miticides-an opportunity for Integrated Pest Management of Varroa destructor mites (Mesostigmata: Varroidae).","authors":"Dan Aurell, Selina Bruckner, Todd D Steury, Geoffrey R Williams","doi":"10.1093/jee/toaf126","DOIUrl":"https://doi.org/10.1093/jee/toaf126","url":null,"abstract":"<p><p>Parasitism from Varroa mites (Varroa destructor Anderson and Trueman, Mesostigmata: Varroidae) is a major driver of honey bee colony losses (Apis mellifera L., Hymenoptera: Apidae). While synthetic miticides are valuable for Varroa management, high reliance on these compounds has selected for miticide-resistant Varroa populations. To enable more sustainable Varroa management and provide options when synthetic miticides such as amitraz fail, effective Integrated Pest Management (IPM) approaches are urgently needed. Here, we show that organic miticides (oxalic acid, \"OA\"; and hops beta acids) can achieve high efficacy against Varroa when strategically combined with a widely used cultural control (starting new colonies, \"splits,\" with queen cells). This common splitting practice acts as a cultural control by temporarily reducing the amount of brood (developing bees) in colonies. This forces Varroa mites out of the protected environment of brood cells and on to adult bees-where they can be more effectively targeted with miticides. Based on Varroa infestation rates of adult bees, we determined that the organic miticide treatments OA dribble (75.5% efficacy), 5× OA dribble (82.2%), and HopGuard (82.7%) were significantly more effective than no treatment and provided comparable efficacy to amitraz-based miticides. In contrast, OA vapor (44.3%) did not provide effective Varroa control. Based on observations of queen and colony success, colony strength measurements, and hive weights, none of the organic miticides showed signs of harming colonies. Therefore, this combination of cultural and chemical control provides an additional opportunity for beekeepers to implement IPM for more effective and sustainable Varroa management.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of the development time, survival, and fecundity of black pecan aphid feeding on foliage of four pecan cultivars.","authors":"Shivakumar Veerlapati, Rajendra Acharya, Apurba K Barman","doi":"10.1093/jee/toaf150","DOIUrl":"https://doi.org/10.1093/jee/toaf150","url":null,"abstract":"<p><p>Development time, survival, and fecundity of the black pecan aphid (BPA), [Melanocallis caryaefoliae (Davis)] (Hemiptera: Aphididae), were assessed on four commercial pecan cultivars (Avalon, Desirable, Lakota, and Sumner) using a detached leaf method and using the age-stage, two-sex life table analysis. Results demonstrated a significant influence of pecan cultivars on the aphid's performance. BPA had a longer nymphal duration and reduced fecundity, which contributed to lower demographic parameters, including an intrinsic rate of increase (r = 0.31 d⁻¹), finite rate of increase (λ = 1.36 d⁻¹), and net reproductive rate (R0 = 50.91 nymphs/female) on Desirable cultivar, making it the least suitable cultivar among all. In contrast, the Lakota cultivar supported the highest demographic parameters (r = 0.36 d⁻¹, λ = 1.43 d⁻¹, and R0 = 95.80 nymphs/female) of BPA, indicating it as the most favorable host among the evaluated cultivars. However, there is no significant difference in preadult survival rate among the cultivars. The variability in aphid performance across the cultivars likely reflects differences in host plant resistance, highlighting the potential to integrate pest biology and demographic information into selecting resistant cultivars for effective BPA management in pecan crops.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Semiochemical interruption of Dendroctonus rufipennis (Coleoptera: Curculionidae) in Alaska and Colorado, U.S.","authors":"Jackson P Audley, Christopher J Fettig, Jason E Moan, Jessie Moan, Steve Swenson, Leif A Mortenson, Agenor Mafra-Neto","doi":"10.1093/jee/toaf166","DOIUrl":"https://doi.org/10.1093/jee/toaf166","url":null,"abstract":"<p><p>Spruce beetle, Dendroctonus rufipennis (Kirby) (Coleoptera: Curculionidae), poses a significant threat to mature spruce (Picea spp.) in western North America. We evaluated 3-methylcyclohex-2-en-1-one (MCH), the primary anti-aggregation pheromone of D. rufipennis, for tree protection at 3.5 and 7 g MCH/tree (SPLAT MCH, ISCA Inc., Riverside, CA) alone and in combination with acetophenone + (E)-2-hexen-1-ol + (Z)-2-hexen-1ol (PLUS) or with linalool + β-caryophyllene + (Z)-3-hexanol (AKB). Dendroctonus rufipennis colonization and subsequent mortality of individually treated spruce and of untreated spruce within 0.041-ha circular plots (11.3-m radius) surrounding individually treated spruce were assessed in two studies, one on the Kenai Peninsula, Alaska, and one on the San Isabel National Forest, Colorado. In a third study, we evaluated two release devices containing MCH, SPLAT MCH, and Synergy Shield MCH Double Bubble caps (Synergy Semiochemical Corp. Delta, BC), for tree protection at three doses (1, 3, and 7 g MCH/tree) on the Kenai Peninsula. In each study, treated trees and untreated control trees were baited with frontalin, the primary aggregation pheromone of D. rufipennis, to induce D. rufipennis attacks. Separately, we conducted three zones of inhibition studies to determine maximum inhibition from semiochemical point sources (treated spruce) based on D. rufipennis captures in baited traps. All semiochemical treatments, except SPLAT MCH alone, significantly reduced D. rufipennis colonization of treated spruce and neighboring spruce in all studies compared to the controls. All semiochemical treatments significantly reduced the mortality of treated spruce and neighboring spruce in all studies compared to the controls. Only two (of 300) semiochemical-treated spruce died during these studies while 47% to 80% mortality occurred in the controls (32 of 50 spruce across all studies). Maximum inhibition was statistically constant to 4 m from semiochemical point sources in Alaska and to 12 m in two separate studies in Colorado. The implications of these results are discussed.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the post-harvest survival and emergence of elongate hemlock scale from Fraser fir Christmas trees.","authors":"Dominic Manz, Kelly L F Oten, Clyde E Sorenson, Justin G A Whitehill, Robert M Jetton","doi":"10.1093/jee/toaf161","DOIUrl":"https://doi.org/10.1093/jee/toaf161","url":null,"abstract":"<p><p>The elongate hemlock scale (Fiorinia externa Ferris; Hemiptera: Diaspididae) is an invasive insect that originated in Japan and was first detected in North America in Queens NY in 1908. It has since become a significant post-harvest pest of Fraser fir (Abies fraseri [Pursh] Poir.), posing regulatory problems for the North Carolina Christmas tree industry which produces trees that are sold and moved across the country. Observations by specialists suggest that crawlers, one of two mobile stages of the insect, can emerge from eggs on host material for an extended period, potentially spreading this scale to new areas. However, research into crawler emergence under variable conditions, as well as the duration harvested Fraser fir can sustain live egg-producing adult female elongate hemlock scale (and thus prolong crawler emergence) is lacking. Therefore, we evaluated these insects' post-harvest activity on cut Fraser fir. In our first study, we evaluated weekly crawler emergence from Fraser fir trees and branches between two post-harvest treatments (baled and unbaled) under constant conditions for 7 wk. The second experiment aimed to simulate a Christmas tree's post-harvest lifecycle, over 13 wk, from lot (outdoor) to home (indoor) to discarding (outdoor). Our results show that crawlers continue to emerge from post-harvest Fraser fir for up to 40 and 90 d in our seven- and 13-wk studies, respectively. Moreover, we found live females with eggs present for up to 50 d post-harvest. These findings highlight the potential risk of introducing this scale to new areas via Fraser fir Christmas tree shipments.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diverse sources of resistance to Thrips palmi (Thysanoptera: Thripidae) in chili (Capsicum annuum and C. chinense).","authors":"Kunkanadu Onkaramurthy Swaroop, Manoj Kumar Nalla, Jung-Ching Hsu, Tsung-Han Lin, Yen-Wei Wang, Shih-Wen Lin, Paola A Sotelo-Cardona, Tsyr-Huei Chiou, Srinivasan Ramasamy, Derek W Barchenger","doi":"10.1093/jee/toaf168","DOIUrl":"https://doi.org/10.1093/jee/toaf168","url":null,"abstract":"<p><p>Thrips are the most devastating pests globally and significantly reduce productivity and quality of chili plants and fruits. Thrips infest chili crops, causing direct damage by feeding on leaves, fruits, and flowers and indirect damage as vectors for tospoviruses. Enhancing host plant resistance is a sustainable and eco-friendly approach to managing pests. Twenty-three entries, previously identified as resistant to the twospotted spider mite (Tetranychus urticae Koch), along with thrips-resistant entries identified through field-based observations, were evaluated against Thrips palmi Karny under controlled environmental conditions. Three Capsicum annuum and 6 C. chinense entries were identified as resistant to thrips. Validation screening confirmed these 9 entries as being resistant to T. palmi. A total of 7,072 single nucleotide polymorphisms (SNPs) identified through ddRAD sequencing of the 9 resistant entries were used for phylogenetic analysis. The entries clustered by species, with C. chinense forming a distinct clade separate from C. annuum; however, within each clade, the highly resistant entries were genetically divergent, suggesting the presence of diverse resistance genes. The diverse sources of host resistance to T. palmi identified provide a basis for future research in understanding host-arthropod interactions and breeding schemes to achieve higher levels of resistance in chili peppers.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A funnel trap for the detection of hemlock woolly adelgid (Hemiptera: Adelgidae) and a method of extracting crawlers from trap samples.","authors":"Jeffrey G Fidgen, Glen Forbes, Lucas E Roscoe, Michael Stastny, Berni M van der Meer, Jeffrey Ogden, Martin Williams","doi":"10.1093/jee/toaf140","DOIUrl":"https://doi.org/10.1093/jee/toaf140","url":null,"abstract":"<p><p>Eastern hemlock, Tsuga canadensis (L.) Carr., in eastern Canada is under threat from the invasive hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae). Early detection is a key feature to the management of A. tsugae because the impacts of this pest accrue quickly due to its bivoltine life cycle, and treatments can take a year or more to become effective. We tested a novel funnel trap design to collect the mobile first instar nymphs (crawlers) as a tool for early detection of adelgid infestations prior to host symptoms. The funnel traps performed better at detecting A. tsugae crawlers at very low abundance in a stand compared to vertically oriented sticky traps or to canopy branch tip sampling. Satisfactory detection rates for operational surveys were achieved using one or two funnel traps per site deployed for 2 wk during each of the two generations of A. tsugae and moving traps to new locations in the stand-between generations. We also optimized a protocol for extracting crawlers from trap samples, using stacked sieves (425 and 100 µm) to remove debris and retain crawlers, respectively, with the probability of detecting at least one crawler unaffected by the presence of debris. The improved trapping and extraction technique is aimed at stand-level early detection of this destructive pest and could be adapted to other similar, cryptic insect pests.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of foliar insecticides for Dectes stem borer (Coleoptera: Cerambycidae) management in South Dakota soybeans.","authors":"Zachary D Loomis, Philip A Rozeboom, Bradley A McManus, Adam J Varenhorst","doi":"10.1093/jee/toaf151","DOIUrl":"https://doi.org/10.1093/jee/toaf151","url":null,"abstract":"<p><p>Dectes stem borer, Dectes texanus LeConte, is an insect that infests sunflowers, Helianthus annuus L., and soybeans, Glycine max L., in South Dakota. Historically Dectes stem borer has been a minor pest of soybean but has become increasingly prevalent in the southeastern area of the state since 2017. Most of the damage caused by this insect occurs when the larvae girdle the stem, leading to lodging. Lodging causes additional yield losses above the 10% to 15% reduction caused by larval tunneling activity. If detected, losses due to lodging can be minimized by early harvest of the infested field. Previous management recommendations proposed crop rotation and tillage as methods to minimize Dectes stem borer damage. However, these cultural strategies are not currently effective as Dectes stem borer populations continue to increase even when they are implemented. Previous research has determined that chemical management of Dectes stem borer is either not effective or cost prohibitive. This is due to the prolonged emergence period of the adult beetle and the larva being sheltered within the stem. The purpose of this research was to determine if timed insecticide applications can be used to effectively reduce Dectes stem borer pressure and improve soybean yields. This study evaluated several insecticides and three insecticide application timings. The results of the study indicate that calendar date applications will not be sufficient for the management of Dectes stem borer. However, when the applications synchronized with adult activity, we observed significantly fewer infested soybeans and improved yield.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel diamide insecticide, tetraniliprole, inhibits the population growth and development of Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) with different susceptibility levels, through its lethal and sublethal effects.","authors":"Yameng Zhang, Kang Jia, Xiaojun Guo, Ya Li, Yating Zhu, Runxiang Zhang, Qingjun Wu, Yuntao Feng","doi":"10.1093/jee/toaf158","DOIUrl":"https://doi.org/10.1093/jee/toaf158","url":null,"abstract":"<p><p>The tomato leaf miner, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), is a significant invasive species globally, inflicting considerable damage on tomato industry. Tetraniliprole is a new type of diamide insecticides, which can effectively control lepidoptera insects. In this study, we investigated both the acute toxicity and sublethal effects of tetraniliprole on T. absoluta populations exhibiting varying susceptibility levels. The results indicated that the LC50 of tetraniliprole for the susceptible strains (SX-S) and tetraniliprole-selection strains (Tet-R) were 0.31 and 21.22 mg·L-1, respectively. The Tet-R strain showed 68.45-fold higher resistance than the SX-S strain. Tetraniliprole exposure at LC10 and LC30 significantly prolonged larval duration in F0 generation SX-S and Tet-R strains. The pupal stage, pupal weight, and fecundity of the SX-S strain were significantly decreased, while only pupal weight was significantly reduced in the Tet-R strain. Moreover, LC30 of tetraniliprole significantly affected the r, λ, R0, and T of the Tet-R strain but had no significant impact on the SX-S strain. Additionally, sublethal tetraniliprole concentrations showed transgenerational effects on the F1 generation. The egg stage of the SX-S and Tet-R strains were significantly prolonged. Tetraniliprole significantly affected the R0, T and GRR of the SX-S strain, while only T was significantly affected in the Tet-R strain. In conclusion, tetraniliprole inhibited the growth and development of T. absoluta. Moreover, different susceptibility levels significantly influenced the sublethal effects and transgenerational effects of tetraniliprole on T. absoluta. These findings serve as a reference for the scientific use of tetraniliprole, and the IPM of T. absoluta.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: A description of temperature-dependent development to infer Hyphantria cunea (Lepidoptera: Erebidae) and its application to predict the species voltinism in China.","authors":"","doi":"10.1093/jee/toaf148","DOIUrl":"https://doi.org/10.1093/jee/toaf148","url":null,"abstract":"","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144499954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}