Biocontrol Science and Technology最新文献

{"title":"Risk assessment of the host range of Hydrellia lagarosiphon for the biological control of Lagarosiphon major in Ireland","authors":"R. Mangan, J. Baars","doi":"10.1080/09583157.2023.2215993","DOIUrl":"https://doi.org/10.1080/09583157.2023.2215993","url":null,"abstract":"ABSTRACT Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae) is a submerged freshwater plant native to South Africa, and a destructive invader of waterways across Europe, Australasia and the U.S.A. Native range exploration identified a leaf mining ephydrid fly, Hydrellia lagarosiphon, as a promising biological control candidate agent. Host specificity was conducted on H. lagarosiphon, using laboratory no-choice and paired choice tests. A number of non-target native Potamogeton species sustained feeding damage under no-choice and paired choice testing. To prevent rejection of a potentially safe agent, multi-generational population persistence trials were conducted on select native Potamogetonaceae. The non-target species could not sustain a viable H. lagarosiphon population beyond two generations. A risk assessment, incorporating the preference and relative survival, indicated that three non-target species presented extremely low (<1.3%) risk of sustaining damage relative to that of L. major. Potamogeton polygonifolius and P. x lanceolatus present a reproductive risk of 5.61% and 11.5% respectively but could not support a viable population beyond the 2nd generation. These results, coupled with damage efficacy and predicted colonisation, demonstrate the potential H. lagarosiphon has as a biological control agent for L. major in Ireland. Highlights Classical biological control could provide a safe, cost-effective method of control of the invasive submerged weed Lagarosiphon major. Multigenerational population persistence tests strengthen host specificity testing to predict feeding and reproductive risks of a biological control agent. Risk assessment data suggest a low level of Hydrellia lagarosiphon larval feeding could occur on three non-target Potamogeton species. While two native Potamogeton species sustain a relatively low reproductive risk, they failed to sustain the fly beyond the 2nd generation. Classical biological control provides an alternative control strategy to costly mechanical or environmentally unsuitable chemical control as the safety of Hydrellia lagarosiphon has been established in this pre-release testing procedure. The risk assessment presented here could form the basis of an application to the regulatory authorities to release H. lagarosiphon on L. major in Ireland.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86550602","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":"The influence of agent density for biological control of young Brazilian peppertree (Schinus terebinthifolia) with the Brazilian peppertree thrips (Pseudophilothrips ichini)","authors":"Megann M. Harlow, N. Harms, Aaron N. Schad","doi":"10.1080/09583157.2023.2215485","DOIUrl":"https://doi.org/10.1080/09583157.2023.2215485","url":null,"abstract":"ABSTRACT Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), is an invasive tree in the Southeastern United States, Texas, California, and Hawaii. The Brazilian peppertree thrips, Pseudophilothrips ichini Hood (Thysanoptera: Phlaeothripidae), is a recently approved biological control agent for use within the US. The thrips have since been released in the field and are expected to reduce Brazilian peppertree performance. Pseudophilothrips ichini is likely to impact young trees but the impacts may vary based on thrips population size and tree age. To better understand the factors contributing to agent impact on young trees and P. ichini population growth, we measured the effect of P. ichini density (0, 4, 10, and 20 thrips) and tree age (3-, 4-, and 6-month-old plants), on tree performance and P. ichini productivity in the laboratory. Brazilian peppertree height and the number of growing tips were reduced across all age groups. However, the negative impact was more pronounced on the youngest trees, which had a reduction in the relative change in height of 171% and a 100% reduction in the number of growing tips. Pseudophilothrips ichini production was positively correlated with tree height (r = 0.44) and biomass (r = 0.56), but thrips relative production was similar across tree age. Results indicate that P. ichini have a great capacity for population increase regardless of starting density. Field studies are needed to corroborate these findings and identify barriers to agent success. This work aims to refine expectations of the impacts to Brazilian peppertree caused by P. ichini.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84631804","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":"Host-specificity testing of the leaf-feeding flea beetle, Phenrica guerini, a biological control agent for the invasive alien cactus, Pereskia aculeata","authors":"Elizabeth Dixon, I. Paterson, P. Muskett, A. McConnachie","doi":"10.1080/09583157.2023.2214342","DOIUrl":"https://doi.org/10.1080/09583157.2023.2214342","url":null,"abstract":"ABSTRACT Pereskia aculeata Miller (Cactaceae) is an environmentally damaging invasive alien plant in South Africa and Australia. The flea-beetle, Phenrica guerini Bechyné (Coleoptera: Chrysomelidae), has been used in South Africa as a biological control agent against the plant for more than 30 years but updated host-specificity testing was required to determine its suitability as an agent in Australia. No-choice larval survival tests were conducted on 26 test plant species from 11 families, with survival to the adult stage only being recorded on the target weed, P. aculeata. No-choice oviposition testing with adult P. guerini was conducted on six test plant species. No adult feeding was recorded on any test plants and significantly more eggs were oviposited on P. aculeata (158.8 SE ± 21.4) than on Talinum caffrum (5.2 SE ± 5.2), which was the only test plant on which they oviposited. The adults survived on average 27 days longer on P. aculeata than on any test plant species. In a multiple-choice trial that included all three species that supported any larval feeding as well as P. aculeata, oviposition and feeding was only recorded on target weed. Phenrica guerini is suitably host specific for consideration in Australia as a biological control agent against P. aculeata.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78835975","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":"Potential use of bacterial strain in the genus Serratia to biocontrol fungal pathogens associated with defoliation on Pinus patula","authors":"L. M. Gutiérrez-Flores, L. López-Reyes, A. Mauricio-Gutiérrez, M. Carcaño-Montiel, E. Portillo-Manzano, L. Gómez-Velázquez","doi":"10.1080/09583157.2023.2210276","DOIUrl":"https://doi.org/10.1080/09583157.2023.2210276","url":null,"abstract":"ABSTRACT Pathogenic fungi that cause defoliation in different pine species, including Pinus patula, have been reported. The most common practice for controlling these pathogens is the use of fungicides, which have adverse environmental consequences. The objective of this study was to evaluate an alternative for pathogen control without affecting the ecosystem. Bacteria with antifungal activity obtained from forest soil were isolated and biochemically and molecularly identified for evaluation in biocontrol assays of fungi associated with defoliation under laboratory and field conditions. Two species of the genus Serratia, Serratia grimesii and S. proteamaculans, were identified as bacteria with antifungal activity. In vitro biocontrol was achieved by reducing the mycelium growth of fungi associated with diseased needles of P. patula: Alternaria alternata, Annulohypoxylon stygium, Botryosphaeria dothidea, Curvularia lunata, C. pseudobrachyspora, C. spicifera, C. trifolii, Daldinia sp., Daldinia eschscholtzii, Diplodia sapinea, Lophodermium indianum, and Myrmaecium rubricosum. The fungi in P. patula (Annulohypoxylon stygium and Daldinia eschscholtzii) decreased their damage by 82% and 77%, respectively, in the presence of Serratia under humid chamber conditions. In addition, the incidence of lesions (IL) and Disease Severity Index were significantly reduced under natural conditions. The results showed that biocontrol with bacteria of the genus Serratia is an alternative for the management of health in Pinus patula trees.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81651390","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":"First report of Metarhizium anisopliae s.l. action on gastrointestinal ruminant nematodes in the free-living stage and its persistence in soil","authors":"Ially de Almeida Moura, Inês dos Santos Pereira, Raoni Andrade Pires, O. L. Ribeiro, Caio Monteiro, L. Rocha, W. M. Perinotto","doi":"10.1080/09583157.2023.2207789","DOIUrl":"https://doi.org/10.1080/09583157.2023.2207789","url":null,"abstract":"ABSTRACT The fungus Metarhizium anisopliae is one of the most studied biological control agents in parasite control programs, especially when aiming the control of arthropods. Yet, studies using this biological agent to control gastrointestinal nematodes in ruminants are scarce. The present study evaluated the efficacy of the entomopathogenic fungus Metarhizium anisopliae sensu lato (s.l.) formulated in water and mineral oil on the free-living stages of gastrointestinal nematodes (GINs) in goats, by means of in vitro tests and in semi-natural conditions. The study also evaluated the persistence of the fungus in the soil. The experiments were constituted of four groups: control water; control oil; aqueous formulation of M. anisopliae s.l.; oil formulation of M. anisopliae s.l., each group consisting of 10 pots with Urochloa brizantha cv. MG5 grass. In the in vitro test, the groups treated with the aqueous and mineral oil formulation showed efficacy in controlling gastrointestinal nematodes of goats, providing a reduction of 45.5% and 43%, respectively, and a reduction varying from 36% to 77.9% and 42.6% to 90.2%, respectively, in the experiment under semi-natural conditions. Isolate M. anisopliae s.l. proved to be effective against goat’s gastrointestinal nematodes in the free-living stage, in both in vitro and semi-natural conditions tests, by significantly reducing the number of larvae with the formulations tested and remaining active for a period up to 52 days in the pots’soil. This study suggests the potential use of M. anisopliae s.l. for the biological control of gastrointestinal nematodes in ruminants.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85996134","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":"Microbial volatilome in food safety. Current status and perspectives in the biocontrol of mycotoxigenic fungi and their metabolites","authors":"Z. Ul Hassan, Safa Oufensou, Randa Zeidan, Q. Migheli, S. Jaoua","doi":"10.1080/09583157.2023.2205616","DOIUrl":"https://doi.org/10.1080/09583157.2023.2205616","url":null,"abstract":"ABSTRACT Fungal infection and mycotoxins contamination in food and feed products cause significant economic losses to the food and agricultural industry. Although the efficacy of synthetic fungicides is unquestionable, there are serious issues associated with their application in agriculture. Improper and/or prolonged application of these products may cause the emergence of resistant fungal populations, carry-over of chemicals in the human diet and adverse effects on non-target species. By contrast, ease in application and negligible effects on the environment makes microbial volatile organic compounds (VOCs) safe and sustainable substitutes to synthetic fungicides. A considerable research investment has highlighted the efficacy and suitability of VOCs emitted by bacteria, yeast and filamentous fungi for application in food crops and stored products. In this review, focus is made on the potential use of microbial VOCs as inhibitors of toxigenic food mycobiota and their mycotoxins. The mode of action of microbial volatile compounds, possible application in different scenarios, limitations and perspectives are discussed.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85058436","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":"Host preference and development of Habrobracon hebetor on larvae of Arenipses sabella and Ephestia cautella","authors":"Amany N. Mansour","doi":"10.1080/09583157.2023.2210271","DOIUrl":"https://doi.org/10.1080/09583157.2023.2210271","url":null,"abstract":"ABSTRACT Habrobracon hebetor Say (Hymenoptera: Braconidae) is an larval ectoparasitoid, mainly of pyralid moths. The almond moth, Ephestia cautella Walker and the greater date moth, Arenipses sabella Hampson are two economic pyralid pests of date palm that were found to be attacked by the parasitoid. Although parasitised larvae of A. sabella are often encountered in the field, no data were available regarding their interaction with the parasitoid. The suitability of A. sabella as a host of H. hebetor was assumed, so it was tested and compared to that of E. cautella, which has received much research attention as an important host of the parasitoid. The parasitoid proved to be able to develop and reproduce on A. sabella larvae, and no significant difference was detected with E. cautella larvae. When the larvae of the two hosts were offered simultaneously to female parasitoids for 48 h, the rates of paralysis (0.98) and parasitism (0.93) were higher on E. cautella and consumed less time when checked every 12 h. This is likely because it is almost half the size of A. sabella. The larger size of A. sabella larvae supported the parasitoid to deposit more eggs on it. The nonsignificant difference in the results suggests that the parasitoid does not prefer one of the hosts over the other. The results of this study provide valuable insights into the effectiveness of H. hebetor against A. sabella for use in biological control strategies for controlling this pest after conducting more research in this promising area.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89992132","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":"Application of Lactobacillus spp. for the biological management of green mold (Penicillium digitatum) on sweet orange fruit under in vitro and storehouse conditions","authors":"Samaneh Jahantigh, N. A. Oghaz, K. Rahnama, S. Hatamzadeh","doi":"10.1080/09583157.2023.2208781","DOIUrl":"https://doi.org/10.1080/09583157.2023.2208781","url":null,"abstract":"ABSTRACT This study aimed to investigate the use of probiotic lactic acid bacteria including Lactobacillus brevis, L. plantarum, L. helveticus and L. delbrueckii from dairy products against Penicillium digitatum (green mold) on sweet orange fruit. Antifungal activity of Lactobacillus spp. was first assayed using bacterial cells through the overlay method against 105 spore/mL suspension of P. digitatum. Also, P. digitatum growth inhibition was measured in the PDA medium containing 15 and 30% cell-free supernatant (CFS) of Lactobacillus spp. Antifungal activity of Lactobacillus spp. was evaluated under storehouse conditions by treating wounded fruits with 108/mL cell suspension (CS) and 30% CFS of Lactobacillus spp., which then infected with 105/mL spore suspension of P. digitatum. The CS and CFS of L. plantarum had the best antifungal activity under both in vitro and in vivo conditions followed by L. helveticus, L. delbrueckii and L. brevis. L. plantarum. The 15 and 30% L. plantarum CFS were able to inhibit the growth of P. digitatum by 30.31%, 76.82% and 97.6% respectively, under in vitro conditions. Also, L. plantarum CS and 30% CFS reduced the growth of the P. digitatum on the fruit by 92.77 and 98.9% respectively, under storehouse conditions. The total content of all sugars of treated fruits with Lactobacillus spp., CS and CFS showed significant difference compared to untreated fruits. Therefore, the present study highlights the successful application of biological fungicides based on secondary compounds of Lactobacillus spp. due to greater stability of metabolites than bacterial cells in the environment. GRAPHICAL ABSTRACT","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80602299","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":"Susceptibility of Duponchelia fovealis Zeller (Lepidoptera: Crambidae) to different entomopathogens in laboratory conditions","authors":"Miriam Anaid Reyes-Serrano, A. Guzmán‐Franco, Ma. Teresa Santillán Galicia, R. Alatorre-Rosas, F. Tamayo-Mejía, J. C. Rodríguez-Maciel","doi":"10.1080/09583157.2023.2207790","DOIUrl":"https://doi.org/10.1080/09583157.2023.2207790","url":null,"abstract":"ABSTRACT Duponchelia fovealis Zeller, is currently considered one of the most important emergent pests of a range of crops. This pest is common in Europe, but its presence in the Americas, particularly Brazil and Mexico, has been only recently reported in strawberry crops. Since its recent arrival in Mexico interest in the potential of different entomopathogens for the control of D. fovealis has increased. Here we evaluated commercial products of the bacterium Bacillus thuringiensis; three different species of entomopathogenic nematodes; and different isolates of four species of entomopathogenic fungi. All pathogens were evaluated against 3rd instar larvae, except nematodes which were evaluated against both larvae and pupae. Analysis revealed significant differences in virulence amongst B. thuringiensis products, where the most virulent was nine times more virulent than the least virulent product. Amongst nematodes, Heterorhabditis bacteriophora was the most virulent and larvae were more susceptible to nematodes than pupae; larval mortalities at the highest dose evaluated (200 infective juveniles [IJs]) were between 80 and 95%, while for pupae they were between 25 and 40%. Mortality of larvae due to entomopathogenic fungi was lower than for the other entomopathogens; the highest mortality observed was 25% caused by an M. anisopliae isolate, although this was not statistically different to other fungal isolates. Overall, our results showed that biological control products based on B. thuringiensis or the nematode H. bacteriophora have the greatest potential; we consider that H. bacteriophora could be more convenient as it infects larvae and pupae.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76887312","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":"Study on the control potential of Alternaria alternata against four species of weeds in agricultural fields on the Tibetan Plateau","authors":"Yutong He, Hai-xia Zhu","doi":"10.1080/09583157.2023.2209297","DOIUrl":"https://doi.org/10.1080/09583157.2023.2209297","url":null,"abstract":"ABSTRACT The aim of this study was to investigate the potential and pathogenic mechanism of the pathogenic fungus Alternaria alternata strain GD-011-B against four major agricultural weeds on the Tibetan plateau, and to lay a foundation for the commercial production and application of this strain. The mycelial masses had herbicidal activity against the isolated leaves of the weeds Chenopodium album, Elsholtzia densa, Malva verticillata, and Amaranthus retroflexus L., with a descending herbicidal activity order of M. verticillata > E. densa > A. retroflexus > C. album. The fermentation broth also showed herbicidal activity by treating the whole plants of these four weeds in the descending order of C. album > E. densa > M. verticillata > A. retroflexus. Scanning electron microscopy revealed that GD-011-B mycelia invaded the inner part of the leaf of A. retroflexus through the stomata and epidermal tissue gap and extended to the back, damaging the leaf epidermis and tissues and sporulating on the leaf surface, ultimately resulting in leaf disease. The fermentation broth of pathogen GD-011-B was not pathogenic to Vicia faba L., Pisum sativum L., Hordeum vulgare L., or Triticum aestivum L., but it was slightly pathogenic to Brassica napus L. Therefore, Alternaria alternata can be used as a herbicidal microorganism with high potential for biological control of four major agricultural weeds on the Tibetan plateau.","PeriodicalId":8820,"journal":{"name":"Biocontrol Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86655687","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}