Crop ProtectionPub Date : 2024-12-05DOI: 10.1016/j.cropro.2024.107070
Yuan-Cheng Hsu , Chao-Jen Wang , Wen-Hsin Chung
{"title":"First report of snow bush wilt caused by Ralstonia pseudosolanacearum (Ralstonia solanacearum phylotype I) in Taiwan","authors":"Yuan-Cheng Hsu , Chao-Jen Wang , Wen-Hsin Chung","doi":"10.1016/j.cropro.2024.107070","DOIUrl":"10.1016/j.cropro.2024.107070","url":null,"abstract":"<div><div>In 2019, an unknown wilting disorder on snow bush (<em>Breynia disticha</em>) was observed in Changhua County, Taiwan. Symptomatic snow bush plants exhibited wilting, necrotic, and vascular discoloration. Two strains Bre-RS1 and Bre-RS2 were isolated from symptomatic tissues. Based on physiological tests and molecular analysis, the two bacterial strains were identified as <em>Ralstonia pseudosolanacearum</em> biovar 4. The pathogenicity tests showed that two isolates belonging to race 1 could infect Phyllanthaceae, Solanaceae, and Convolvulaceae with wound inoculation. This report describes a new bacterial wilt disease of snow bush caused by <em>R</em>. <em>pseudosolanacearum</em> in Taiwan and the world.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107070"},"PeriodicalIF":2.5,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-12-04DOI: 10.1016/j.cropro.2024.107058
Akshay Dheeraj , Satish Chand
{"title":"Deep learning based weed classification in corn using improved attention mechanism empowered by Explainable AI techniques","authors":"Akshay Dheeraj , Satish Chand","doi":"10.1016/j.cropro.2024.107058","DOIUrl":"10.1016/j.cropro.2024.107058","url":null,"abstract":"<div><div>The agricultural crops, like corn, suffer from the presence of undesirable plants known as weeds, which compete for sunlight and water, leading to lower crop yields. Recognizing weeds during their early growth stage is vital for minimizing their impact on crop growth and maximizing yield. By leveraging a lightweight deep neural network, this research endeavours to classify corn and the weeds that often grow alongside it. To achieve this, the Enhanced Convolutional Block Attention Module (CBAM) embedded EfficientNet model (ECENet) is proposed by integrating the enhanced CBAM with EfficientNetB0 model and the inclusion of extra layers. The Enhanced CBAM has been created by modifying the original CBAM through the parallel arrangement of the Channel Attention Module (CAM) and Spatial Attention Module (SAM). The simultaneous use of attention modules eradicates the need for CAM and SAM to be dependent on each other, resulting in the independent extraction of attention feature maps. The ECENet model was trained and tested on the corn weed dataset to understand the discriminative features of corn and weed. The proposed system yielded 99.92% overall recognition accuracy, with 4,772,010 parameter footprints, a model size of 57.4 megabytes, and 0.796 giga floating-point operations per second (GFLOPs). The proposed ECENet takes 37%, 91%, 80%, and 78% fewer parameters than DenseNet121, InceptionResNetV2, ResNet50V2, and XceptionNet respectively. The proposed model excels in diagnosing weed and crop differentiation, outperforming previous studies and state-of-the-art models. Finally, interpretability of the proposed model has been provided using explainable AI techniques (XAI) such as GradCAM and LIME. Due to its small memory requirement and high accuracy, the ECENet is ideal for real-time corn and weed classification on handy and mobile devices with minimal computational capabilities. The system can also be expanded to be included in agricultural robots for real-world weeding in large farmlands.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107058"},"PeriodicalIF":2.5,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-12-04DOI: 10.1016/j.cropro.2024.107067
Aaron Becerra-Alvarez , Kassim Al-Khatib
{"title":"Weeds and rice response to post-emergence applications of pendimethalin alone and in herbicide mixtures in water-seeded rice","authors":"Aaron Becerra-Alvarez , Kassim Al-Khatib","doi":"10.1016/j.cropro.2024.107067","DOIUrl":"10.1016/j.cropro.2024.107067","url":null,"abstract":"<div><div>Herbicides are an important tool for weed management in water-seeded rice (<em>Oryza sativa</em> L.); however, the reduced efficacy from available herbicides and the lack of new herbicides have encouraged research on new use of older herbicides for this production system. This research evaluated weed control and water-seeded rice response to pendimethalin applied post-emergence in a field trial. Pendimethalin was applied alone and in herbicide mixtures at 1.1, 2.3 and 4.4 kg ai ha<sup>−1</sup> with three graminicide or broad-spectrum foliar herbicides to rice at the 4- to 5-leaf stage. A greenhouse study was conducted to evaluate rice response to pendimethalin applied at 1.1 and 2.3 kg ai ha<sup>−1</sup> at the 4- to 5-leaf stage grown under 5-cm and 10-cm flood depth conditions. Grass weed control at 14 days after treatment was 68%–86% when pendimethalin was applied in herbicide mixtures compared to 48%–63% when applied alone. The mixtures with bispyribac-sodium and propanil provided broad spectrum control of grass, sedge, and broadleaf weeds unlike the mixture with cyhalofop-butyl, a graminicide herbicide. All treatments resulted up to 8% of visual rice injury. Rice tiller counts and grain yield were not affected by pendimethalin. The 5-cm and 10-cm flood depth, in the greenhouse study, affected shoot length, root length, and root biomass but not shoot biomass averaged over pendimethalin applications; however, rice was normal by 14 or 21 days after treatment. Only shoot length was reduced by 12% at 21 days after treatment at 3.4 kg ai ha<sup>−1</sup> of pendimethalin. The results from these studies demonstrate pendimethalin can be a potential herbicide for water-seeded rice and does not cause injury of concern on rice when applied at the 4- to 5-leaf stage rice.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107067"},"PeriodicalIF":2.5,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-12-03DOI: 10.1016/j.cropro.2024.107059
Christiane A. da Costa , Ailton Reis , Eduardo S.G. Mizubuti , Valdir Lourenço Jr.
{"title":"Sensitivity of Septoria lycopersici Speg. Isolates to fungicides in Brazil","authors":"Christiane A. da Costa , Ailton Reis , Eduardo S.G. Mizubuti , Valdir Lourenço Jr.","doi":"10.1016/j.cropro.2024.107059","DOIUrl":"10.1016/j.cropro.2024.107059","url":null,"abstract":"<div><div>Disease management using synthetic fungicides is the main strategy used by tomato growers to prevent tomato yield reductions caused by Septoria leaf spot (SLS). Despite the importance of this plant disease, there is little information about the sensitivity of <em>Septoria lycopersici</em> isolates to fungicides. The sensitivity of 94 isolates of S<em>. lycopersici</em> to azoxystrobin, chlorothalonil, tebuconazole, and thiophanate-methyl was assessed in experiments using fungicide-amended 96-well microtiter plates. The highest EC 50 values above 100 mg/L were detected for azoxystrobin, thiophanate-methyl, and tebuconazole. Based on these results, five isolates classified as resistant and five as sensitive to each fungicide were selected for the experiments. Tomato plants were inoculated with sensitive (S) and resistant (R) isolates and sprayed by the fungicides in three greenhouse assays. The differences in the values of the area under the progress curve of Septoria leaf spot (AUDPC), disease severity progress, and progress rates were not so pronounced between tomato plants sprayed and non-sprayed with fungicides. The AUDPC values for plants inoculated with S and R isolates and treated with chlorothalonil, tebuconazole, and thiophanate-methyl ranged from 10 to 320, 0 to 80, and 50 to 150, respectively. For azoxystrobin, the AUDPC values were around 200 in plants inoculated with S and R isolates. There is evidence of reduced sensitivity of individuals of <em>S. lycopersici</em> to azoxystrobin, tebuconazole, and thiophanate-methyl in the population in Brazil. Therefore, tomato growers should rotate and combine fungicides with different mechanisms of action and low-risk of resistance to control SLS.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107059"},"PeriodicalIF":2.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-29DOI: 10.1016/j.cropro.2024.107057
V.P. Krithika , Anita Bellie , Ramkumar Haran , Deeikshana Thirunavukarasu , Shandeep Ganeshan , C. Sankaranarayanan , Prabhu Somasundaram , M. Suganthy , Gomathi V
{"title":"Nanoemulsified formulation of cell-free supernatant from Photorhabdus luminescens as a sustainable biopesticide against Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)","authors":"V.P. Krithika , Anita Bellie , Ramkumar Haran , Deeikshana Thirunavukarasu , Shandeep Ganeshan , C. Sankaranarayanan , Prabhu Somasundaram , M. Suganthy , Gomathi V","doi":"10.1016/j.cropro.2024.107057","DOIUrl":"10.1016/j.cropro.2024.107057","url":null,"abstract":"<div><div>The fall armyworm (FAW), <em>Spodoptera frugiperda</em> (J. E. Smith, 1797) (Lepidoptera: Noctuidae), presents a significant threat to global agricultural production. While chemical pesticides have traditionally been effective in controlling such pests, the increasing demand for organic products has spurred the search for environmentally friendly alternatives. Biopesticides have emerged as a promising solution, offering efficacy while minimizing health and environmental risks associated with synthetic chemicals. In the present study, the insecticidal potential of the cell-free supernatant (CFS) from <em>Photorhabdus luminescens</em>, sourced from <em>Heterorhabditis indica</em>, was evaluated against third-instar <em>S. frugiperda</em> larvae through <em>in vitro</em> bioassays. Gas chromatography-mass spectrometry (GC-MS) analysis identified key biomolecules in the CFS, which were further studied for their interaction with <em>S. frugiperda</em> protein targets using <em>in silico</em> methods. Additionally, a nanoemulsified formulation of the CFS was developed <em>via.,</em> ultrasonication, demonstrating stability with droplet diameters <200 nm over 90 days. Characterization through dynamic light scattering (DLS) and transmission electron microscopy (TEM) confirmed the nanoformulation's regular distribution and spherical shape, with an average diameter of 115.9 ± 5.1 nm and a zeta potential of 65 ± 1.8 mV. The CFS exhibited significant insecticidal activity, resulting in 80% mortality with a half-maximal lethal concentration (LC<sub>50</sub>) of 593.62 ppm. Furthermore, the nanoformulation displayed strong control efficacy against third-instar <em>S. frugiperda</em> larvae, achieving an LC<sub>50</sub> of 578.77 ppm after 48 h of treatment. These findings highlight the potential of utilizing CFS from <em>P. luminescens</em> and its nanoformulation as sustainable and effective insecticide with reduced environmental impact, sustained release properties, and enhanced pest control capabilities.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107057"},"PeriodicalIF":2.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-28DOI: 10.1016/j.cropro.2024.107055
Abbas Nasiri Dehsorkhi , Seyed Ahmad Ghanbari , Hassan Makarian , Mohamamd Reza Asgharipour
{"title":"Spatial relationship of weeds with soil properties in wheat field using geostatistical methods","authors":"Abbas Nasiri Dehsorkhi , Seyed Ahmad Ghanbari , Hassan Makarian , Mohamamd Reza Asgharipour","doi":"10.1016/j.cropro.2024.107055","DOIUrl":"10.1016/j.cropro.2024.107055","url":null,"abstract":"<div><div>A field experiment was conducted during the agricultural years 2019 and 2020, using a network system with a distance of 2 × 2 m. At each network node, soil, wheat grain yield, seed bank, black grass and wild barley weed density, and biomass were measured. Soil components with high consumption had 0%–55.9% spatial correlation. The association between soil pH and EC was 50.0%–75.2%. The soil texture correlation was 0%–66.5%. The prevalence of black grass and wild barley weeds showed a patchy or clustered dispersion pattern. The kriging interpolated maps also showed a substantial relationship between the first-year seed bank and weed seedling distribution patterns and the second-year weed distribution patterns. Black grass and wild barley weeds were more prevalent in fields with low potassium and soil pH, indicating a spatial connection with soil nitrogen. Wheat grain yield in the field was fragmented, with a 50.2% spatial correlation. In the initial and subsequent years, black grass weed density correlated with grain yield inverse by 81.8% and 78.5%, respectively. Wild barley weed density and grain yield inverse had 53.2% and 63.9% geographical correlations, respectively. The first year's spatial correlation between grain yield and soil nitrogen was 81.6% and the second 80.6%. The association between grain yield and soil phosphorus was 79.4% in the first year and 85.8% in the second. This study suggests that knowing the spatial distribution of soil nutrients and weeds in a field can help determine the best wheat crop management strategy.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"189 ","pages":"Article 107055"},"PeriodicalIF":2.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-28DOI: 10.1016/j.cropro.2024.107056
Md Asaduzzaman , Sujeewa Rathnayake , Michael Hopwood , Adam Shephard , Hanwen Wu , Graham Charles
{"title":"Germination ecology, emergence dynamics, and competition in feathertop Rhodes grass (Chloris virgata Sw.): Implications for effective control strategies","authors":"Md Asaduzzaman , Sujeewa Rathnayake , Michael Hopwood , Adam Shephard , Hanwen Wu , Graham Charles","doi":"10.1016/j.cropro.2024.107056","DOIUrl":"10.1016/j.cropro.2024.107056","url":null,"abstract":"<div><div>Feathertop Rhodes grass (<em>Chloris virgata</em> Sw.) is a summer growing grass weed that is invading farming land in southern Australia, being favoured by conservation farming systems and weed management using a narrow range of herbicides. Improved understanding of the biology of this species will be important for its effective management. A series of experiments on seed germination, dormancy release and emergence pattern were conducted under laboratory, glasshouse, and field conditions at Wagga Wagga Agricultural Institute. Seed of feathertop Rhodes grass exhibited post-harvest dormancy but germinated after a 3-month after-ripening period. Soil moisture was critical for the emergence of feathertop Rhodes grass in both a sandy loam and heavy clay soil. Higher emergence levels occurred in the sandy loam, but seedling survival was higher in the heavy clay soil. Seeds buried at shallower depths had a high probability of emergence and emerged within 1–3 days, with more than 70% of seed emerging within 7 days from burial at depths of 0- and 2-cm. Seed of feathertop Rhodes grass can germinate early in spring in southern NSW but compete poorly when emerging in an established cereal crop. In a fallow situation, there can be staggered emergence of feathertop Rhodes grass, triggered by the rainfall events. Our results indicate that feathertop Rhodes grass might not be a problem in cereal cropping in southern NSW. Effective management should focus on winter and summer fallows. Strategic cultivation could be a useful control tactic for feathertop Rhodes grass management. Exposure to either paraquat or glufosinate herbicides reduced seed viability, depending on the application timing. Our study provides important information on the growth, development, and seed biology of feathertop Rhodes grass that will contribute to the development of a more effective management program for this weed in southern Australia.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107056"},"PeriodicalIF":2.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-27DOI: 10.1016/j.cropro.2024.107051
Sapunii Sebastian , Karuna Kalita
{"title":"Development and field performance assessment of roller rake weeder","authors":"Sapunii Sebastian , Karuna Kalita","doi":"10.1016/j.cropro.2024.107051","DOIUrl":"10.1016/j.cropro.2024.107051","url":null,"abstract":"<div><div>Hand weeding is labor-intensive and time-consuming. Although mechanical weed extraction has the potential to save time and money on labor, several obstacles prevent its broad adoption, especially in rural and hilly areas. Small-scale farmers find power weeders to be expensive and impractical, and the haphazard planting of crops further restricts the machine's usefulness. Labor-saving, regionally tailored weed control methods are urgently needed, particularly in isolated highland areas. Owing to the numerous drawbacks of the current weeder, a new weeder called ‘<em>roller rake weeder’</em> consisting of a fixed rake and a roller with spikes as soil-engaging components was developed as an alternative to solve the issues. The developed machine was tested in the field for about a month. It was observed that the speed of operation was found to be optimal ranging from 1.9 to 2.1 km h<sup>−1</sup> with an effective cutting width of 140 mm. The actual field capacity ranged from 0.038 ha h<sup>−1</sup> to 0.04 ha h<sup>−1</sup>, while the weeding efficiency reached 88%–95% surpassing the existing tools. The labor requirement was found to be 28.6–34.5 man-hours ha<sup>−1</sup>, while the average force required for forward and backward strokes during operation was observed to be 68.4 N and 23.2 N, respectively.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"189 ","pages":"Article 107051"},"PeriodicalIF":2.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-26DOI: 10.1016/j.cropro.2024.107041
Yi-bo Zhang , Han Li , Peng Han , Xiao-cao Tian , Hao Wang , Li-li Geng , Jie Zhang , Wan-xue Liu , Fang-hao Wan , Raul-Narciso Guedes , Desneux Nicolas , Gui-fen Zhang
{"title":"Monitoring the insecticide susceptibility of a newly introduced invasive species, Tuta absoluta (Meyrick), in China","authors":"Yi-bo Zhang , Han Li , Peng Han , Xiao-cao Tian , Hao Wang , Li-li Geng , Jie Zhang , Wan-xue Liu , Fang-hao Wan , Raul-Narciso Guedes , Desneux Nicolas , Gui-fen Zhang","doi":"10.1016/j.cropro.2024.107041","DOIUrl":"10.1016/j.cropro.2024.107041","url":null,"abstract":"<div><div>The South American tomato leaf miner, <em>Tuta absoluta</em> (Meyrick) (Lepidoptera: Gelechiidae), is a newly introduced invasive destructive pest that poses a major threat to tomato production in China. Chemical control is a predominantly measure for controlling this pest. Monitoring of insecticide efficacy is the basic tool for proactive evidence-based resistance management. As a new invasive species, the insecticide susceptibility of <em>T. absoluta</em> to main insecticides has been uncertainty so far in China. Here, we investigated the insecticide susceptibilities of seven populations (Yunnan, Guizhou, Sichuan, Gansu, Inner Mongolia, Shanxi and Xinjiang) of <em>T. absoluta</em> across China. The response of these populations was evaluated through laboratory bioassays with the main insecticides used for <em>T. absoluta</em> control: chlorantraniliprole, chlorpyrifos, indoxacarb, emamectin benzoate, spinosad and <em>Bacillus thuringiensis</em>. Analysis of the results showed the largest LC<sub>50</sub> values for chlorpyriphos were generated in populations from Shanxi and Yunnan, resulting in 22.59-fold and 11-fold differences, respectively, compared with the values generated in the most susceptible population (Inner Mongolia). The LC<sub>50</sub> values observed for chlorantraniliprole in Shanxi and Gansu were 24.66-fold and 20.83-fold greater, respectively, than the LC<sub>50</sub> value observed in the most susceptible population (Guizhou). However, almost all populations of <em>T. absoluta</em> presented low resistance levels to indoxacarb, emamectin benzoate, spinosad and <em>B. thuringiensis</em>. Our study sheds light on most insecticides can provide sufficient control of <em>T. absoluta</em> in China, however, scientific selection and use of insecticides, such as rotational use of insecticides of different modes of action classes, also need to adopt as soon as possible, because a moderate level of resistance has already been observed somewhere on chlorantraniliprole and chlorpyrifos.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"189 ","pages":"Article 107041"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Crop ProtectionPub Date : 2024-11-26DOI: 10.1016/j.cropro.2024.107052
Francisco J. Cividanes , Terezinha M. dos Santos-Cividanes , José C. Barbosa , Sérgio Ide
{"title":"Weed plant species associated with the population increase of carabid beetles","authors":"Francisco J. Cividanes , Terezinha M. dos Santos-Cividanes , José C. Barbosa , Sérgio Ide","doi":"10.1016/j.cropro.2024.107052","DOIUrl":"10.1016/j.cropro.2024.107052","url":null,"abstract":"<div><div>Carabid beetles (Coleoptera: Carabidae) are important biocontrol agents of insect pests and weeds worldwide. Despite this, few studies have investigated weed seed-consuming carabids in Latin America. We studied the relationship between the abundance of weed plants and the population size of carabids in five agroecosystems located in four municipalities (Jaboticabal, Guaíra, Gavião Peixoto, and Descalvado) in northeastern São Paulo state, Brazil. The weed plants comprised a strip of weedy vegetation between a forest fragment, a soybean/maize field, or an orange orchard. Carabid beetles and weeds were sampled with pitfall traps and a square metal frame, respectively, and multiple regression analysis was used to associate the carabids and weed plants. Of the 921 individuals of 18 carabid species captured, <em>Abaris basistriata</em> Chaudoir, <em>Selenophorus seriatoporus</em> Putzeys, <em>Pentacomia cupricollis</em> (Kollar), and <em>Tetracha brasiliensis</em> (Kirby) were among the most abundant. Regarding weeds, 27 species from 11 families were identified, mostly members of the families Asteraceae and Poaceae. This study indicated that weed species can contribute to population increases of predominantly granivorous and predatory carabid beetles. The family Poaceae showed the highest association with increases in populations of carabid beetles. <em>Cenchrus echinatus</em> L., <em>Melinis repens</em> (Willd.) Zizka, and <em>Urochloa decumbens</em> (Stapf) (Poaceae), <em>Chamaesyce hirta</em> (L.) Millsp. (Euphorbiaceae), <em>Cyperus rotundus</em> L. (Cyperaceae), and <em>Richardia brasiliensis</em> Gomes (Rubiaceae) were most frequently correlated with carabids. These findings suggest lines of research on carabids that consume weed seeds and on weeds that provide refuge for carabids. Progress in these areas is essential for sustainable weed management.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":"190 ","pages":"Article 107052"},"PeriodicalIF":2.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}