Crop Protection最新文献_第5页

Unraveling the impact of greenhouse pepper resistance on biological performance of the broad mite Polyphagotarsonemus latus (Acari: Tarsonemidae) 揭示温室辣椒抗性对宽螨Polyphagotarsonemus latus（Acari: Tarsonemidae）生物学表现的影响

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-13 DOI: 10.1016/j.cropro.2024.106899

{"title":"Unraveling the impact of greenhouse pepper resistance on biological performance of the broad mite Polyphagotarsonemus latus (Acari: Tarsonemidae)","authors":"","doi":"10.1016/j.cropro.2024.106899","DOIUrl":"10.1016/j.cropro.2024.106899","url":null,"abstract":"<div>The broad mite, Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae) is a highly significant pest in tropical and subtropical regions, with a wide host range that encompasses over 60 plant families. In particular, it can be a major and economically damaging pest on pepper plants, causing significant losses to the crop. The life table parameters of P. latus were determined under laboratory conditions to evaluate the susceptible and resistant cultivars of greenhouse pepper among 14 pepper cultivars, including Selva, Clavesol, Kamus, Chidem, Sympathy, Sven, Kamro, Lumos, Caoba, Bellisa, Sunset, Atlantic D90, Atlantic G50, and Atlantic P5001. The total pre-adult period was significantly different on the pepper cultivars tested, in which the shortest and longest duration was recorded on Atlantic P5001 (5.02 days) and Atlantic G50 (5.94 days), respectively. Adult longevity and total life span had significant differences among pepper cultivars, in which the longest durations were observed on Kamus (21.02 and 26.36 days, respectively). The population growth parameters, including the gross reproductive rate (GRR), net reproductive rate (R0), intrinsic rate of increase (r), finite rate of increase (λ), and mean generation time (T), as well as the fecundity of the broad mite exhibited significant differences among the cultivars tested. Specifically, the maximum and minimum values of the intrinsic rate of increase (r) were observed in Lomus (0.319 day−1) and Sunset (0.242 day−1), respectively. The gross reproductive rate (28.33 eggs/individual) and net reproductive rate (27.18 eggs/individual) in the Kamus cultivar were significantly higher than those in the other cultivars. Our results indicated that among the pepper cultivars, Sunset, Sympathy, Chidem, and Clavesol were more resistant to P. latus compared with the others.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083269","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}

引用次数: 0

Assessing the effectiveness of selected reduced-risk insecticides and malathion on blueberry gall midge (Diptera: Cecidomyiidae) and key parasitoids 评估选定的低风险杀虫剂和马拉硫磷对蓝莓瘿蚊（双翅目：瘿蚊科）和主要寄生虫的效果

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-12 DOI: 10.1016/j.cropro.2024.106890

{"title":"Assessing the effectiveness of selected reduced-risk insecticides and malathion on blueberry gall midge (Diptera: Cecidomyiidae) and key parasitoids","authors":"","doi":"10.1016/j.cropro.2024.106890","DOIUrl":"10.1016/j.cropro.2024.106890","url":null,"abstract":"<div>The blueberry gall midge, Dasineura oxycoccana, is a major blueberry pest in Florida and North America, primarily controlled with insecticides. However, their efficacy on D. oxycoccana and impact on natural enemies are poorly documented. We compared the effects of seven reduced-risk insecticides with malathion on larval and adult D. oxycoccana in laboratory bioassays. Acetamiprid showed the highest larval mortality, similar to malathion. Imidacloprid was effective after 2 h, while spirotetramat was effective after 3 h. On adults, cyantraniliprole and acetamiprid were as effective as malathion. Flupyradifurone began showing comparable lethality at 3 h, while spirotetramat, imidacloprid, and tolfenpyrad began inducing comparable mortality 6 h post-application. The same insecticides were evaluated for their effects on D. oxycoccana and their key parasitoids in two southern highbush blueberry plantings in North-central and Central Florida. A wetter-spreader adjuvant was added to spirotetramat as a ninth treatment. Spirotetramat + adjuvant effectively reduced adults and larval densities by up to 100% in the first year and adults by 59% and larvae by 56% in the second year. Acetamiprid reduced adult densities by 65% in 2019. Spinetoram reduced adults by 77% and larvae by 100% in 2019, while flupyradifurone reduced adults by 77% and larvae by 37% in 2020. These insecticides had minimal adverse effects on Platygaster spp. and overall parasitoid densities for both years. Based on these findings, there is potential for incorporating spirotetramat + adjuvant, flupyradifurone, spinetoram, or acetamiprid into a strategic rotational program with minimal impacts on natural enemies of D. oxycoccana.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141984883","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}

引用次数: 0

Assessing the effect of provitamin a on maize field resistance to aflatoxin and fumonisin contamination 评估维生素 a 对玉米田抗黄曲霉毒素和伏马菌素污染的影响

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-11 DOI: 10.1016/j.cropro.2024.106892

{"title":"Assessing the effect of provitamin a on maize field resistance to aflatoxin and fumonisin contamination","authors":"","doi":"10.1016/j.cropro.2024.106892","DOIUrl":"10.1016/j.cropro.2024.106892","url":null,"abstract":"<div>Vitamin A deficiency in sub-Saharan Africa is mainly being addressed through crop biofortification. Several high provitamin A (PVA) maize varieties have been released as part of these measures. However, these varieties are grown in areas where Aspergillus ear rot (AER) and Fusarium ear rot (FER) frequently occur, leading to contamination with mycotoxins, which in turn reduce the yield and grain quality. Chronic mycotoxin exposure leads to serious public health problems. Therefore, PVA maize varieties should be resistant to mycotoxin contamination. In a previous study, we generated 120 PVA hybrids by crossing 60 PVA inbreds and two testers with contrasting PVA content. Several inbreds resistant to aflatoxin were detected through laboratory-based kernel screening assays. In the current study, 21 PVA inbred lines with varying carotenoid content inoculated with toxigenic isolates of A. flavus and F. verticillioides were evaluated in field trials conducted at two locations in Nigeria for resistance to ear rots and mycotoxin production. Inbred lines resistant to AER, FER, aflatoxin and fumonisin contamination were identified. High PVA inbred lines were less susceptible to the ear rots, aflatoxin, and fumonisin than those with low PVA content. There were negative correlations between PVA content and each of AER (r = −0.28, P < 0.0001), FER (r = −0.37, P < 0.0001), aflatoxin (r = −0.15, P < 0.05), and fumonisin (r = −0.27, P < 0.0001). Three promising inbred lines were resistant to both aflatoxin and fumonisin. Moreover, the inbred TZI1715 combined resistance to AER, FER, aflatoxin, and fumonisin with desirable general combining ability for high β-carotene and total PVA content. These results suggest that the PVA biofortified maize developed to address vitamin A deficiency can also contribute to reduced exposure to aflatoxin and fumonisin.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979868","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}

引用次数: 0

Assessment of florpyrauxifen-benzyl in water-seeded rice systems as affected by application timing 评估水稻水播系统中氟啶脲苄酯受施用时间的影响

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-10 DOI: 10.1016/j.cropro.2024.106886

{"title":"Assessment of florpyrauxifen-benzyl in water-seeded rice systems as affected by application timing","authors":"","doi":"10.1016/j.cropro.2024.106886","DOIUrl":"10.1016/j.cropro.2024.106886","url":null,"abstract":"<div>Florpyrauxifen-benzyl (FPB) is a novel auxin mimic rice herbicide used to control selected grasses, sedges, and broadleaves. Field experiments were conducted in 2020–2022 to 1) characterize the effects of FPB on rice crop safety and weed control when applied alone or in a mixture, 2) determine the FPB application timing to optimize smallflower umbrella sedge (SMF) control, and 3) evaluate the effect of late season application on rice flower sterility. In the first study, FPB was applied alone at 15, 30, and 60 g ai ha−1 and in mixture with bispyribac-sodium, penoxsulam, and propanil. FPB applied alone at 30 g ha−1 at 4–5-leaf (LF) rice stage controlled more than 80% of watergrasses, ricefield bulrush, and SMF and more than 99% of all broadleaf weeds at 28 days after treatment (DAT). The mixture treatments of FPB plus bispyribac-sodium applied at maximum use rate had the greatest grass weed control whereas, FPB plus propanil at the maximum use rate provided the greatest sedge control. In the second study, FPB at 40 g ha−1 was applied at 1-LF, 10-, 15-, 20-, and 25-cm tall SMF, where treatments controlled 95%, 86%, 89%, 87%, and 85% of SMF at 42 DAT, respectively. In the third study, FPB at 40 and 80 g ha−1 rate was applied at rice panicle initiation (PI) and 50% flowering (FL) growth stages. While the weed control was more than 90% at 42 DAT for all applications, the FL stage application caused 26% and 35% rice panicle blanking at 40 and 80 g ha−1 rate, respectively. This research suggests, the window of FPB application should be from 2-LF rice to rice PI stage to ensure crop safety and highest weed control.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141984881","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}

引用次数: 0

Chitinolytic microorganisms for biological control of plant pathogens: A Comprehensive review and meta-analysis 用于植物病原体生物防治的甲壳素分解微生物：综合综述与荟萃分析

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-10 DOI: 10.1016/j.cropro.2024.106888

{"title":"Chitinolytic microorganisms for biological control of plant pathogens: A Comprehensive review and meta-analysis","authors":"","doi":"10.1016/j.cropro.2024.106888","DOIUrl":"10.1016/j.cropro.2024.106888","url":null,"abstract":"<div>Large-scale application of chemical pesticides and insecticides over the years have led to resistance to these chemicals, along with a reduction in crop yield, increase in production cost as well as adverse effects on the environment and human health. In this scenario, there is a need to implement some other techniques to prevent crop losses due to pests and other pathogens. Biological control seems to be a plausible approach to remedy this situation and practice sustainable agriculture through integrated pest management. A feasible way to control nematodes, insects and fungal pathogens can be through the use of chitinase-producing microorganisms. Chitin makes up the exoskeleton of insects, cell wall of fungi, and eggshells of nematodes. Chitinase-producing microorganisms can extensively damage and even kill the pathogens. Therefore, chitinolytic bacteria and fungi might be potential candidates for the biocontrol of numerous plant pathogens. In this review, we aim to discuss the available literature on chitin degrading microorganisms, chitinase enzymes and their importance in biological control. A meta-analysis has been performed with data from the last 2 decades to assess the efficacy of different microbial chitinases on biocontrol of pathogens and a forest plot was produced to conclude the variations among different studies performed so far.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142040291","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}

引用次数: 0

Neocamarosporium betae causing leaf spot and stem necrosis disease on Chenopodium quinoa in Shanxi Province, China 引起中国山西省藜麦叶斑病和茎坏死病的 betae 新赤霉病菌

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-10 DOI: 10.1016/j.cropro.2024.106889

{"title":"Neocamarosporium betae causing leaf spot and stem necrosis disease on Chenopodium quinoa in Shanxi Province, China","authors":"","doi":"10.1016/j.cropro.2024.106889","DOIUrl":"10.1016/j.cropro.2024.106889","url":null,"abstract":"<div>Quinoa (Chenopodium quinoa) is a pseudocereal crop, and has been widely cultivated in China with excellent sources of nutrients, amino acids, and vitamins. During the inflorescence emergence stage to the grain-filling stage, Neocamarosporium betae leaf spot and stem necrosis of quinoa (NLSQ) as a new emerging disease was observed in Shanxi Province of China. NLSQ usually infected the leaves and then gradually spread towards to the stems. Typical symptoms included tan to brown lesions and with many black pycnidia, leading to lodging, leaf abscission, and grain unfilling. Based on morphological characteristics, phylogenetic analyses, and pathogenicity tests, the pathogen was identified as N. betae. The morphological characterizations of N. betae from quinoa were pycnidial conidiomata, hyaline conidiogenous cell, and smooth hyaline aseptate conidia. At 2–6 days postinoculation, the typical symptoms induced by inoculations of N. betae on leaves and stems of quinoa. To our knowledge, this study firstly reported that N. betae was the pathogen of NLSQ in China. The findings of this current study will contribute to developing the disease diagnosis and management.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979633","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}

引用次数: 0

Calcium chloride seed priming: A dual-action strategy for enhancing Cyrtorhinus lividipennis attraction and deterring brown planthopper infestations in rice 氯化钙种子处理：提高水稻对红蜘蛛的吸引力和遏制褐飞虱侵扰的双重策略

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-06 DOI: 10.1016/j.cropro.2024.106879

{"title":"Calcium chloride seed priming: A dual-action strategy for enhancing Cyrtorhinus lividipennis attraction and deterring brown planthopper infestations in rice","authors":"","doi":"10.1016/j.cropro.2024.106879","DOIUrl":"10.1016/j.cropro.2024.106879","url":null,"abstract":"<div>This investigation assessed the impact of calcium chloride (CaCl2) seed priming on the direct and indirect defense mechanisms of rice (Oryza sativa L.) against the brown planthopper (BPH), Nilaparvata lugens (Stål). Our findings revealed that seeds primed with CaCl2 significantly curtailed the survival and developmental rates of BPH nymphs and diminished the honeydew secretion by adult females. The feeding behaviour of BPH on CaCl2-pretreated rice showed an extended non-proboscis handling (np) duration, while the phloem ingestion time (N4-b) and xylem ingestion time (N5) were reduced. Additionally, BPH nymphs exhibited a marked preference for H2O-pretreated plants over CaCl2-primed ones for both feeding and oviposition. Conversely, the natural enemy Cytorhinus lividipennis displayed a heightened preference for preying on BPH nymphs and eggs on CaCl2-primed rice. The treatment with calcium led to an increased release of a diverse range of volatile compounds following BPH infestation, compared to H2O pretreatment. Notably, the volatiles Methyl salicylate and 1-octen-3-ol were identified as the most effective deterrents for BPH and attractants for C. lividipennis, respectively, highlighting their potential role in mediating plant-insect interactions.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141993075","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}

引用次数: 0

SIMKEF – A decision support system to predict the infestation probability of Drosophila suzukii SIMKEF - 预测铃木果蝇侵染概率的决策支持系统

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-06 DOI: 10.1016/j.cropro.2024.106858

引用次数: 0

Control of potato powdery scab with fluazinam, cyazofamid or bupirimate under field conditions in China 在中国田间条件下用氟啶胺、氰霜菌胺或噻虫嗪防治马铃薯白粉病

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-06 DOI: 10.1016/j.cropro.2024.106877

{"title":"Control of potato powdery scab with fluazinam, cyazofamid or bupirimate under field conditions in China","authors":"","doi":"10.1016/j.cropro.2024.106877","DOIUrl":"10.1016/j.cropro.2024.106877","url":null,"abstract":"<div>The soilborne pathogen Spongospora subterranea f. sp., which is subterranean and responsible for powdery scab, poses a serious threat to potato production in China. Single applications of fluazinam, cyazofamid and bupirimate via furrow application or seed dressing during the sowing period and combined application with root irrigation during the tuber initiation stage were assessed for their ability to control powdery scab under field conditions. Three field trials revealed that fluazinam or cyazofamid furrow application at 1500 g a.i. ha−1 during the sowing period combined with root irrigation at 1500 g a.i. ha−1 during the tuber initiation stage significantly reduced the disease incidence and disease index of potato powdery scab, with good control efficacy (58.1–79.4% and 53.1–78.5%, respectively), and provided high potato yields (3.37–5.08 kg m−2 and 3.26–4.88 kg m−2, respectively) and gross revenue for growers. However, due to the low price of potato and high control cost, the two selected promising chemical treatments have few advantages in terms of economic benefits. Overall, considering their control efficacy and economic benefits, fluazinam or cyazofamid furrow application combined with root irrigation treatment could be recommended for integrated powdery scab management, especially for high-value seed potato production in China.</div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141915035","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}

引用次数: 0

Colletotrichum siamense causing leaf spot on Parthenocissus semicordata in China Colletotrichum siamense 在中国半夏上引起的叶斑病

IF 2.5 2区农林科学

Crop Protection Pub Date : 2024-08-06 DOI: 10.1016/j.cropro.2024.106878

引用次数: 0