E. Dieng, S. Ndiaye, Assa Balayara, Papa Djibril Faye, E. V. Coly, Pape Mbackésembene
{"title":"Parasitoids of fruit flies (Diptera: Tephritidae) and their distribution along mango production zones in Senegal","authors":"E. Dieng, S. Ndiaye, Assa Balayara, Papa Djibril Faye, E. V. Coly, Pape Mbackésembene","doi":"10.5958/0974-4541.2020.00001.6","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00001.6","url":null,"abstract":"In this study, the diversity and distribution of fruit fly parasitoids and their reservoir plants along a latitudinal gradient in three zones of mango production in Senegal were reported. Fruits were collected from wild and cultivated plants at 15 different sites (5 sites per production zone) over a period of seven months. In the northern and middle zone (Niayes and Centre). Our results showed a significant contrast in the distribution of parasitoid species between zones and fruit types. In Niayes, Psytallia cosyrae (Hymenoptera: Braconidae) was the dominant species, while in Centre it was P. cosyrae and Diachasmimorpha spp. (Hymenoptera: Braconidae). The native plant species that were hosting the highest densities of fruit flies and parasitoids were Capparis tomentosa, Ziziphus mauritiana, Kedrostis hirtella, and Momordica balsamina. In the southern zone (Casamance), we measured parasitism rate by the introduced parasitoid Fopius arisanus (Hymenoptera: Braconidae) and found an average of 5% parasitism rate in mango orchards.There, the most abundant parasitoids found were F. caudatus and F. sylvestri. Additional research is needed to characterize the factors affecting the effectiveness of biological control with hymenopteran parasitoids and determine the role played by native host plants in the control of fruit flies.","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134330591","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":"Incidence of major pests of okra in relation to weather factors and cropping systems","authors":"G. Srinivas, Sushil Kumar","doi":"10.5958/0974-4541.2020.00008.9","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00008.9","url":null,"abstract":"Incidence of major pests (shoot and fruit borer, Earias vittella; leafhopper, Amrasca biguttula biguttula; whitefly, Bemisia tabaci and red spider mite, Tetranychus urticae) of okra (cv. AO-1) was studied in two cropping systems (organic and conventional) in relation to weather parameters at Navsari Agricultural University, Navsari Gujarat, India during 2017-18. The investigation indicated peak shoot and fruit borer population (3.88 and 3.27 larvae/plant) and its associated fruit damage (39.56 and 35.60 %) during 20th week after germination (WAG) (11 SMW) indicating significant positive association with temperature (minimum and average), relative humidity (evening and average), bright sunshine in both the farming systems whereas, positive association with wind velocity in conventional farming system was also reported. Peak leafhopper population (11.66 and 12.70/ leaf) was noticed at 6 WAG (15 SMW) exhibiting significant positive correlation with maximum temperature. Adult whitefly population remained highest (3.07 and 3.61/ leaf) during 11 WAG (20 SMW) exhibiting significantly positive correlation with average temperature and bright sunshine in both the farming systems. Red spider mite population peaked (23.69 and 27.52 /2 cm2 leaf area) during 13 WAG (22 SMW) and 11 WAG (20 SMW) at organic and conventional farms, respectively which in turn indicated significant positive association with minimum and average temperature, evening and average relative humidity and wind velocity","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126356103","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":"Response of fall armyworm, Spodoptera frugiperda (J. E. Smith) to different pheromone blends under Indian environmental conditions","authors":"K. Bhanu, B. Mamatha, B. M. Vinutha","doi":"10.5958/0974-4541.2020.00009.0","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00009.0","url":null,"abstract":"Fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) is a pest of maize native to America that invaded India recently in 2018. Field and laboratory experiments were conducted in Bengaluru, India to find a suitable pheromone blend for trapping males of fall armyworm. The field evaluation studies showed that pheromone blend with Z-9-tetradecenyl acetate, Z-11-hexadecenyl acetate and Z-7-dodecenyl acetate in 87: 12.5 : 0.5 ratio attracted and trapped statistically significant number of male moths compared to other five blends using funnel traps. The laboratory evaluation of 6 different pheromone blends using Electroantennogram (EAG) with male antenna of S. frugiperda elicited statistically on par responses with each other. From the different dosage field study with optimum attracting blend, it was found that 2 mg loading trapped highest number of moths and was statistically on par with 3 mg pheromone lure. Further monitoring study carried out under farmer's field condition with 2 mg loading of pheromone blend with Z-9-tetradecenyl acetate, Z-11-hexadecenyl acetate and Z-7-dodecenyl acetate in 87: 12.5: 0.5 ratio found to be more effective in attracting and trapping male moths up to 60 days.","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125458486","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":"Visual assessment of morphological changes in female reproductive system of Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)","authors":"S. Helen, A. Verghese, P. Jayanthi","doi":"10.5958/0974-4541.2020.00013.2","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00013.2","url":null,"abstract":"Reliable methods are needed to ascertain sexual maturity of field captured tephritid fruit flies. To provide such a tool for female Oriental fruit flies, this study documented the changes in ovarian development at different age intervals (1, 3, 6, 11, 15, 18, 20, 21, 23, 26, 30, 35, 40, 45, 52, 55 and 78 day old) of Bactrocera dorsalis (Hendel). As fly ages, the differences in morphological characters of female reproductive system were assessed visually and the ovarian maturation process was broadly classified into various developmental stages namely previtellogenesis (stage 1 and 2); vitellogenesis (stage 3 and 4), appearance of mature egg (stage 5) and post-oviposition (stage 6). Based on visual assessment of ovarian characters, from the day 1-6, the flies were in previtellogenic stage; from the day 7-11, the flies were in vitellogenic stage, and from the day 12-15, the flies were in late vitellogenic stage. From the day 15 onwards matured follicles were observed on the terminal end of the fly ovary. At the day 18, presence of opaque mature terminal oocyte (matured egg) was noticed in the flies confirming sexual maturity. This classification based on visual assessment of morphological changes in the ovary would help us determine the age of field collected female B. dorsalis","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126359810","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":"Evaluation of fungicides for the management of chrysanthemum white rust caused by Puccinia horiana Henn.","authors":"M. Sriram, Sandeep Kumar G.M, M. Kumawat","doi":"10.5958/0974-4541.2020.00023.5","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00023.5","url":null,"abstract":"Chrysanthemum white rust is a quarantine pest in many countries. In India, this invasive disease was first reported in Udagamandalam in Tamil Nadu in 2012 and has spread to chrysanthemum growing areas in Tamil Nadu and Karnataka. The disease turns epidemic when the night temperature is lower than 19-20°C. Since the disease is newly emerging in India, an attempt was made to evaluate fungicides for the management of this disease. Field evaluation for two years during 2015-16 and 2016-17 was carried out. Spraying chlorothalonil at 0.2% immediately after the first appearance of the rust pustules and continuing at fortnightly interval during Dec – Jan reduced the infection and prevented further spread. In 2015-16, the PDI in chlorothalonil treated plots did not rise above 10 PDI while in control it reached 78.8 PDI. In 2016-17 also, chlorothalonil was found effective with less than 10 PDI while in control it reached above 70 DPI. The next best chemical was propiconazole with 20 PDI. Myclobutanil which was found effective in Europe was not found effective in our study.","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129727563","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":"Pathogenic fungi associated with storage rot of Colocasia esculenta and evaluation of bioformulations against the pathogen","authors":"P. Bora, K. Saikia, Shenaz Ahmed","doi":"10.5958/0974-4541.2020.00021.1","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00021.1","url":null,"abstract":"Taro (Colocasia esculenta) is a major tropical tuber crop widely cultivated in India. Post-harvest loss of C. esculenta root and tubers had emerged as one of the major constraints in the production of taro and might have detrimental effects on food security. Our study on storage rot of C. esculenta tubers revealed that Fusarium oxysporum was mostly responsible for the post-harvest loss of the crop. Pathogenicity test confirmed its role as the causal agent of storage rot in taro. The pathogen was further confirmed based on molecular identification by amplifying ITS region of the rDNA using ITS1 and ITS4. Based on BLST analysis it showed maximum homology (95-99%) with F. oxysporum. Efficacy of a few microbial antagonists were tested against the pathogen in vitro which revealed that the treatment with combination of Trichoderma viride + Pseudomonas fluorescens + Bacillus thuringiensis showed highest inhibition of F. oxysporum (94.05%) followed by treatment of T. viride alone (65.17%).","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130738487","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}
D. Niruba, M. Chandrasekaran, C. Justin, A. Kalyanasundaram
{"title":"Bioefficacy of insecticides and plant based oils against red spider mite, Tetranychus urticae (Koch) (Acari: Tetranychidae) in okra","authors":"D. Niruba, M. Chandrasekaran, C. Justin, A. Kalyanasundaram","doi":"10.5958/0974-4541.2022.00040.6","DOIUrl":"https://doi.org/10.5958/0974-4541.2022.00040.6","url":null,"abstract":"","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123055908","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":"In vitro and field screening of okra cultivars against Fusarium wilt disease","authors":"B. Gowda, P. R. Ramesh, M. Saifulla","doi":"10.5958/0974-4541.2020.00020.x","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00020.x","url":null,"abstract":"","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117098586","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":"Bionomics of tortoise beetle, Cassida circumdata Herbst: An emerging pest of water spinach in northern and eastern India","authors":"J. Halder, A. Rai","doi":"10.5958/0974-4541.2020.00004.1","DOIUrl":"https://doi.org/10.5958/0974-4541.2020.00004.1","url":null,"abstract":"","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129719966","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":"In-vitro compatibility of entomopathogenic fungus, Lecanicillium lecanii (Zimm.) Zare and Gams with insecticides and fungicides","authors":"Tejaswi G. Gowda, O. P. R. Rani","doi":"10.5958/0974-4541.2022.00036.4","DOIUrl":"https://doi.org/10.5958/0974-4541.2022.00036.4","url":null,"abstract":"","PeriodicalId":324980,"journal":{"name":"Pest Management in Horticultural Ecosystems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130533812","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}