scholarly journals A review of Tuta absoluta (Lepidoptera: Gelechiidae) host plants and their impact on management strategies

2019 ◽  
pp. 270-278
Author(s):  
Asma Cherif ◽  
François Verheggen
Keyword(s):  
Plant Species ◽  
Host Plants ◽  
Insect Pests ◽  
Integrated Management ◽  
Management Strategies ◽  
Scientific Data ◽  
Tuta Absoluta ◽  
Cultivated Plants ◽  
Solanaceae Species ◽  
Cultivated Plant

Introduction. Tuta absoluta is one of the most harmful insect pests of tomato crops worldwide. While its host plants mainly include Solanaceae species, recent studies suggest that it can lay eggs and develop on a wider range of wild and cultivated plants. No complete list of host plants based on available scientific data exists. Such information is important for those who aim at performing integrated management strategies against this pest, especially when it comes to identify host reservoirs where the species can survive between harvests or avoid insecticide exposure. Literature. We identified cultivated and non-cultivated plant species belonging to Solanaceae, Amaranthaceae, Euphorbiaceae, Cucurbitaceae, Geraniaceae, Fabaceae, Asteraceae and Malvaceae that allow partial or complete egg-imago development. Among them, we found out that most non-Solanaceous plants serve as oviposition sites only (with no larval development possible), and a few of them allow partial life cycle (causing late instars to die prematurely). We also identified a strong cultivar-dependence in the most common cultivated plant species including tomato and potato. Conclusions. We discuss the potential of resistant and genetically modified tomato cultivars, plant chemical compounds and fertilization as components of integrated control strategies of T. absoluta.

Ability of Tuta absoluta (Lepidoptera: Gelechiidae) to develop on alternative host plant species

2015 ◽  
Vol 148 (4) ◽  
pp. 434-442 ◽  
Author(s):  
Thomas Bawin ◽  
David Dujeu ◽  
Lara De Backer ◽  
Frédéric Francis ◽  
François J. Verheggen
Keyword(s):  
Plant Species ◽  
Growth And Development ◽  
Host Plants ◽  
Tuta Absoluta ◽  
Cultivated Plants ◽  
Alternative Host ◽  
Suitable Host ◽  
Survival Sex ◽  
Solanaceae Species ◽  
Solanaceous Plants

AbstractThe tomato leafminer, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae), is a widespread devastating pest reported to develop on economically important solanaceous crops. The characterisation of its host range could help to understand and prevent the dispersion behaviour of the insect in the environment. In this study, the ability of T. absoluta to develop on 12 cultivated or non-cultivated plants including Solanaceae, Amaranthaceae, Convolvulaceae, Fabaceae, and Malvaceae species under laboratory conditions was assessed. For each plant species, we monitored the development times of immature stages, survival, sex ratios, and adult fecundity rates. All the six tested non-solanaceous plants, including Chenopodium Linnaeus (Amaranthaceae), Convolvulus Linnaeus (Convolvulaceae), and Malva Linnaeus (Malvaceae) species, were not able to sustain (i.e., allow growth and development) T. absoluta larvae. Solanum Linnaeus (Solanaceae) species were the most suitable host plants for the pest, but others could be opportunistically colonised with fewer incidences. Tuta absoluta appears to be strongly related to solanaceous plants that would predominantly support self-sustaining field populations. Preventing crop infestation by removing potential host plants in the immediate field vicinity and culture rotations with non-solanaceous crops is of primary importance.

The potential of host plants for biological control of Tuta absoluta by the predator Dicyphus errans

2017 ◽  
Vol 107 (3) ◽  
pp. 340-348 ◽  
Author(s):  
B.L. Ingegno ◽  
V. Candian ◽  
I. Psomadelis ◽  
N. Bodino ◽  
L. Tavella
Keyword(s):  
Plant Species ◽  
Host Plants ◽  
Biocontrol Agent ◽  
Tuta Absoluta ◽  
Generalist Predator ◽  
Economic Threshold ◽  
Black Nightshade ◽  
Companion Plant ◽  
Cultivated Plant ◽  
Exotic Pest

AbstractDicyphus errans (Wolff) has been shown to be a suitable biocontrol agent for Tuta absoluta (Meyrick). This generalist predator shares various host plants with the exotic pest, and these interactions could be exploited to enhance pest control. Therefore, host preference, survival rate and development times of the predator and prey were investigated on crop and non-crop plant species. Among the tested plants, the favourite hosts were Solanum species for T. absoluta, and herb Robert, European black nightshade, courgette and tomato for D. errans. Tuta absoluta accepted the same plant species as hosts for oviposition, but it never developed on herb Robert and courgette in all the experiments. Based on our results, we would suggest the use of courgette and herb Robert in consociation with tomato and as a companion plant, respectively, which may keep pest densities below the economic threshold. Moreover, the omnivorous and widespread D. errans could be a key predator of this exotic pest, allowing a high encounter probability on several cultivated and non-cultivated plant species.

Species composition and host range of fruit-infesting flies (Diptera: Tephritidae) in northern Ghana

2015 ◽  
Vol 35 (03) ◽  
pp. 137-151 ◽  
Author(s):  
K.B. Badii ◽  
M.K. Billah ◽  
K. Afreh-Nuamah ◽  
D. Obeng-Ofori
Keyword(s):  
Host Range ◽  
Plant Species ◽  
Host Plants ◽  
Management Strategies ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Northern Ghana ◽  
Accurate Information ◽  
Wild Host ◽  
Fruit Samples

An important aspect of fruit fly management is accurate information on the species and their host spectrum. Studies were conducted between October 2011 and September 2013 to determine the host range and species diversity of pest fruit flies in the northern savannah ecology of Ghana. Fruit samples from 80 potential host plants (wild and cultivated) were collected and incubated for fly emergence; 65 (81.5%) of the plant species were positive to fruit flies. From records in Africa, 11 plant species were reported to be new hosts to the African invader fly,Bactrocera invadens(Drew, Tsuruta and White, 2005). This study documented the first records ofDacus ciliatus(Loew) andTrirhithrum nigerrimum(Bezzi) in northern Ghana although both species have been previously reported in other parts of the country. Infestation byB. invadenswas higher in the cultivated fruits;Ceratitis cosyradominated in most wild fruits. Cucurbitaceae were mainly infested by three species ofDacusandBactroceracucurbitae, a specialized cucurbit feeder. Among the commercial fruit species, the highest infestations were observed in mango, tomato, sweet pepper and watermelon, whereas marula plum, soursop, tropical almond, sycamore fig, African peach, shea nut, persimmon, icacina and albarillo dominated the wild host flora. The widespread availability of host plants and the incidence of diverse fly species in the ecology call for particular attention to their impact on commercial fruits and the development of sustainable management strategies against these economically important pests in Ghana.

Infectivity and reproduction of Scutellonema bradys on weeds and cultivated plant species

Nematology ◽  
2014 ◽  
Vol 16 (2) ◽  
pp. 175-183
Author(s):  
Darcilúcia Oliveira do Carmo ◽  
Nailson Santos de Almeida ◽  
Jorge Teodoro de Souza
Keyword(s):  
Plant Species ◽  
Ipomoea Batatas ◽  
Host Plants ◽  
Large Numbers ◽  
Cultivated Plant ◽  
Host Status ◽  
Trap Plants ◽  
Heliotropium Indicum ◽  
Relative Infectivity ◽  
Reproduction Factor

The nematode Scutellonema bradys is the main phytosanitary problem of yam (Dioscorea rotundata) in the Brazilian State of Bahia. Little is known about the host range of this nematode in Brazil, especially on weeds and plant species cultivated together with yam. This study aimed at evaluating different plant species to determine their host status to S. bradys and to study the relative infectivity of different stages of the nematode on selected host plants. Among the 48 evaluated plant species, 12 were infected by S. bradys. Yam was considered to be the only good host of the nematode, while Luffa algyptiaca, Momordica charantia, Heliotropium indicum, Vigna unguiculata, Cucurbita pepo, Abelmoschus esculentus, Sicana odorifera, Solanum lycopersicum and Ipomoea batatas were classified as bad hosts because of the relatively low reproduction factor as compared to yam. Crotalaria juncea and Cajanus cajan behaved as trap plants because large numbers of S. bradys penetrated their roots but populations decreased over time. Our results showed that juveniles are more infective than females and these are more infective than males on roots of five host plants. We also demonstrated that S. bradys prefers certain host plants as inferred by their lower reproduction on roots of these hosts. Penetration of juveniles tended to be spread over 16 days after inoculation, whereas for adults it was more concentrated at 8 days after inoculation. These results may be important to plan crop rotation schemes to control the yam nematode.

scholarly journals Antagonistic Interactions Between Fusaria Species and Their Host Plants Are Influenced by Host Taxonomic Distance: A Case Study From Mexico

2021 ◽  
Vol 9 ◽  
Author(s):  
Julieta Benítez-Malvido ◽  
Gerardo Rodríguez-Alvarado ◽  
Mariana Álvarez-Añorve ◽  
Luis D. Ávila-Cabadilla ◽  
Ek del-Val ◽  
...  
Keyword(s):  
Plant Species ◽  
Fungal Pathogens ◽  
Spatial Ecology ◽  
Host Plants ◽  
Rapid Assessment ◽  
Trophic Relationships ◽  
Wild Plants ◽  
Cultivated Plants ◽  
Economic Implications ◽  
Antagonistic Interactions

Interactions between cultivated and wild plants with their fungal pathogens have strong ecological, evolutionary and economic implications. Antagonistic interactions, however, have been scantily studied in an applied context by using ecological networks, phylogeny and spatial ecology concurrently. In this study, we describe for the first time, the topological structure of plant-fungi networks involving species of the genus Fusarium and their native and introduced (exotic) cultivated host plants in Mexico. For this, we based our study on a recent database describing the attack on 75 native and introduced plant species, including 35 species of the genus Fusarium. Host plant species varied in their degree of phylogenetical relatedness (Monocots and Dicots) and spatial geographical distribution. Therefore, we also tested whether or not plant-Fusarium networks are phylogenetically structured and highlighted the spatial correlation between pathogens and their host plants across the country. In general, the pathogen-plant network is more specialized and compartmentalized in closely related taxa. Closely related hosts are more likely to share the same pathogenic Fusarium species. Host plants are present in different ecosystems and climates, with regions having more cultivated plant species presenting the highest number of fusaria pathogens. From an economic standpoint, different species of the same taxonomic family may be more susceptible to being attacked by the same species of Fusarium, whereas from an ecological standpoint the movement of pathogens may expose wild and cultivated plants to new diseases. Our study highlights the relevance of interaction intimacy in structuring trophic relationships between plants and fusaria species in native and introduced species. Furthermore, we show that the analytical tools regarding host distribution and phylogeny could permit a rapid assessment of which plant species in a region are most likely to be attacked by a given fusaria.

scholarly journals Insecticidal and Repellant Activities of Southeast Asia Plants towards Insect Pests: A Review

2020 ◽  
Vol 32 (5) ◽  
pp. 1026-1032
Author(s):  
N.H. Albariman ◽  
S.F. Sabran ◽  
N.W. Othman ◽  
N. Ishak ◽  
A.S. Dheyab ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Plant Species ◽  
Plant Extracts ◽  
Insect Pests ◽  
Cultivated Plants ◽  
Active Constituents ◽  
Plant Pests ◽  
Synthetic Pesticides

Crops are being damaged by several plant pests. Several strategies have been developed to restrict the damage of cultivated plants by using synthetic pesticides and repellants. However, the use to control these insects is highly discouraged because of their risks on humans. Therefore, several alternatives have been developed from plant extracts to protect crops from plant pests. Accordingly, this review focuses on outlining the insecticidal and repellant activities of Southeast Asia plants towards insect pests. Several extracts of plants from Southeast Asia were investigated to explore their insecticidal and repellant activities. Azadiracha indica (neem) and Piper species were highly considered for their insecticidal and repellant activities compared to other plants. This review also addressed the investigation on extracts of other plant species that were reported to exert insecticidal and repellant activities. Most of the conducted studies have been still in the primarily stage of investigation, lacking a focus on the insecticidal and repellant spectrum and the identification of the active constituents which are responsible for the insecticidal and repellant activity.

scholarly journals Assessment of the Current Status of Potyviruses in Watermelon and Pumpkin Crops in Spain: Epidemiological Impact of Cultivated Plants and Mixed Infections

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 138
Author(s):  
Celia De Moya-Ruiz ◽  
Pilar Rabadán ◽  
Miguel Juárez ◽  
Pedro Gómez
Keyword(s):  
Viral Load ◽  
Mosaic Virus ◽  
Plant Species ◽  
Viral Infections ◽  
Current Status ◽  
Cultivated Plants ◽  
Watermelon Mosaic Virus ◽  
Cdna Clones ◽  
Mixed Infections ◽  
Cultivated Plant

Viral infections on cucurbit plants cause substantial quality and yield losses on their crops. The diseased plants can often be infected by multiple viruses, and their epidemiology may depend, in addition to the agro-ecological management practices, on the combination of these viral infections. Watermelon mosaic virus (WMV) is one of the most prevalent viruses in cucurbit crops, and Moroccan watermelon mosaic virus (MWMV) emerged as a related species that threatens these crops. The occurrence of WMV and MWMV was monitored in a total of 196 apical-leaf samples of watermelon and pumpkin plants that displayed mosaic symptoms. The samples were collected from 49 fields in three major cucurbit-producing areas in Spain (Castilla La-Mancha, Alicante, and Murcia) for three consecutive (2018–2020) seasons. A molecular hybridization dot-blot method revealed that WMV was mainly (53%) found in both cultivated plants, with an unadvertised occurrence of MWMV. To determine the extent of cultivated plant species and mixed infections on viral dynamics, two infectious cDNA clones were constructed from a WMV isolate (MeWM7), and an MWMV isolate (ZuM10). Based on the full-length genomes, both isolates were grouped phylogenetically with the Emergent and European clades, respectively. Five-cucurbit plant species were infected steadily with either WMV or MWMV cDNA clones, showing variations on symptom expressions. Furthermore, the viral load varied depending on the plant species and infection type. In single infections, the WMV isolate showed a higher viral load than the MWMV isolate in melon and pumpkin, and MWMV only showed higher viral load than the WMV isolate in zucchini plants. However, in mixed infections, the viral load of the WMV isolate was greater than MWMV isolate in melon, watermelon and zucchini, whereas MWMV isolate was markedly reduced in zucchini. These results suggest that the impaired distribution of MWMV in cucurbit crops may be due to the cultivated plant species, in addition to the high prevalence of WMV.

scholarly journals Biological performance and oviposition preference of tomato pinworm Tuta absoluta when offered a range of Solanaceous host plants

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gerson A. Silva ◽  
Elenir A. Queiroz ◽  
Lucas P. Arcanjo ◽  
Mayara C. Lopes ◽  
Tamiris A. Araújo ◽  
...  
Keyword(s):  
Plant Species ◽  
Host Plants ◽  
Tuta Absoluta ◽  
Green Pepper ◽  
Wild Tomato ◽  
Black Nightshade ◽  
Wide Range ◽  
American Black ◽  
Biological Performance ◽  
Tomato Pinworm

AbstractThe tomato pinworm Tuta absoluta (Lepidoptera: Gelechuidae) is native to South America and has now become the main tomato pest in Europe, Africa and Asia. The wide range of host plants attacked by this pest has been reported as one of the main reasons for the success of this important insect species. However, the information currently available on the biological performance of T. absoluta on Solanaceae has been obtained from a limited number of host species. The Solanaceae family is composed of thousands of species, many of which are potential hosts for T. absoluta. Our results showed that the highest oviposition rates occurred on cultivated tomato plants, potato and wild tomato. The lowest rates occurred on “gilo”, “jurubeba”, green pepper and pepper. The highest survival rates of the immature stages occurred on potato and the lowest on pepper, green pepper and “jurubeba”. Female fertility, following infestation of the different plant species, was highest for insects that developed on tomato or potato and the lowest rates were seen on American black nightshade. The net reproductive rate and the intrinsic growth rate were highest on potato and tomato. Cluster analysis grouped tomato and potato as highly susceptible to attack, American black nightshade, juá, eggplant, gilo and wild tomato as moderately susceptible, whilst pepper, green pepper and jurubeba were categorized as resistant to T. absoluta. These results clearly demonstrate that the choice of solanaceous host plant species has a direct impact on the fitness parameters of the tomato pinworm as well as survival potential, dispersion and establishment at new sites. These results are important for the planning of integrated pest management strategies.

scholarly journals New records of host plants used by a weaver ants Camponotus textor Forel, 1899 (Hymenoptera: Formicidae)

2016 ◽  
Vol 1 (1) ◽  
pp. 111-116
Author(s):  
Jean Carlos Santos ◽  
Jonas José Mendes Aguiar ◽  
Tatiana Rosa Alves ◽  
Wanessa Rejane Almeida ◽  
Kleber Del-Claro
Keyword(s):  
Plant Species ◽  
Tree Species ◽  
Host Plants ◽  
Field Survey ◽  
New Records ◽  
Insect Pests ◽  
Phytophagous Insect ◽  
Brazilian Cerrado ◽  
Weaver Ants ◽  
Weaver Ant

Weaver ants nest on plants but the extent of such associations is unknown for many species. Literature records of weaver ant host plants from 1945 to 2016 showed that Camponotus textor Forel, 1899 (= Camponotus senex), the Brazilian savanna weaver ant, was recorded on 17 plant species belonging to 11 families. Our field survey recorded nine plant species in eight families at Brazilian Cerrado. Overall, we expanded the list to a total of 24 host plant species and 14 families, including economically important tree species as mango, citrus, and jambo trees. Such host plants could be used to augment the establishment of weaver ants, facilitating their role in biocontrol as deterrents of phytophagous insect pests of economically important plants.

Biology and integrated management of wheat stem sawfly and the need for continuing research

2011 ◽  
Vol 143 (2) ◽  
pp. 105-125 ◽  
Author(s):  
B.L. Beres ◽  
L.M. Dosdall ◽  
D.K. Weaver ◽  
H.A. Cárcamo ◽  
D.M. Spaner
Keyword(s):  
Great Plains ◽  
Insect Pests ◽  
Integrated Management ◽  
Management Strategies ◽  
Management Program ◽  
Economic Losses ◽  
Northern Great Plains ◽  
Primary Control ◽  
Wheat Stem Sawfly ◽  
Research Activities

AbstractThe wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is historically one of the most important economic insect pests in the northern Great Plains of North America. Within this geographical region, the areas subjected to greatest attack are southern Alberta and Saskatchewan, southwestern Manitoba, eastern and northern Montana, North Dakota, northern South Dakota, and western Minnesota. Cumulative grain-yield losses and annual economic losses associated with this pest can exceed 30% and $350 million, respectively. Solid-stemmed cultivars of common wheat, Triticum aestivum L. (Poaceae), tolerant of infestation, are critical for C. cinctus management, but outbreaks of this pest continue to occur even after six decades of cultivar development. Furthermore, chemical control (a primary control option for other cereal (Poaceae) insect pests) has proven ineffective; this underscores the need to integrate resistant cultivars into a comprehensive integrated pest management program. We provide overviews of wheat stem sawfly biology, recent advances in applied research, the efficacy and integration of cultural and biological management strategies, and future directions for global research activities to manage wheat stem sawfly.

Sign in / Sign up

Export Citation Format

Share Document