Intraguild predation and sublethal interactions between two zoophytophagous mirids, Macrolophus pygmaeus and Nesidiocoris tenuis

2014 ◽  
Vol 70 ◽  
pp. 35-41 ◽  
Author(s):  
D. Perdikis ◽  
E. Lucas ◽  
N. Garantonakis ◽  
A. Giatropoulos ◽  
P. Kitsis ◽  
...  
Keyword(s):  
Intraguild Predation ◽  
Macrolophus Pygmaeus ◽  
Nesidiocoris Tenuis

Distribution, abundance and natural enemies of the invasive tomato leafminer, Tuta absoluta (Meyrick) in Kenya

2021 ◽  
pp. 1-16
Author(s):  
G. Kinyanjui ◽  
F. M. Khamis ◽  
F. L. O. Ombura ◽  
E. U. Kenya ◽  
S. Ekesi ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Sustainable Management ◽  
Management Strategies ◽  
Tuta Absoluta ◽  
Macrolophus Pygmaeus ◽  
Larval Parasitoids ◽  
Parasitism Rates ◽  
Nesidiocoris Tenuis ◽  
Sentinel Plants ◽  
Open Fields

Abstract Tuta absoluta (Meyrick) has become a serious menace to sustainable production of tomato in Kenya. A survey was conducted between April 2015 and June 2016 to determine its distribution, abundance, infestation, and damage levels on tomato, and associated natural enemies. Trap counts of T. absoluta moths were recorded in all surveyed 29 counties, which indicated its nationwide distribution irrespective of altitude. Tuta absoluta was present in both open fields and greenhouses. The highest moth/trap/day was 115.38 ± 15.90. Highest leaf infestation was 92.22% and the highest number of mines and larvae per leaf were 3.71 ± 0.28 and 2.16 ± 0.45, respectively. Trap captures in terms of moth/trap/day were linearly and positively related to leaf infestations in open fields (R2 = 0.81) and greenhouses (R2 = 0.61). Highest fruits’ infestation and damage were 60.00 and 59.61%, respectively, while the highest number of mines per fruit was 7.50 ± 0.50. Nesidiocoris tenuis (Reuter) and Macrolophus pygmaeus (Rambur) were identified as predators of T. absoluta larvae. Nine species of larval parasitoids were recovered from infested foliage, with a combined parasitism of 7.26 ± 0.65%. Hockeria species was the most dominant (31.25%) and accounted for 12.88 ± 1.47% parasitism. Two species of larval parasitoids, Hockeria and Necremnus were obtained from sentinel plants with an average parasitism of 1.13 ± 0.25. The overall abundance and parasitism rates of recovered natural enemies were low to effectively control the field populations of T. absoluta. These findings form the basis of researching and developing effective and sustainable management strategies for the pest.

Species identity of Macrolophus melanotoma (Costa 1853) and Macrolophus pygmaeus (Rambur 1839) (Insecta: Heteroptera: Miridae) based on morphological and molecular data and bionomic implications

2006 ◽  
Vol 37 (4) ◽  
pp. 385-404 ◽  
Author(s):  
Juan Antonio Sanchez ◽  
Jose Luis Cenis ◽  
Gerasimos Cassis ◽  
Jose Isidro Martinez-Cascales
Keyword(s):  
Phylogenetic Analyses ◽  
Antennal Segment ◽  
Distinct Species ◽  
Molecular Data ◽  
Morphological Data ◽  
Species Identity ◽  
Macrolophus Pygmaeus ◽  
Nesidiocoris Tenuis ◽  
Black Band ◽  
Morphological And Molecular Data

AbstractMacrolophus contains a small group of Palaearctic species with very simple and similar external morphology. The classification of these species has been based on variable characters such as body measurements, the height of the black band-shaped macula behind the eyes and the colour of the first antennal segment. Macrolophus melanotoma (Costa 1853), Macrolophus pygmaeus (Rambur 1839) and Macrolophus costalis Fieber 1858, are the most reputed predators of the genus. The classification history of M. melanotoma and M. pygmaeus shows a great number of misconceptions that have left the identity of the two species in confusion. Despite the economic importance of these two species, they have not received comprehensive taxonomical treatment until now. In this work, the morphological and sequence variation of a cytochrome b fragment (320 bp) were analysed to determine the identity of M. melanotoma and M. pygmaeus. Macrolophus costalis, Dicyphus cerastii Wagner 1951b, Dicyphus tamaninii Wagner 1951b, Cyrtopeltis geniculata Fieber 1861 and Nesidiocoris tenuis (Reuter 1895) were used as outgroup taxons in the phylogenetic analyses. Several evolutionary models were explored under a maximum likelihood framework. Macrolophus melanotoma and M. pygmaeus were classified as two distinct species based on monophyly, molecular and morphological data. Nodes at the species level were supported by high bootstrap values. M. pygmaeus and M. costalis are sister species, M. melanotoma basal to them. The shape of the black macula behind the eye may be used as a diagnostic character to differentiate M. melanotoma from M. pygmaeus with some degree of confidence.

scholarly journals Combination of generalist predators, Nesidiocoris tenuis and Macrolophus pygmaeus, with a companion plant, Sesamum indicum: What benefit for biological control of Tuta absoluta?

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257925
Author(s):  
Kouassi Arthur J. Konan ◽  
Lucie S. Monticelli ◽  
San-Whouly M. Ouali-N’goran ◽  
Ricardo Ramirez-Romero ◽  
Thibaud Martin ◽  
...  
Keyword(s):  
Sesamum Indicum ◽  
Tuta Absoluta ◽  
Crop Damage ◽  
Cultivated Plants ◽  
Tomato Plants ◽  
Macrolophus Pygmaeus ◽  
Better Regulation ◽  
Companion Plant ◽  
Nesidiocoris Tenuis ◽  
Companion Plants

Tuta absoluta is one of the most damaging pests of tomato crops worldwide. Damage due to larvae may cause up to 100% loss of tomato production. Use of natural enemies to control the pest, notably predatory mirids such as Nesidiocoris tenuis and Macrolophus pygmaeus, is increasingly being promoted. However, considering the potential damage caused to tomatoes by these omnivorous predators in the absence of T. absoluta, an alternative solution could be required to reduce tomato damage and improve the predators’ performance. The use of companion plants can be an innovative solution to cope with these issues. The present study aimed to determine the influence of companion plants and alternative preys on the predators’ performance in controlling T. absoluta and protecting tomato plants. We evaluated the effect of predators (alone or combined) and a companion plant (sesame (Sesamum indicum)) on T. absoluta egg predation and crop damage caused by N. tenuis. The influence of an alternative prey (Ephestia kuehniella eggs) on the spatial distribution of predators was also evaluated by caging them in the prey presence or absence, either on tomato or sesame plants or on both. We found that the presence of sesame did not reduce the efficacy of N. tenuis or M. pygmaeus in consuming T. absoluta eggs; hatched egg proportion decreased when N. tenuis, M. pygmaeus, or both predators were present. More specifically, this proportion was more strongly reduced when both predators were combined. Sesame presence also reduced necrotic rings caused by N. tenuis on tomato plants. Nesidiocoris tenuis preferred sesame over tomato plants (except when food was provided only on the tomato plant) and the upper part of the plants, whereas M. pygmaeus preferred tomato to sesame plants (except when food was provided only on the sesame plant) and had no preference for a plant part. Combination of predators N. tenuis and M. pygmaeus allows for better coverage of cultivated plants in terms of occupation of different plant parts and better regulation of T. absoluta populations. Sesamum indicum is a potential companion plant that can be used to significantly reduce N. tenuis damage to tomatoes.

Хищные клопы в системе контроля вирусов на семенном картофеле

2018 ◽  
Author(s):  
I.M. Pazyuk ◽  
T.S. Fominykh ◽  
K.D. Medvedeva
Keyword(s):  
Pest Control ◽  
Potato Virus ◽  
Virus Transmission ◽  
Meristem Culture ◽  
Podisus Maculiventris ◽  
Macrolophus Pygmaeus ◽  
Orius Majusculus ◽  
Nesidiocoris Tenuis ◽  
Predatory Bugs ◽  
Factitious Food

В статье рассмотрена возможность выпуска хищных клопов (подизуса, ориуса, незидиокориса и макролофуса) против вредных насекомых-переносчиков вирусных болезней на меристемном картофеле в теплицах. В садковых экспериментах в 2016–2017 годах оценивали вероятность переноса Y-вируса картофеля этими энтомофагами. Опыты показали, что ни один из видов клопов не переносил Y-вирус. Однако было выявлено, что незидиокорис и макролофус повреждали рассаду картофеля в отсутствии животной пищи (вредителей, подкормки). В связи с этим для биологической защиты меристемного картофеля от вредителей можно рекомендовать только клопов подизуса и ориуса.The predatory bugs Podisus maculiventris, Orius majusculus, Nesidiocoris tenuis and Macrolophus pygmaeus were tested for control of pests in potato meristem culture in greenhouses. The risk of Y potato virus transmission by these entomophagous bugs was estimated in cage experiments in years 2016–2017. It has been shown that none of the bugs tested was capable of transmitting the Y-virus. However, N. tenuis and M. pygmaeus have been shown to damage potato seedlings in the absence of animal food (pests or factitious food). Therefore, we can recommend only P. maculiventris and O. majusculus for pest control in potato meristem culture in greenhouses.

Depredación potencial de hemípteros comerciales sobre huevos de Drosophila suzukii (Diptera: Drosophilidae)

2017 ◽  
Vol 43 (2) ◽  
pp. 251
Author(s):  
Sergio Pérez-Guerrero ◽  
José María Molina-Rodríguez
Keyword(s):  
Drosophila Suzukii ◽  
Orius Laevigatus ◽  
Macrolophus Pygmaeus ◽  
Anthocoris Nemoralis ◽  
Nesidiocoris Tenuis

Drosophila suzukii es una especie exótica y plaga invasora (originaria del sudeste asiático) que afecta a varios cultivos importantes en Europa y América, entre ellos se destacan los frutos rojos. Este trabajo analiza el potencial depredador de hemípteros comerciales sobre huevos de D. suzukii en condiciones de laboratorio utilizando frutos de arándano. Se llevaron a cabo tres tipos de tratamientos: frutos con puesta + depredador, fruto sin puesta + depredador (control) y fruto sin puesta sin depredador (control). Al cabo de 72 h, se retiraron los depredadores anotando el número de hemípteros vivos y muertos. El número de adultos emergidos por fruto se comparó con el del tratamiento control. Se compararon los promedios del número de depredadores vivos y muertos en contacto con frutos con puesta con el de los depredadores vivos y muertos en contacto con fruto sin puesta. Entre los depredadores seleccionados para el estudio, sólo Anthocoris nemoralis produjo una reducción significativa del número de adultos emergidos por fruto (alrededor del 50 %). No se encontraron diferencias significativas en el número medio de adultos emergidos de D. suzukii en  los tratamientos de Orius laevigatus, Macrolophus pygmaeus y Nesidiocoris tenuis, si bien este último mostró una mayor tasa de supervivencia en presencia de fruto infestado. Estudios pormenorizados, a mayor escala, son necesarios para confirmar el potencial de depredador de A. nemoralis sobre huevos de D. suzukii.

scholarly journals Can the Combined Use of the Mirid Predator Nesidiocoris tenuis and a Braconid Larval Endoparasitoid Dolichogenidea gelechiidivoris Improve the Biological Control of Tuta absoluta?

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1004
Author(s):  
Pascal Osa Aigbedion-Atalor ◽  
Martin P. Hill ◽  
Pascal Mahukpe Ayelo ◽  
Shepard Ndlela ◽  
Myron P. Zalucki ◽  
...  
Keyword(s):  
Biological Control ◽  
Natural Enemies ◽  
Natural Enemy ◽  
Intraguild Predation ◽  
Tuta Absoluta ◽  
Larval Stages ◽  
Combined Use ◽  
Nesidiocoris Tenuis

The koinobiont solitary larval endoparasitoid Dolichogenidea gelechiidivoris (Marsh) (Syn.: Apanteles gelechiidivoris) (Hymenoptera: Braconidae) and the predatory bug Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) are important natural enemies of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), a serious pest of tomato. Although N. tenuis preferentially feeds on T.absoluta eggs, it is also recorded as a predator of first and second instar larval stages. Dolichogenidea gelechiidivoris preferentially seeks these early larval stages of T. absoluta for oviposition. The occurrence of intraguild predation between N. tenuis and D. gelechiidivoris and the consequences on the oviposition performance of D. gelechiidivoris were investigated in the laboratory. Regardless of the manner of introduction (i.e., the sequence of combinations with D. gelechiidivoris) or density (i.e., number of N. tenuis combined with D. gelechiidivoris), the presence of N. tenuis did not affect the oviposition performance of D. gelechiidivoris or the parasitoid’s progeny. Combination assays revealed that the efficacy of the combined use of N. tenuis and D. gelechiidivoris in controlling T. absoluta populations was significantly higher than that of either natural enemy alone. Our results highlight the potential of combining mirid predators and koinobiont larval endoparasitoids to control T. absoluta. The findings further contribute to data supporting the release of D. gelechiidivoris in tomato agroecosystems for the control of T. absoluta in Africa, where N. tenuis is widespread and abundant.

Sign in / Sign up

Export Citation Format

Share Document