scholarly journals Control of Bemisia tabaci (Gennadius) on Tomato in Greenhouses by a Combination of Nesidiocoris tenuis (Reuter) and Banker Plants

2016 ◽  
Vol 58 (0) ◽  
pp. 65-72 ◽  
Author(s):  
Ryohei Nakano ◽  
Yuta Tsuchida ◽  
Makoto Doi ◽  
Ryusuke Ishikawa ◽  
Akio Tatara ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Nesidiocoris Tenuis

scholarly journals Effect of the native strain of the predator Nesidiocoris tenuis Reuter and the entomopathogenic fungi Beauveria bassiana and Lecanicillium muscarium against Bemisia tabaci (Genn.) under greenhouse conditions in Tunisia

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Besma Hamrouni Assadi ◽  
Sabrine Chouikhi ◽  
Refki Ettaib ◽  
Naima Boughalleb M’hamdi ◽  
Mohamed Sadok Belkadhi
Keyword(s):  
Beauveria Bassiana ◽  
Bemisia Tabaci ◽  
Entomopathogenic Fungi ◽  
Tobacco Plant ◽  
Economic Losses ◽  
Native Strain ◽  
Lecanicillium Muscarium ◽  
Southern Tunisia ◽  
Significant Efficacy ◽  
Nesidiocoris Tenuis

Abstract Background The misuse of chemical insecticides has developed the phenomenon of habituation in the whitefly Bemisia tabaci (Gennadius) causing enormous economic losses under geothermal greenhouses in southern Tunisia. Results In order to develop means of biological control appropriate to the conditions of southern Tunisia, the efficacy of the native strain of the predator Nesidiocoris tenuis Reuter (Hemiptera: Miridae) and two entomopathogenic fungi (EPF) Beauveria bassiana and Lecanicillium muscarium was tested against Bemisia tabaci (Gennadius). Indeed, the introduction of N. tenuis in doses of 1, 2, 3, or 4 nymphs per tobacco plant infested by the whitefly led to highly significant reduction in the population of B. tabaci, than the control devoid of predator. The efficacy of N. tenuis was very high against nymphs and adults of B. tabaci at all doses per plant with a rate of 98%. Likewise, B. bassiana and L. muscarium, compared to an untreated control, showed a very significant efficacy against larvae and adults of B. tabaci. In addition, the number of live nymphs of N. tenuis treated directly or introduced on nymphs of B. tabaci treated with the EPF remained relatively high, exceeding 24.8 nymphs per cage compared to the control (28.6). Conclusions It can be concluded that the native strain of N. tenuis and the EPF tested separately were effective against B. tabaci. Their combined use appears to be possible.

scholarly journals The Jekyll and Hyde case of Nesidiocoris tenuis (Reuter) in the management of Bemisia tabaci (Gennadius) on tomato plants under greenhouse conditions

2021 ◽  
Author(s):  
David Wari ◽  
Takeshi Saito ◽  
Motonori Takagi ◽  
Ryo Okada ◽  
Takuya Miyamoto ◽  
...  
Keyword(s):  
Biological Control ◽  
Bemisia Tabaci ◽  
Control Strategies ◽  
Field Tests ◽  
Cost Effective ◽  
Field Studies ◽  
Tomato Plants ◽  
Nesidiocoris Tenuis ◽  
Environmentally Safe

Abstract The rise of Nesidiocoris tenuis (Reuter) as a natural enemy of various greenhouse pests in protected systems is widely reported around the globe, mainly in the Mediterranean basin, Asia, and North and Central America. In-vitro studies on improving its growth and reproduction using artificial and factitious diets, and banker plants for its breeding and propagation, and the use of violet-light (LEDs) as the attraction mechanism are well established. However, field studies are lacking in integrating these biological control components to promote N. tenuis predation on greenhouse pests. First, we performed toxicity assays in-vitro and in field conditions. Results revealed that neonicotinoids and spinosyns were toxic to N. tenuis. Avermectins & milbemycins, pyridine azomethine derivatives and diamides, in contrast, were less to moderately toxic against N. tenuis but toxic to Bemisia tabaci, a known, widespread greenhouse pest. Field tests under greenhouse conditions were performed to evaluate the role of violet-LEDs in relocating N. tenuis from banker plants to tomato plants and their augmentative effect on the densities of B. tabaci. Results showed that the movement of N. tenuis from banker plants to tomato plants was accelerated when supplemented with violet-LEDs. The accelerated resettlement of N. tenuis on tomato plants aided by selective pesticides significantly reduced B. tabaci egg, nymph and adult densities, densities that were relatively the same compared to those of the greenhouse with conventional pest control strategies. Overall, comparable outcomes in managing a pest are possible when biological control agents are integrated with environmentally safe and cost-effective approaches.

scholarly journals Augmenting Nesidiocoris tenuis (Nesidiocoris) with a Factitious Diet of Artemia Cysts to Control Bemisia tabaci (Gennadius) on Tomato Plants under Greenhouse Conditions

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 265
Author(s):  
Takeshi Saito ◽  
Motonori Takagi ◽  
Toshiyuki Tezuka ◽  
Takashi Ogawara ◽  
David Wari
Keyword(s):  
Bemisia Tabaci ◽  
Negative Control ◽  
High Fructose Corn Syrup ◽  
Control Potential ◽  
Tomato Plants ◽  
Corn Syrup ◽  
High Fructose ◽  
Nesidiocoris Tenuis ◽  
Biological Control Potential ◽  
Artemia Cysts

Natural predators such as Nesidiocoris tenuis are known for their role in managing greenhouse pests. However, techniques in maximizing the biological control potential of N. tenuis under field conditions are still lacking. We evaluated under greenhouse conditions the prospects of Artemia cysts enhanced with high fructose corn syrup and honey, and delivered using hemp strings (hemp rope) as supplementary factitious dietary in augmenting the proliferation and spread of N. tenuis on tomato plants. Results showed that N. tenuis supplemented with hemp rope could establish, proliferate and disperse among tomato plants compared to the N. tenuis supplemented with banker plants. Even though N. tenuis proliferated exponentially on banker plants, their movement and relocation to tomato plants, as expected, were only congested on tomato plants near the banker plants. However, as the survey continued, they relocated to the rest of the tomato plants. Furthermore, the number of Bemisia tabaci eggs and nymphs, a serious greenhouse pest of tomato, was observed to be significantly reduced in hemp rope greenhouse compared to banker plants and the negative control (no pest control system) greenhouses. This study, therefore, establishes foundational data on the usage of Artemia cysts enhanced with isomerized sugar (high fructose corn syrup) and honey under greenhouse conditions as factitious supplementary dietary in supporting N. tenuis establishment and spread, traits that are essential towards development of whitefly Integrated Pest Management (IPM) system. enhanced with isomerized sugar (high fructose corn syrup) and honey.

Release rate for a pre-plant application of Nesidiocoris tenuis for Bemisia tabaci control in tomato

BioControl ◽  
2012 ◽  
Vol 57 (6) ◽  
pp. 809-817 ◽  
Author(s):  
F. J. Calvo ◽  
K. Bolckmans ◽  
J. E. Belda
Keyword(s):  
Bemisia Tabaci ◽  
Release Rate ◽  
Nesidiocoris Tenuis

scholarly journals Biological Control Potential and Drawbacks of Three Zoophytophagous Mirid Predators against Bemisia tabaci in the United States

Insects ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 670
Author(s):  
Amy Roda ◽  
Jose Castillo ◽  
Carina Allen ◽  
Alberto Urbaneja ◽  
Meritxell Pérez-Hedo ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Native Species ◽  
The United States ◽  
Economic Damage ◽  
Vegetable Crops ◽  
Field Cage ◽  
Tomato Plants ◽  
Plant Feeding ◽  
Nesidiocoris Tenuis ◽  
Predation Capacity

Miridae (Hemiptera) of the tribe Dicyphini are important zoophytophagous predators use to control pest arthropods in vegetable crops. However, the risk that their herbivory may cause economic damage could hinder their application as useful biocontrol agents and may limit the likelihood they would meet regulatory requirements for importation. We conducted field cage studies to assess the predation capacity and tomato plant damage of three mirid species established in south USA, a known biocontrol agent (Nesidiocoris tenuis), and two native species (Macrolophus praeclarus and Engytatus modestus). All three species significantly reduced the number of whiteflies (Bemisia tabaci) on tomato plants compared to tomato plants without mirids. More damage, evaluated as the number of necrotic rings, was observed on tomato plants with E. modestus and N. tenuis compared to M. praeclarus. In our experiments that included sesame plants (Sesamum indicum) with tomato plants, mirid numbers increased despite a low number of prey, thus showing a benefit of the plant-feeding habit of these predators. USA’s established mirids may therefore prove to be immediately available biological agents for the management of present and future tomato pests.

Predation by Nesidiocoris tenuis on Bemisia tabaci and injury to tomato

BioControl ◽  
2008 ◽  
Vol 54 (2) ◽  
pp. 237-246 ◽  
Author(s):  
Javier Calvo ◽  
Karel Bolckmans ◽  
Philip A. Stansly ◽  
Alberto Urbaneja
Keyword(s):  
Bemisia Tabaci ◽  
Nesidiocoris Tenuis

Life history traits of Nesidiocoris tenuis on Bemisia tabaci and Thrips palmi

BioControl ◽  
2019 ◽  
Vol 65 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Eizi Yano ◽  
Miku Nakauchi ◽  
Takahito Watanabe ◽  
Hiroshi Watanabe ◽  
Shun Hosaka ◽  
...  
Keyword(s):  
Life History ◽  
Bemisia Tabaci ◽  
Life History Traits ◽  
Thrips Palmi ◽  
Nesidiocoris Tenuis
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