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8 results for “Macrolophus pygmaeus”
Figure 4 in Can host plants affect egg predation of two-spotted spider mite by Macrolophus pygmaeus (Hemiptera: Miridae)?
Figure 4. Age-specific survival rate (lx), age-specific predation rate (kx), and age-specific net predation rate (qx) of Macrolphus pygmaeus fed on Tetranychus urticae eggs reared on tomato and sweet pepper.
Figure 2 in Can host plants affect egg predation of two-spotted spider mite by Macrolophus pygmaeus (Hemiptera: Miridae)?
Figure 2. Age-specific survivorship (lx), age-stage-specific fecundity (fxj), age-specific fecundity of the total population (mx), and age-specific maternity (lxmx) of Macrolophus pygmaeus fed on Tetranychus urticae eggs reared on tomato plant and sweet pepper.
Dataset related to the responses of eggplant plants to Bemisia Tabaci whitefly in presence of one of its natural enemies, the Macrolophus pygmaeus plant bug
<p>This dataset assesses the response of eggplant plants to 3 conditions: noninfested control plants, plants infested by Bemisia tabaci whitefly, and plants infested by Bemisia tabaci where Macrolophus pygmaeus plant bug was also released.</p> <p>The data of the various parameters relating to the responses of the different eggplant plants to the three tested conditions were analyzed using a one-way ANOVA. Where significant differences were detected, the means were separated by Tukey’s HSD test (p < 0.05). Statistical analysis was carried out using the program Statistica (StatSoft, TIBCO Software Inc., Tulsa, OK, USA).</p> <p>The provided dataset was used in the investigation of whether the Macrolophus pygmaeus (Hemiptera: Miridae) plant bug can mitigate the damage caused to plants by the Bemisia tabaci whitefly (Hemiptera: Aleyrodidae). A discussion and interpretation of the data, as well as subsequent results, is provided in the scientific publication <a href="https://zenodo.org/record/7660447#.Y_Soh3aZObg">"Can Macrolophus pygmaeus (Hemiptera: Miridae) Mitigate the Damage Caused to Plants by Bemisia tabaci (Hemiptera: Aleyrodidae)?"</a>, published in the <em><strong><a href="https://www.mdpi.com/2075-4450/14/2/164">Insects</a> </strong></em>journal. </p> <p>This research was conducted within the VIRTIGATION project, which is part of the EU Open Research Data pilot. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 101000570.</p>
Data from: Life-history traits of Macrolophus pygmaeus with different prey foods
Macrolophus pygmaeus Rambur (Hemiptera: Miridae) is a generalist predatory mirid widely used in augmentative biological control of various insect pests in greenhouse tomato production in Europe, including the invasive tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae). However, its biocontrol efficacy often relies on the presence of alternative prey. The present study aimed at evaluating the effect of various prey foods (Ephestia kuehniella eggs, Bemisia tabaci nymphs, Tuta absoluta eggs and Macrosiphum euphorbiae nymphs) on some life history traits of M. pygmaeus. Both nymphal development and adult fertility of M. pygmaeus were significantly affected by prey food type, but not survival. Duration of nymphal stage was higher when M. pygmaeus fed on T. absoluta eggs compared to the other prey. Mean fertility of M. pygmaeus females was greatest when fed with B. tabaci nymphs, and was greater when offered M. euphorbiae aphids and E. kuehniella eggs than when offered T. absoluta eggs. Given the low quality of T. absoluta eggs, the efficacy of M. pygmaeus to control T. absoluta may be limited in the absence of other food sources. Experiments for assessing effectiveness of generalist predators should involve the possible impact of prey preference as well as a possible prey switching.
FIGURES 6–11 in First New Zealand record of the genus Macrolophus Fieber, 1858 (Hemiptera: Miridae: Bryocorinae: Dicyphini): Macrolophus pygmaeus (Rambur, 1839), a beneficial predacious insect
FIGURES 6–11 Bryocorinae now in New Zealand. 6–7 Macrolophus pygmaeus (Auckland): 6, male; 7, fifth instar. 8–10 Engytatus nicotianae (Auckland): 8, male; 9, fourth instar; 10, fifth instar. 11, Felisacus elegantulus male (Auckland).
Data from: Life-history traits of Macrolophus pygmaeus with different prey foods
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Data from: Beyond predation: the zoophytophagous predator Macrolophus pygmaeus induces tomato resistance against spider mites
Many predatory insects that prey on herbivores also feed on the plant, but it is unknown whether plants affect the performance of herbivores by responding to this phytophagy with defence induction. We investigate whether the prior presence of the omnivorous predator Macrolophus pygmaeus (Rambur) on tomato plants affects plant resistance against two different herbivore species. Besides plant-mediated effects of M. pygmaeus on herbivore performance, we examined whether a plant defence trait that is known to be inducible by herbivory, proteinase inhibitors (PI), may also be activated in response to the interactions of this predator with the tomato plant. We show that exposing tomato plants to the omnivorous predator M. pygmaeus reduced performance of a subsequently infesting herbivore, the two-spotted spider mite Tetranychus urticae Koch, but not of the greenhouse whitefly Trialeurodes vaporariorum (Westwood). The spider-mite infested tomato plants experience a lower herbivore load, i.e., number of eggs deposited and individuals present, when previously exposed to the zoophytophagous predator. This effect is not restricted to the exposed leaf and persists on exposed plants for at least two weeks after the removal of the predators. The decreased performance of spider mites as a result of prior exposure of the plant to M. pygmaeus is accompanied by a locally and systemically increased accumulation of transcripts and activity of proteinase inhibitors that are known to be involved in plant defence. Our results demonstrate that zoophytophagous predators can induce plant defence responses and reduce herbivore performance. Hence, the suppression of populations of certain herbivores via consumption may be strengthened by the induction of plant defences by zoophytophagous predators.
Data from: Beyond predation: the zoophytophagous predator Macrolophus pygmaeus induces tomato resistance against spider mites
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