Intra-plant spatial interaction between Delphastus catalinae (Coleoptera: Coccinellidae) and Bemisia tabaci biotype B (Hemiptera: Aleyrodidae) and its effect on predation rates

Rincón, Diego F.; Cañas, Luis A.; Hoy, Casey W.

doi:10.1016/j.biocontrol.2015.12.010

Cited by 5 publications

(4 citation statements)

References 74 publications

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“…The lower third of soybean plants is also less favorable due to the process of leaf senescence which progresses from bottom to top (Pozebon et al, 2019). By colonizing the upper third of plants nymphs may also escape predation, as natural enemies have been found to be more abundant in the lower third of plants (Rincon et al, 2015(Rincon et al, , 2016.…”

Section: Discussionmentioning

confidence: 99%

Vertical distribution of Bemisia tabaci on soybean and attractiveness of cultivars

Rodrigues

Silva

Almeida

et al. 2021

Entomologia Exp Applicata

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The reduction in the number and frequency of insecticide applications in transgenic crops has favored population outbreaks of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) in various Bt (Bacillus thuringiensis Berliner) soybean cultivars [Glycine max (L.) Merrill; Fabaceae], reflecting the fact that plants have different levels of attractiveness to insects. The identification of Bt soybean cultivars resistant to whitefly represents a viable and effective control alternative. The objective of this study was to characterize the vertical distribution of insects on the plant and to identify Bt soybean cultivars less attractive to B. tabaci. The insects used were collected in tomato crops, and the whitefly population was maintained on leaf cabbage plants. Fifteen soybean cultivars were evaluated to determine attractiveness to whitefly. Soybean plants were stratified into upper, middle, and lower thirds. Multiple-choice and no-choice bioassays were carried out with the 15 cultivars. Subsequently, 10 cultivars were selected for a new multiple-choice assay. The parameters evaluated were the number of adults per leaflet and number of eggs cm À2 ; the degree of colonization by nymphs was determined only in the multiple-choice assay. The density and length of trichomes of the 15 cultivars were also characterized. It was shown that the upper third of the plant was the most attractive, having the largest number of adults and colonizing nymphs. The cultivars BRS 9280RR, M 8808, and M 8644IPRO showed low levels of B. tabaci infestation by adults, eggs, and nymphs in the bioassays performed. There was a negative correlation between trichome length and density with the number of adults, eggs, and degree of colonization by nymphs. The vertical distribution and attractiveness of soybean cultivars to whitefly are discussed.

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Section: Discussionmentioning

confidence: 99%

Vertical distribution of Bemisia tabaci on soybean and attractiveness of cultivars

Rodrigues

Silva

Almeida

et al. 2021

Entomologia Exp Applicata

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“…For example, coccinellids, including Delphastus catalinae (Horn), D. pallidus LeConte, and Nephaspis oculatus (Blatchley), have shown a type two functional response towards B. tabaci eggs; predators have consumed a lower proportion of eggs as the number of offered eggs increased [ 33 , 35 ]. Conversely, Rincon et al [ 50 ] observed a type three response better fit the number of B. tabaci consumed by D. catalinae within tomato plants. Interestingly, despite uniform distributions of B. tabaci across the tomato plants, D. catalinae has primarily foraged on lower and middle nodal leaves that might have led to microsites of predator-free space for whitefly on higher plant nodes [ 50 ].…”

Section: Experimental Evidence For Generalist Predator Importance mentioning

confidence: 99%

“…Conversely, Rincon et al [ 50 ] observed a type three response better fit the number of B. tabaci consumed by D. catalinae within tomato plants. Interestingly, despite uniform distributions of B. tabaci across the tomato plants, D. catalinae has primarily foraged on lower and middle nodal leaves that might have led to microsites of predator-free space for whitefly on higher plant nodes [ 50 ].…”

Section: Experimental Evidence For Generalist Predator Importance mentioning

confidence: 99%

Can Generalist Predators Control Bemisia tabaci?

Kheirodin

Simmons

Legaspi³

et al. 2020

Insects

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The whitefly, Bemisia tabaci, has developed resistance to many insecticides, renewing interest in the biological control of this global pest. Generalist predators might contribute to whitefly suppression if they commonly occur in infested fields and generally complement rather than interfere with specialized natural enemies. Here, we review literature from the last 20 years, across US cropping systems, which considers the impacts of generalist predators on B. tabaci. Laboratory feeding trials and molecular gut content analysis suggest that at least 30 different generalist predator species willingly and/or regularly feed on these whiteflies. Nine of these predators appear to be particularly impactful, and a higher abundance of a few of these predator species has been shown to correlate with greater B. tabaci predation in the field. Predator species often occupy complementary feeding niches, which would be expected to strengthen biocontrol, although intraguild predation is also common and might be disruptive. Overall, our review suggests that a bio-diverse community of generalist predators commonly attacks B. tabaci, with the potential to exert substantial control in the field. The key challenge will be to develop reduced-spray plans so that generalist predators, and other more specialized natural enemies, are abundant enough that their biocontrol potential is realized.

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“…During this association, the ants protect the honeydew-producing insects from their predators and parasitoids (Buckley 1987). Research emphasis has generally been on predator -prey interaction with respect to the whitefly, Bemisia tabaci Gennadius and on understanding the biocontrol potential of some of the indigenous generalist predators (Rincon et al 2016;Kheirodin et al 2020), with not much focus on other species of whiteflies and their associated specific natural enemies. The present study, the first of its kind on this invasive pest, aims to understand the distribution and interspecific association of the invasive whitefly A. trachoides with an indigenous predator, A. puttarudriahi and tries to investigate if the T. melanocephalum is capable of protecting the whitefly from predation.…”

Section: Introductionmentioning

confidence: 99%

Interspecific association of solanum whitefly, Aleurothrixus trachoides (Back), coccinellid predator, Axinoscymnus puttarudriahi Kapur and Munshi and ant, Tapinoma melanocephalum (Fabricius) in Capsicum

Ballal

Pratheepa

Verghese

et al. 2021

Int J Trop Insect Sci

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The information on biological activity and species interaction in an ecosystem is essential to understand the mutualism and resource acquisition. A study was taken up to understand the interspecific association among whitefly, its predator and the associated ant species in Capsicum ecosystem. The whitefly was identified as invasive solanum whitefly, Aleurothrixus trachoides (Back), the coccinellid, which was predating on the whitefly as Axinoscymnus puttarudriahi Kapur and Munshi and the associated ant as Tapinoma melanocephalum (Fabricius). Studies on spatial distribution of the pest, predator and ant revealed that the pest and the predator followed aggregate distribution in upper and middle leaves of the plant. A highly significant positive correlation was exhibited between the predator grub and the immature stages of the whitefly as confirmed by Chi-square test, which was evident throughout the plant. Tapinoma melanocephalum exhibited positive association with the pest only in the lower leaves of Capsicum. The non-significant association of T. melanocephalum with the coccinellid predator, indicated that the ant did not interfere with the performance of the predator. The significant positive association of the coccinellid predator larvae and adults with the immature stages of the pest throughout the plant indicated the predatory efficiency of A. puttarudriahi, which needs to be conserved.

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Intra-plant spatial interaction between Delphastus catalinae (Coleoptera: Coccinellidae) and Bemisia tabaci biotype B (Hemiptera: Aleyrodidae) and its effect on predation rates

Cited by 5 publications

References 74 publications

Vertical distribution of Bemisia tabaci on soybean and attractiveness of cultivars

Vertical distribution of Bemisia tabaci on soybean and attractiveness of cultivars

Can Generalist Predators Control Bemisia tabaci?

Interspecific association of solanum whitefly, Aleurothrixus trachoides (Back), coccinellid predator, Axinoscymnus puttarudriahi Kapur and Munshi and ant, Tapinoma melanocephalum (Fabricius) in Capsicum

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