Sugar as nutritional supplement for the zoophytophagous predator Nesidiocoris tenuis

Urbaneja‐Bernat, Pablo; Alonso, M.; Tena, Alejandro; Bolckmans, K.; Urbaneja, Alberto

doi:10.1007/s10526-012-9466-y

Cited by 45 publications

(48 citation statements)

References 30 publications

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“…). Non‐prey foods like honeydew have previously been shown to facilitate greater survival and fecundity of predators but also to be a less suitable food source compared with other sugar sources and prey . Sugar composition of honeydew could be the key component determining nutritional value to predators .…”

Section: Discussionmentioning

confidence: 99%

“…Non-prey foods like honeydew have previously been shown to facilitate greater survival and fecundity of predators but also to be a less suitable food source compared with other sugar sources and prey. 20,54 Sugar composition of honeydew could be the key component determining nutritional value to predators. 12 We found sorbitol was the most abundant sugar in honeydew followed by fructose and raffinose, which is consistent with what Le Goff et al found in honeydew of the pear psylla C. pyri.…”

Section: Discussionmentioning

confidence: 99%

“…We used a Bonferroni correction to assess significance for predation data to avoid inflation of type I errors from multiple comparisons (α was considered at P = 0.01).We analyzed the effect of honeydew or sorbitol feeding on nymphal survival using a χ 2 test; the effect on adult survival was analyzed by Kaplan–Meier survivorship curves along with log‐rank tests. We used analysis of variance (ANOVA) to examine the differences in sugar concentrations of pear psylla honeydew, the effects of honeydew and sorbitol feeding on predator longevity, development and oviposition, and differences in ecdysone concentrations of O. sauteri . ANOVA tests were followed by post‐hoc Tukey HSD tests.…”

Section: Methodsmentioning

confidence: 99%

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A sticky situation: honeydew of the pear psylla disrupts feeding by its predator Orius sauteri

Zhang

et al. 2019

Pest Management Science

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Background Honeydew is valuable food source for predators that can build predator numbers and strengthen biological control. Honeydew excreted by hemipterans often supplements the diets of their predators and parasitoids. However, dense sticky honeydew also creates a difficult foraging environment, potentially limiting predator efficiency. Results We examined the benefits and costs of honeydew excreted by the pear psylla (Cacopsylla chinensis [Yang and Li]) for its key predator in much of Asia, the anthocorid bug Orius sauteri (Poppius). We found these predators spent more time foraging and laid more eggs in the presence of psyllid honeydew compared to the control. However, predators more often foraged among psylla without honeydew than those coated in honeydew. This suggests that while O. sauteri recognized honeydew as a useful cue to prey presence, the predators were more likely to attack pear psylla lacking the sugary excretion. In foraging trials, honeydew consistently reduced the number of psyllids killed by the predator, suggesting it limited O. sauteri mobility or reduced the nutritional value of psyllids as prey. We also found slowed development, reduced longevity, and reduced fecundity of O. sauteri reared on moth eggs (Sitotroga cerealella [Olivier]) coated in honeydew compared to those reared on moth eggs alone. Conclusion Altogether, our results suggest that psyllid honeydew could serve as a prey‐location and oviposition cue for O. sauteri. However, honeydew also limited predator foraging with the potential to limit biological control. More generally, honeydew might form an important type of defense for stationary feeders like psyllids. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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A sticky situation: honeydew of the pear psylla disrupts feeding by its predator Orius sauteri

Zhang

et al. 2019

Pest Management Science

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“…The complement of a prey diet with sucrose is known to increase the reproduction of this mirid (Urbaneja‐Bernat et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…Feeding on the honeydew produced by B. tabaci nymphs may increase the performance of N. tenuis. The complement of a prey diet with sucrose is known to increase the reproduction of this mirid (Urbaneja-Bernat et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Nutritional variations at Nesidiocoris tenuis feeding sites and reciprocal interactions between the mirid and tomato plants

Sánchez

Amor

Flores

et al. 2015

J Applied Entomology

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Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) uses a flush‐and‐lacerate feeding strategy producing necrotic rings (NR) at feeding sites in tomato plants. The aim was to investigate the variation in the concentrations of amino acids (aa) and sugars at feeding sites, and its effect on this mirid's life‐history traits and behaviour. The concentration of nutrients was measured in different parts of stems damaged by N. tenuis and mechanically using liquid chromatography. aa concentrations increased below NR; around and above NR, the concentrations of essential and non‐essential aa declined. The concentration of glucose was lower around NR and below. The change in the distribution of aa was similar in NR and mechanically damaged stems, whereas there were no differences in sugar contents. Development time and nymphal mortality were measured on fresh leaflets, leaflets with NR and leaflets plus Ephestia kuehniella Zeller (Lepidoptera: Pyralidae). Without prey, development took longer on NR than on fresh leaflets. Development was quicker and mortality lower on leaflets plus moth eggs. Finally, behavioural events were recorded in fifth‐instar nymphs of N. tenuis in: (i) double‐choice experiments (DCE) using leaflets with and without NR; (ii) DCE using leaflets exposed and non‐previously exposed to nymphs and (iii) fresh tomato leaflets plus Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs. In (i), feeding events lasted longer at NR sites; in (ii), the behaviour of the nymphs on previously exposed leaflets was not significantly different from fresh leaflets; and in (iii), most of the time was dedicated to prey feeding. The overall results indicate that N. tenuis do not take advantage of the inhibited translocation of nutrients in the phloem. The poorer performance of nymphs on leaflets from plants previously exposed to N. tenuis might be due to a general decrease in the concentration of nutrients or to the activation of plant defences.

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Challenges facing arthropod biological control: identifying traits for genetic improvement of predators in protected crops

Bielza

Balanza

Cifuentes

et al. 2020

Pest Management Science

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Biological control is an efficient pest control method but there are still limitations that are hindering its wider adoption. Genetic improvement of biological control agents (BCAs) can help to overcome these constraints, but the choice of key attributes for better performance that need to be selected is still an open question. Several characteristics have been suggested but the harsh reality is that selective breeding of BCAs has received a lot of attention but resulted in very little progress. Identifying the appropriate traits to be prioritized may be the first step to reverse this situation. In our opinion, the best way is to look at the factors limiting the performance of key BCAs, especially generalist predators (pesticide compatibility, prey-density dependence, non-suitable crops, and extreme environmental conditions), and according to these challenges, to choose the attributes that would allow BCAs to overcome those limitations. The benefits of selection for higher resistance to toxins, whether artificially applied (pesticides) or plant produced (plant defenses); increased fitness when feeding on non-prey food (supplemented or plant-derived); and better adaptation to extreme temperature and humidity are discussed. In conclusion, genetic improvement of BCAs can bring about new opportunities to biocontrol industry and users to enhance biocontrol resilience.

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Sugar as nutritional supplement for the zoophytophagous predator Nesidiocoris tenuis

Cited by 45 publications

References 30 publications

A sticky situation: honeydew of the pear psylla disrupts feeding by its predator Orius sauteri

A sticky situation: honeydew of the pear psylla disrupts feeding by its predator Orius sauteri

Nutritional variations at Nesidiocoris tenuis feeding sites and reciprocal interactions between the mirid and tomato plants

Challenges facing arthropod biological control: identifying traits for genetic improvement of predators in protected crops

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