A simple mass-rearing method for predaceous Orius bugs in the laboratory

Ito, Kosuke

doi:10.1303/aez.2007.573

Cited by 17 publications

(8 citation statements)

References 20 publications

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“…A layer of shredded wax paper was placed over the food to reduce cannibalistic interactions among adults and additional Ephestia eggs were placed on the top of the shredded wax paper. Two soybean plants at growth stage V1 or V2 were placed in the container for use as an egg laying substrate (Ito 2007). Soybean plants were kept fresh by immersing the roots in a narrow-mouth water bottle (i.e., 30 ml Nalgene HDPE Boston Round Bottle, Thermo Fisher, Rochester, NY) sealed with ParaÞlm M (Pechiney Plastic Packaging, Chicago IL).…”

Section: Methodsmentioning

confidence: 99%

Development and Survival of Orius insidiosus (Say) Nymphs on Encapsulated Bee Pollen-Based Diet in a Tier-I Toxicity Assay

et al. 2011

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The insidious flower bug, Orius insidiosus (Say) (Heteroptera: Anthocoridae) is an important surrogate species for assessing potential effects of plant-incorporated protectants (PIPs) on nontarget heterotrophic predators. In this study, a continuous dietary exposure system was optimized by assessing the effect of diet composition and age on the survival and development of nymphs of O. insidiosus. Greater than 85% control survival and an acceptable rate of development from nymph hatching to adult was achieved using 5-d-old nymphs at test initiation and a bee pollen-based diet supplemented with 25% Ephestia eggs. There was an unacceptable level of mortality (>40%) and/or a significantly prolonged development time when nymphs were <5 d old at test initiation. When 5-d-old nymphs were fed a bee pollen diet containing 25% Ephestia eggs and 100 μg/g potassium arsenate, time-dependent mortality was observed with a median lethal time (LT50) of 4.4 d and 100% mortality was observed after 10 d of feeding, indicating the effectiveness of the test system to detect adverse effects by dietary exposure. It is recommended that well-defined 5-d-old nymphs and an encapsulated bee pollen-based diet containing 25% ground Ephestia eggs be used in a Tier-I dietary feeding exposure assay for detecting potential effects of PIPs on O. insidiosus nymphs.

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Section: Methodsmentioning

confidence: 99%

Development and Survival of Orius insidiosus (Say) Nymphs on Encapsulated Bee Pollen-Based Diet in a Tier-I Toxicity Assay

et al. 2011

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“…Most frequently, IGP is reported to be damaging or antagonistic [16][17][18][19][20][21][22] although it may sometimes have a neutral [23] or beneficial (synergistic) effect [24,25].The effect of cannibalism has received less modelling attention, which is curious since it is often associated with IGP. Moreover, it is an important impediment to efficiency in the mass production of biological control agents [26][27][28][29][30][31]. In addition, in augmentative biological control, releases can result in high densities of natural enemies at low pest levels, or before the pest appears on the crop [32].…”

Section: Introductionmentioning

confidence: 99%

Do Development and Diet Determine the Degree of Cannibalism in Insects? To Eat or Not to Eat Conspecifics

Fernández

Gámez

Garay

et al. 2020

Insects

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Cannibalism in insects plays an important role in ecological relationships. Nonetheless, it has not been studied as extensively as in other arthropods groups (e.g., Arachnida). From a theoretical point of view, cannibalism has an impact on the development of more realistic stage-structure mathematical models. Additionally, it has a practical application for biological pest control, both in mass-rearing and out in the field through inoculative releases. In this paper, the cannibalistic behavior of two species of predatory bugs was studied under laboratory conditions—one of them a generalist predator (strictly carnivorous), Nabis pseudoferus, and the other a true omnivore (zoophytophagous), Nesidiocoris tenuis—and compared with the intraguild predation (IGP) behavior. The results showed that cannibalism in N. pseudoferus was prevalent in all the developmental stages studied, whereas in N. tenuis, cannibalism was rarely observed, and it was restricted mainly to the first three nymphal stages. Cannibalism and intraguild predation had no linear relationship with the different cannibal–prey size ratios, as evaluated by the mortality rates and survival times, although there were variations in cannibalism between stages, especially for N. pseudoferus. The mathematical model’s implications are presented and discussed.

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“…We did not test the predation capacity of O. sauteri on 1st instars of C. chinensis because of the difficulty in manipulation of such small psyllids. Because of many previous studies of mass‐rearing methods for Orius bugs, O. sauteri is now commercially available as a biological control agent ( e.g ., Kuoyetianyuan®, Beijing, China). Unlike other psyllids that direct the wax covered honeydew away from their body, nymphs of C. chinensis are always coated by their honeydew across all five instars, even when single individuals forage alone .…”

Section: Introductionmentioning

confidence: 99%

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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A simple mass-rearing method for predaceous Orius bugs in the laboratory

Cited by 17 publications

References 20 publications

Development and Survival of Orius insidiosus (Say) Nymphs on Encapsulated Bee Pollen-Based Diet in a Tier-I Toxicity Assay

Development and Survival of Orius insidiosus (Say) Nymphs on Encapsulated Bee Pollen-Based Diet in a Tier-I Toxicity Assay

Do Development and Diet Determine the Degree of Cannibalism in Insects? To Eat or Not to Eat Conspecifics

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

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