Pearl bodies of <i>Cayratia japonica</i> (Thunb.) Gagnep. (Vitaceae) as alternative food for a predatory mite <i>Euseius sojaensis</i> (Ehara) (Acari: Phytoseiidae)

Ozawa, Mayuko; Yano, Shuichi

doi:10.1007/s11284-008-0501-5

Cited by 17 publications

(21 citation statements)

References 33 publications

(30 reference statements)

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“…However, in many cases, honeydew and plant-derived foods are inferior in terms of development and reproduction (Nomikou et al 2003;Ozawa and Yano 2008). Moreover, the experience of feeding on non-prey food items may affect the recovery of reproduction during subsequent opportunities to eat preferred foods.…”

Section: Discussionmentioning

confidence: 99%

“…When prey herbivores are scarce or absent on crops, phytoseiid mite populations often survive on supplemental non-prey food items. If such non-prey items are available, Type II to IV phytoseiid mites tend to colonize plants regardless of the density of prey herbivores, suggesting that they can be used to manage colonies of incipient prey herbivores (Osakabe et al 1987;van Rijn et al 2002;Ozawa and Yano 2008). A population of Euseius hibisci (Chant) in California increased with increases in the amount of wind-borne pollen, allowing them to efficiently control Panonychus citri (McGregor) and maintain a low density in citrus groves (Kennett et al 1979).…”

Section: Introductionmentioning

confidence: 99%

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Development, long-term survival, and the maintenance of fertility in Neoseiulus californicus (Acari: Phytoseiidae) reared on an artificial diet

Ogawa

Osakabe

2008

Exp Appl Acarol

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The effectiveness of non-prey food items, such as pollen, honeydew, and microbes, in maintaining phytoseiid mite populations is widely accepted. However, the availability of such naturally occurring non-prey foods varies with the season and surrounding environment; thus, it is difficult to manipulate and maintain supplies of these food sources. A great deal of research has examined the development and reproduction of phytoseiid mites on artificial diets. Although phytoseiid mites frequently develop, several studies have detected low fecundities of adult females reared on artificial diets. Therefore, the use of artificial diets for commercial propagation is often difficult. However, the potential of artificial diets to maintain phytoseiid mite populations has not yet been evaluated. In this study, we investigated the developmental success and survival of Neoseiulus californicus (McGregor) on an artificial diet. This mite may be one of the most effective phytoseiid species used in agricultural systems for the control of spider mites. N. californicus successfully developed on the artificial diets: 93.5-100% of individuals reached adulthood 4-7 days after hatching. The survival rates of gravid adult females maintained on the AD-1 artificial diet composed of yeast components, saccharides, and egg yolk at 25 degrees C were 100, 80, and 48.9% over 36, 60, and 90 days, respectively. Moreover, >80% of the surviving females maintained on AD-1 for 36 or 60 days laid eggs after being switched to a diet of the spider mite Tetranychus urticae Koch, although they had laid few eggs during the maintenance periods on the artificial diet. Our results indicate that artificial diets can serve as a potentially useful food source for the long-term maintenance of N. californicus populations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development, long-term survival, and the maintenance of fertility in Neoseiulus californicus (Acari: Phytoseiidae) reared on an artificial diet

Ogawa

Osakabe

2008

Exp Appl Acarol

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“…Previous studies (McMurtry et al 1970;Osakabe 1988;Sabelis and Bakker 1992;Ozawa and Yano 2009) also report that established spider mite webs are effective against generalist predators. Although spider mite webs contain many eggs, all eggs are deposited within webs where E. sojaensis cannot easily access.…”

Section: Discussionmentioning

confidence: 92%

“…Euseius sojaensis is a generalist predatory mite that feeds on plant products and many spider mite species (Osakabe et al 1986;Amano 1996). Although E. sojaensis cannot penetrate completed spider mite webs (Osakabe 1988;Ozawa and Yano 2009), the predatory mite readily preys on spider mites outside the webs (Ozawa and Yano 2009). Therefore, the predator is considered to be a typical potential predator of T. urticae and T. kanzawai.…”

Section: Communicated By J Choementioning

confidence: 99%

Cooperative web sharing against predators promotes group living in spider mites

Yano

2012

Behav Ecol Sociobiol

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I examined spider mite cooperative web sharing against predation as a factor promoting group living. Tetranychus urticae and Tetranychus kanzawai infest leaf surfaces under webs made of silk threads. Experimental observation of predation by the predatory mite Euseius sojaensis on spider mites of different group sizes revealed that fewer spider mites were preyed upon when the webbuilding period before the attack was prolonged, suggesting that established webs help protect spider mites. Moreover, per capita predation on spider mites was diluted in larger groups. This was not due to predator satiation but seemingly because webs had been completed while the initial prey was consumed. Spider mites lived more closely together in the presence of a predator, showing that the degree of group living is facultative. In the presence of a preceding spider mite with an established web, a newcomer spider mite gain protection by taking residence in the established webs; sharing the web was not disadvantageous for the preceding mite. The proportion of individuals preyed upon did not differ between preceding and newcomer mites, suggesting that there was no interference against the latter. These interactions were consistent between heterospecific spider mites. Because there was no detectable indirect interaction between mites sharing fresh webs, cooperative web sharing seemed to be a major force promoting group living in the spider mites. Moreover, the distances between spider mites did not differ between heterospecific and conspecific groups, demonstrating that mites living together do not distinguish between species; hence, heterospecific mites may cooperate and live together in the same manner as conspecifics.

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“…Gagnep (Vitaceae) (Oku and Yano 2007;Ozawa et al 2009). The plant is also infested by the hornworms Theretra japonica Boisduval (Sphingidae) and Theretra oldenlandiae Fabricius (Sphingidae) (Mutuura et al 1965).…”

Section: Introductionmentioning

confidence: 99%

Coincidental intraguild predation by caterpillars on spider mites

Shirotsuka

Yano

2012

Exp Appl Acarol

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Intraguild predation (IGP) is defined as the killing and eating of prey species by a predator that also can utilize the resources of the prey. It is mainly reported among carnivores that share common herbivorous prey. However, a large chewing herbivore could prey upon sedentary and/or micro herbivores in addition to utilizing a host plant. To investigate such coincidental IGP, we observed the behavioral responses of the polyphagous mite Tetranychus kanzawai Kishida (Acari: Tetranychidae) when its host plant Cayratia japonica (Thunb.) Gagnep. (Vitaceae) was attacked by hornworms, Theretra japonica Boisduval (Sphingidae) and T. oldenlandiae Fabricius (Sphingidae). We also examined an interaction between the oligophagous mite Panonychus citri McGregor (Acari: Tetranychidae) and caterpillars of the swallowtail Papilio xuthus L. (Papilionidae) that share citrus plants as their main food source. Although all T. kanzawai and some active stage P. citri tried to escape from the coincidental IGP, some were consumed together with eggs, quiescent mites, and host plant leaves, suggesting that coincidental IGP occurs on spider mites in the wild. Moreover, neither hornworms nor swallowtail caterpillars distinguished between spider mite-infested and uninfested leaves, suggesting that the mite-infested leaves do not discourage caterpillar feeding. The reasons that the mites have no effective defense against coincidental IGP other than escaping are discussed.

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Pearl bodies of Cayratia japonica (Thunb.) Gagnep. (Vitaceae) as alternative food for a predatory mite Euseius sojaensis (Ehara) (Acari: Phytoseiidae)

Cited by 17 publications

References 33 publications

Development, long-term survival, and the maintenance of fertility in Neoseiulus californicus (Acari: Phytoseiidae) reared on an artificial diet

Development, long-term survival, and the maintenance of fertility in Neoseiulus californicus (Acari: Phytoseiidae) reared on an artificial diet

Cooperative web sharing against predators promotes group living in spider mites

Coincidental intraguild predation by caterpillars on spider mites

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