Seasonal activity of the spider mite predators Stethorus punctillum (Coleoptera: Coccinellidae) and Neoseiulus fallacis (Acarina: Phytoseiidae) in raspberry, two predators of Tetranychus mcdanieli (Acarina: Tetranychidae)

Roy, Michèle; Brodeur, Jacques; Cloutier, Conrad

doi:10.1016/j.biocontrol.2005.03.012

Cited by 35 publications

(28 citation statements)

References 27 publications

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“…T. pyri can survive on alternative food sources such as rust mites, pollen or fungi when tetranychid mite densities are very low and do not seasonally disperse from trees, as do other phytoseiid predators such as Neoseiulus fallacis (Garman) (Nyrop et al 1998). Biological mite control with T. pyri in Pennsylvania apple orchards does not suffer from temporal or spatial asynchrony such as that found in raspberries (Roy et al 2005). Stethorus punctum is now considered a backup option for mite control when T. pyri conservation fails due to the use of toxic insecticides rather than a complement to phytoseiids.…”

Section: Stethorus Punctum In Pennsylvania Orchardsmentioning

confidence: 99%

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Coccinellidae as predators of mites: Stethorini in biological control

Weber²,

2009

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The Stethorini are unique among the Coccinellidae in specializing on mites (principally Tetranychidae) as prey. Consisting of 90 species in two genera, Stethorus and Parasthethorus, the tribe is practically cosmopolitan. The Stethorini are found in a diverse range of habitats, including many agricultural systems such as pome and stone fruits, brambles, tree nuts, citrus, avocadoes, bananas, papaya, palms, tea, cassava, maize, strawberries, vegetables, and cotton, as well as ornamental plantings, grasslands, forests, and heathlands. Tetranychid mite outbreaks became common in many agricultural systems only after World War II, when widespread use of broad-spectrum insecticides increased. Stethorini were initially appreciated only for their ability to suppress severe outbreaks of tetranychid populations. However, research on their prey searching behaviors reveals that Stethorini use visual and olfactory stimuli to locate small mite colonies in patchy distributions, and can be very effective in regulating their prey at low densities. Moreover , acariphagous coccinellids colonize mite outbreaks earlier, and consume more pest mites, than many other mite predators. Key to the use of coccinellids in conservation biological control programs is the provision of overwintering habitats and refuges from pesticides in and near cropland. When these conditions are fulfilled, Stethorini often play important roles in maintaining suppression of tetranychid populations. Examples of successful biological mite control with Stethorini include apple orchards in Pennsylvania, USA, and citrus in Asia, and the unintended disruption of a tetranychid-based biological control program for the invasive woody weed, gorse, in Australia and New Zealand. The systematics and taxonomy of this group is challenging with many cryptic species, and molecular diagnostic tools are sorely needed. How best to utilize their mite-suppressive potential in diverse settings requires better knowledge of their requirements including utilization of alternative foods, refuges for dormancy and from nonselective pesticides , and host-finding mechanisms.

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Section: Stethorus Punctum In Pennsylvania Orchardsmentioning

confidence: 99%

“…When spider mite populations are low, sticky traps can be more effective than visual counts in monitoring Stethorus populations (Felland et al, 1995;Biddinger and Hull, 1995;Takahashi et al, 2001a;Roy et al, 2005). Readshaw (1975) used white sticky card traps to monitor Stethorini populations in orchards early in the season.…”

Section: Visual Stimulimentioning

confidence: 99%

Coccinellidae as predators of mites: Stethorini in biological control

Weber²,

2009

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“…Entretanto, todas as espécies conhecidas de Stethorus Weise são citadas como predadores de ácaros (Rott & Ponsonby 2000, Yoder et al 2003, Roy et al 2005.…”

Section: Palavras-chave: Controle Biológico Predador Mosca-brancaunclassified

Ocorrência de Stethorus (Stehtorus) minutalus Gordon & Chapin (Coleoptera: Coccinellidae) predando Bemisia tabaci biótipo B (Hemiptera: Aleyrodidae) em algodoeiro no Brasil

Silva¹,

Bonani²

2008

Neotrop. entomol.

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-This report has the objective of registering, for the fi rst time in Brazil, the predator Stethorus (Stethorus) minutalus Gordon & Chapin (Scymninae, Stethorini). Larvae and adults were observed feeding on eggs and nymphs of the whitefl y Bemisia tabaci Gennadius biotype B (Hemiptera: Aleyrodidae), on cotton plants under greenhouse condition in Piracicaba, SP. Probably, this coccinelid is an introduced species in the Country.

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“…Plusieurs autres ennemis naturels de O. afrasiaticus ont été signalés et notamment la coccinelle Stethorus punctillum (Weise) [12][13][14][15][16][17]. Il semble que ce prédateur, polyphage mais recherchant ses proies parmi les acariens [18][19][20] …”

Section: Introductionunclassified

Efficacité de la coccinelleStethorus punctillum(Weise) comme prédateur de l’acarienOligonychus afrasiaticus(McGregor) dans les palmeraies de la région d’Ouargla en Algérie

Idder¹,

Pintureau²

2008

Fruits

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Effectiveness of the ladybird Stethorus punctillum (Weise) as a predator of the mite Oligonychus afrasiaticus (McGregor) in the palm plantations of the area of Wargla in Algeria.Abstract --Introduction. The mite Oligonychus afrasiaticus, locally called "Boufaroua", is a pest of the Algerian palm plantations. To feed itself, it pricks the dates, which become progressively dry at the end of the maturity and become unsuitable for marketing and human consumption. Significant economic losses are then recorded. The most spectacular damage was noted on the Deglet-Nour date variety, with high commercial value. Materials and methods. The rate of infestation of palm tree plantations of the Wargla area was evaluated. Four growing stages of the plant were considered. A very voracious ladybird, Stethorus punctillum, was collected in six palm plantations, then was released on experimental trees in order to check its predatory effectiveness against the mites. Results. The tree infestation was very variable according to the tree and increased progressively according to date ripening. The effectiveness of the released ladybird was significant, especially when trees were highly infested. Discussion and conclusion. Stethorus punctillum plays an important role in the control of the mite O. afrasiaticus. Other predators, however, are present in Algeria; they will have to be tested in order to establish a method of biological control suited to sufficiently protecting the palm plantations against O. afrasiaticus. Résumé --Introduction. L'acarien Oligonychus afrasiaticus, localement appelé « Boufaroua », est un ravageur des palmeraies algériennes. Pour se nourrir, il pique les dattes qui se dessèchent ensuite en fin de maturité et deviennent impropres à la commercialisation et à la consommation humaine. Des pertes économiques importantes sont alors enregistrées. Les dégâts les plus spectaculaires ont été notés sur la variété Deglet-Nour à haute valeur marchande. Matériel et méthodes. Le taux d'infestation des arbres d'une palmeraie de la région d'Ouargla a été évalué. Quatre stades phénologiques ont été considérés. Une coccinelle très vorace, Stethorus punctillum, a été récoltée dans six palmeraies puis lâchée sur des arbres expérimentaux afin de vérifier son efficacité prédatrice sur le « Boufaroua ». Résultats. L'infestation des arbres a été très variable et a augmenté au fur et à mesure de la maturité des dattes. L'efficacité de la coccinelle lâchée a été significative, et cela a été d'autant plus constaté que les arbres étaient fortement infestés. Discussion et conclusion. Stethorus punctillum joue un rôle important dans le contrôle de l'acarien O. afrasiaticus. D'autres prédateurs seraient toutefois présents en Algérie ; ils devront être testés afin d'établir une méthode de lutte biologique apte à protéger suffisamment les palmeraies contre O. afrasiaticus.Algérie / Phoenix dactylifera / fruits / stade de développement végétal / ravageur des plantes / Oligonychus afrasiaticus / lutte antiacarien / agent de lutte biologique / préda...

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Seasonal activity of the spider mite predators Stethorus punctillum (Coleoptera: Coccinellidae) and Neoseiulus fallacis (Acarina: Phytoseiidae) in raspberry, two predators of Tetranychus mcdanieli (Acarina: Tetranychidae)

Cited by 35 publications

References 27 publications

Coccinellidae as predators of mites: Stethorini in biological control

Coccinellidae as predators of mites: Stethorini in biological control

Ocorrência de Stethorus (Stehtorus) minutalus Gordon & Chapin (Coleoptera: Coccinellidae) predando Bemisia tabaci biótipo B (Hemiptera: Aleyrodidae) em algodoeiro no Brasil

Efficacité de la coccinelleStethorus punctillum(Weise) comme prédateur de l’acarienOligonychus afrasiaticus(McGregor) dans les palmeraies de la région d’Ouargla en Algérie

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