Die natürlichen Feinde der Tetranychideni<sup>1</sup>

Berker, Jochem

doi:10.1111/j.1439-0418.1958.tb01318.x

Cited by 32 publications

(6 citation statements)

References 21 publications

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“…These two species are equally abundant in bark crevices. Litter also serves as the dormancy site for Stethorus pusillus (Putman 1955, Berker 1958, Savoiskaya 1983 ) and S. punctum punctum (Felland & Hull 1996 ), although some authors report Stethorus spp. hibernating in the bark (Moter 1959 ).…”

Section: Adalia Bipunctatamentioning

confidence: 99%

“…of fat reserves again increased, and varied in the three springs studied due to different temperatures: the decrease of fat in Cer. undecimnotata males amounted to 0.018 mg, 0.045 mg and 0.027 mg per day in 1957, 1958and 1959, respectively (Hodek & Cerkasov 1963. Findings by Hariri (1966) and (Pantyukhov 1968a, b ) agree with the above.…”

Section: Rate Of D Ecreasementioning

confidence: 99%

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Diapause/Dormancy

Hodek

2012

Ecology and Behaviour of the Ladybird Beetles (Coccinellidae)

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Section: Adalia Bipunctatamentioning

confidence: 99%

Section: Rate Of D Ecreasementioning

confidence: 99%

Diapause/Dormancy

Hodek

2012

Ecology and Behaviour of the Ladybird Beetles (Coccinellidae)

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“…In areas where winters are less severe, Stethorus may overwinter successfully in less protected sites. For example, S. punctum commonly overwinter in cardboard bands wrapped around tree trunks in Washington apple orchards (Horton et al, 2002), as does S. punctillum in Germany (Berker, 1958).…”

Section: Diapause and Overwinteringmentioning

confidence: 99%

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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“…The effectiveness of C. carnea in controlling aphids on various crops has been studied by several authors (SUNDBY 1966;SCOPES 1969;ARZET 1972;HASSAN 1977;TULISALO and TUOVINEN 1975). C. carnea is not only predacious on aphids but also on spider mites (BERKER 1958;DOSE 1956;HAUB et al 1983) as well as on lepidopterous eggs. BUTLER and MAY (1971), EL-DAKROURY et al (1977) investigated the searching capacity and feeding activity of C. carnea larvae on Heliothis eggs.…”

Section: Introductionmentioning

confidence: 99%

The feeding activity of Chrysoperla carnea (Stephens) on Barathra brassicae L. and Spodoptera littoralis (Boisd.)¹

Şengonça¹,

Grooterhorst²

1985

Zeitschrift für Angewandte Entomologie

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In the present study the feeding activity of Chrysoperla carnea (Stephens) on eggs of the two lepidopterous species, Barathra brassicae L. and Spodoptera littoralis (Boisd.) was investigated. In both cases the number of eggs killed by C. carnea increased slowly and reached a peak in the third larval stage. By third stage larvae 367.7 eggs of B. brassicae, which is equivalent to 86.23% of the total amount, and 837.4 or 85.20% of S. littoralis eggs were killed. During larval development C. carnea consumed a mean total of 426.2 B. brassicae eggs compared to 982.9 S. littoralis eggs. The weight determination of the lepidopterous eggs revealed, that the eggs of B. brassicae had a weight of 101.1 mg per 1000 eggs and so were 2.33 times heavier than S. littoralis eggs which had a weight of 45.3 mg per 1000 eggs. Thus C. carnea larvae consumed 43.12 mg of B. brassicae and 44.54 mg of S. littoralis eggs. This indicated that C. carnea did kill a different number of eggs of the two lepidopterous species, the weight of the prey consumed however was the same. Zusammenfassung Fraßaktivität von Chrysoperla carnea (Stephens) gegenüber Kohleule, Barathra brassicae L. und Baumwolleule, Spodoptera littoralis (Boisd.) In der vorliegenden Arbeit wurde Chrysoperla carnea auf die Fraßaktivität gegenüber den beiden Lepidopteren‐Arten Barathra brassicae und Spodoptera littoralis untersucht. Bei beiden Arten stieg der Eiverzehr allmählich an und erreichte im dritten Larvenstadium ein Maximum. So wurden von B. brassicae in diesem Stadium durchschnittlich 367,7 Eier, was 86,23 % der Gesamtmenge entsprach, von S. littoralis 837,4 Eier oder 85,20 % gefressen. C. carnea vertilgte während der gesamten Larvenentwicklung 426,2 Eier von B. brassicae gegenüber 982,9 Eier von S. littoralis. Das Wiegen der Eier beider Lepidopteren‐Arten ergab, daß die Eier von B. brassicae mit einem Gewicht von 101,1 mg pro 1000 Eier 2,33mal schwerer waren als die Eier von S. littoralis mit einem Gewicht von 45,3 mg pro 1000 Eier. Somit verzehrte C. carnea 43,12 mg Eier von B. brassicae bzw. 44,54 mg Eier von S. littoralis. Hieraus wurde ersichtlich, daß C. carnea zwar eine unterschiedliche Anzahl Eier von beiden Lepidopteren‐Arten verzehrte, gewichtsmäßig blieb die Menge jedoch gleich.

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Die natürlichen Feinde der Tetranychideni¹

Cited by 32 publications

References 21 publications

Diapause/Dormancy

Diapause/Dormancy

Coccinellidae as predators of mites: Stethorini in biological control

The feeding activity of Chrysoperla carnea (Stephens) on Barathra brassicae L. and Spodoptera littoralis (Boisd.)¹

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Die natürlichen Feinde der Tetranychideni1

Cited by 32 publications

References 21 publications

Diapause/Dormancy

Diapause/Dormancy

Coccinellidae as predators of mites: Stethorini in biological control

The feeding activity of Chrysoperla carnea (Stephens) on Barathra brassicae L. and Spodoptera littoralis (Boisd.)1

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Product

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Die natürlichen Feinde der Tetranychideni¹

The feeding activity of Chrysoperla carnea (Stephens) on Barathra brassicae L. and Spodoptera littoralis (Boisd.)¹