Comparison of Orius niger with Orius laevigatus biological control efficiency to western flower thrips (Frankliniella occidentalis Pergande) on sweet pepper in greenhouses

2017 ◽  
pp. 399-406 ◽  
Author(s):  
M. Keçeci ◽  
M.O. Gürkan
Keyword(s):  
Biological Control ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Sweet Pepper ◽  
Orius Laevigatus ◽  
Control Efficiency ◽  
Flower Thrips ◽  
Orius Niger

scholarly journals Biological control of thrips pests (Thysanoptera: Thripidae) in a commercial greenhouse in Hungary

2016 ◽  
Vol 85 (4) ◽  
pp. 437-451
Author(s):  
Péter Farkas ◽  
Nóra Bagi ◽  
Árpád Szabó ◽  
Márta Ladányi ◽  
Krisztiánné Kis ◽  
...  
Keyword(s):  
Biological Control ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Damage Threshold ◽  
Sweet Pepper ◽  
Thrips Tabaci ◽  
First Year ◽  
Vegetable Crops ◽  
Flower Thrips ◽  
Thrips Species

AbstractPolyphagous thrips, like western flower thrips Frankliniella occidentalis and onion thrips Thrips tabaci, are major pests in various ornamental and vegetable crops in greenhouses throughout the world. In Hungary, both of these polyphagous thrips species frequently cause severe damage in many greenhouse crops, especially in commercial sweet pepper. Chemical control is not always feasible because of certain ecological characteristics of these thrips species. The commercially available phytoseiid predatory mites like Amblyseius swirskii and anthocorid flower bugs like Orius laevigatus are often used simultaneously for the biological control of severe thrips infestation in sweet pepper cultivation in Hungary. Our observations demonstrated that the polyphagous thrips assemblages were effectively controlled by the combined release of natural enemies, despite the fact that the establishment of O. laevigatus did not seem to be successful in the first year. Overall, the thrips population density remained below the economic threshold in both years. However, the low infestation level of thrips suggests that a single predator release strategy could be applied effectively and still maintain the thrips below the damage threshold in greenhouse sweet pepper.

scholarly journals Anthocoris nemorum (Heteroptera: Anthocoridae) as predator of cabbage pests – voracity and prey preference

2019 ◽  
Vol 21 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Marie-Louise Rugholm Simonsen ◽  
Annie Enkegaard ◽  
Camilla Nordborg Bang ◽  
Lene Sigsgaard
Keyword(s):  
Biological Control ◽  
Plutella Xylostella ◽  
Frankliniella Occidentalis ◽  
Diamondback Moth ◽  
Western Flower Thrips ◽  
Potential Candidate ◽  
Model Species ◽  
Flower Thrips ◽  
Cabbage Pests ◽  
Cabbage Aphids

Laboratory experimentswere performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20°C ± 1°C, L16:D8, 60–70% RH to determine voracity and preference on cabbage aphids (Brevicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L.) (Lepidoptera: Plutellidae) and Western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae) (model species for cabbage thrips (Thrips angusticeps Uzel) (Thysanoptera: Thripidae)). When offered individually, A. nemorum readily accepted all three species with no significant differences in consumption. When aphids and moth larvae were offered simultaneously, A. nemorum showed preference for the latter (numbers eaten and biomass consumed). When aphids and thrips were offered together, A. nemorum preferred thrips in terms of numbers eaten but preferred aphids in terms of biomass consumed. The results showed that A. nemorum is a voracious predator of B. brassicae, P. xylostella and F. occidentalis and can therefore be considered as a potential candidate for biological control in cabbage.

BIOLOGICAL CONTROL OF FUNGUS GNATS, BRADYSIA SPP. (DIPTERA: SCIARIDAE), AND WESTERN FLOWER THRIPS, FRANKLINIELLA OCCIDENTALS (PERGANDE) (THYSANOPTERA: THRIPIDAE), IN GREENHOUSES USING A SOIL-DWELLING PREDATORY MITE, GEOLAELAPS SP. NR. ACULEIFER (CANESTRINI) (ACARI: LAELAPIDAE)

1990 ◽  
Vol 122 (5) ◽  
pp. 975-983 ◽  
Author(s):  
David R. Gillespie ◽  
Donald M.J. Quiring
Keyword(s):  
Biological Control ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Predatory Mite ◽  
Flower Thrips ◽  
Fungus Gnats ◽  
Fungus Gnat ◽  
Greenhouse Cucumber ◽  
Crop Cycle ◽  
Hydroponically Grown

AbstractA soil-dwelling predatory mite, Geolaelaps sp. nr. aculeifer (Canestrini), introduced inundatively at a rate of 6000 mites per plant to the sawdust substrate of hydroponically grown, greenhouse cucumbers significantly reduced numbers of fungus gnat, Bradysia spp., larvae and adults over a 10-week period. Inundative introductions of 1600 mites per plant reduced emergence of western flower thrips, Frankliniella occidentalis (Pergande), adults to about 30% of that in the controls over a 40-day trial. An inoculative introduction of 125 mites per plant to cucumber plants in selected rows in a commercial greenhouse reduced peak fungus gnat numbers to about 20% of those in untreated rows. These results suggest that a single inoculative introduction of Geolaelaps sp. nr. aculeifer, early in the crop cycle, would maintain control of fungus gnat populations in greenhouse cucumber crops at an acceptable level. This predator would also contribute to biological control of western flower thrips by reducing emergence of adults.

Sign in / Sign up

Export Citation Format

Share Document