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Article
Patch residence time and patch preference of the predatory mite Amblyseius swirskii in relation to prey diversity
Patch-related behaviour of a generalist predator may be influenced by patch prey diversity and result in more time being spent in patches with more than one prey species to increase the benefits of mixed diet....
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Article
Preference and life history traits of Aphelinus abdominalis (Hymenoptera: Aphelinidae) when offered different development stages of the lettuce aphid Nasonovia ribisnigri (Hemiptera: Aphididae)
The degree of parasitisation, host feeding, developmental time, adult emergence and female sex ratio of the parasitoid Aphelinus abdominalis were evaluated when different host stages of N. ribisnigri (1st, 2nd, 3...
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Article
Intraguild predation by the generalist predator Orius majusculus on the parasitoid Encarsia formosa
Intraguild predation of Orius majusculus (Reuter) (Heteroptera: Anthocoridae) on Encarsia formosa (Gahan) (Hymenoptera: Aphelinidae), both natural enemies of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), w...
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Article
No transmission of Potato spindle tuber viroid shown in experiments with thrips (Frankliniella occidentalis, Thrips tabaci), honey bees (Apis mellifera) and bumblebees (Bombus terrestris)
Experiments were carried out to investigate whether Potato spindle tuber viroid (PSTVd) can be transmitted intra- and inter-species from infected Solanum jasminoides to non-infected S. jasminoides and S. esculent...
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Article
Assessment of the biological control capability of Hippodamia variegata (Col.: Coccinellidae) using functional response experiments
Lady beetles are among the most successful predators of aphids in different environments. The functional responses of different life stages of Hippodamia variegata (Goeze) towards cotton aphids were examined in t...
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Article
Estimating development and temperature thresholds of Scolothrips longicornis (Thysanoptera: Thripidae) on eggs of two-spotted spider mite using linear and nonlinear models
The development rate of the predatory thrips, Scolothrips longicornis Priesner, fed on Tetranychus urticae Koch was determined at 15, 20, 26, 30, 35, and 37°C. No development occurred at 40°C. The total developme...
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Article
Predation capacity and prey preference of Chrysoperla carnea on Pieris brassicae
The predation capacity and prey preference of larvae of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) on eggs or larvae of Pieris brassicae (Linnaeus) (Lepidoptera: Pieridae) in ...
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Article
Odour-mediated responses of a predatory mirid bug and its prey, the two-spotted spider mite
It has been shown that many natural enemies of herbivorous arthropods use herbivore induced plant volatiles (HIPVs) to locate their prey. Herbivores can also exploit cues emitted by plants infested with hetero...
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BIOCONTROL IN PROTECTED CROPS: IS LACK OF BIODIVERSITY A LIMITING FACTOR?
Protected crops are a dives entity, ranging from crops grown under very simple plastic or mesh construction to very high-tech glasshouse structures, which have a very high degree of automatisation of e.g. clim...
