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The effects of thirteen species of aphids on some life history parameters of the ladybird Coccinella septempunctata
TLDR
The prediction of impact of C. septempunctata in an aphid infested crop dependson the food specificity of the predator and foreffective mass rearing of the studiedcoccinellid species is needed.
Alien vs. Predator - the native lacewing Chrysoperla carnea is the superior intraguild predator in trials against the invasive ladybird Harmonia axyridis
TLDR
The first aphidophagous insect is reported - lacewing Chrysoperla carnea (Stephens) (Neuroptera Chrysopidae) - which is a superior intraguild predator, despite its smaller size, over the aggressive invasive ladybird H. axyridis in larval stage.
The effect of aphid prey quality on searching behaviour of Adalia bipunctata and its susceptibility to insecticides
TLDR
Adult A. bipunctata fed an unsuitable prey, A. fabae, for 2 weeks were 2–4 times more susceptible to pyrethroid insecticides and insect growth regulators than those fed a suitable prey, P. humuli.
Transgenic resistance of Bulgarian potato cultivars to the Colorado potato beetle based on Bt technology
TLDR
Potentially commercial potato lines highly resistant to Colorado potato beetle are generated using Bt technology that may have a profound impact on development of sustainable agriculture in Bulgaria.
Effect of Air Humidity on Sex Ratio and Development of Ladybird Harmonia axyridis (Coleoptera: Coccinellidae)
TLDR
Survival rate, larval developmental time, and adult mass were all differently influenced by air humidity depending on the food type, and in individuals fed with aphid Acyrthosiphon pisum there was a trend for better survival, shorter development, and higher mass gained at higher humidity.
Biodiversity of Epigeic Spiders in Genetically Modified (Bt) and Conventional (non-Bt) Potato Fields in Bulgaria
TLDR
The hypothesis of similarity of the epigeic spider's fauna in Bt and non-Bt potato fields has been confirmed and no negative effect of Bt potatoes on spiders could be detected.
Suitability of Gramineous Plants as Food for the Phytophagous Ladybird Cynegetis impunctata L. (Coleoptera: Coccinellidae)
TLDR
Six gramineous plant species, including cereal crops, were used as food for the ladybird beetle Cynegetis impunctata in a laboratory experiment, and five of them were suitable for larval development, while Phalaris arundinacea L. was unsuitable as food.
Genetically modified potatoes expressing Cry 3A protein do not affect aphidophagous coccinellids
Abstract:  Field investigations showed that genetically modified Bacillus thuringiensis (Bt) potato plants (‘New Leaf’ expressing Cry 3Aa toxic protein) were not damaged by the Colorado potato beetle
Cold hardiness of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) from central and southern Europe.
TLDR
The Bulgarian bugs retained lower cold hardiness regardless of acclimation to harsh field conditions in the Czech Republic, and the interpopulation difference is therefore a heritable character representing an adjustment to local climates.
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