This study was conducted between 2019-2020 in Erzincan Province Çayırlı District to reveal beneficial and harmful species the biology of Spodoptera exigua (Hbn.) (Lepidoptera: Noctuidae), which is an important pest sugar beet cultivation area. The area designated as “Erzincan Beet Production Area” (EÇPÜA) has many areas. production obtained from these fields changes according years, but also no...

Exotic species are widely accepted as a leading cause of biodiversity decline. Lady beetles (Coccinellidae) provide an important model to study how competitor introductions impact native communities since several native coccinellids have experienced declines that coincide with the establishment and spread of exotic coccinellids. This study tested the central hypothesis that intraguild predation...

A field study was conducted to test the marking efficiency of broadcast spray applications of protein marks on stationary (represented by cadavers) and free-roaming lady beetles Hippodamia convergens Gu erin-M eneville that were strategically placed in blooming alfalfa plots. The marks tested included three different concentrations of egg albumin from chicken egg white, casein from bovine milk ...

The Old World ladybird Coccinella septempunctata has rapidly established itself as an abundant, widespread species throughout North America. Overwintering individuals of this species, and of native ladybirds, were collected from early season alfalfa in northern Utah during the period of initial establishment of the invader (1989 to 1999), and were measured for body size. Adult body size can var...

Generalist predator guilds play a prominent role in structuring insect communities and can contribute to limiting population sizes of insect pest species. A consequence of dietary breadth, particularly in predatory insects, is the inclusion of low-quality, or even toxic, prey items in the predator's diet. Consumption of low-quality prey items reduces growth, development, and survival of predato...

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many of insects have re-mating behavoiur during their reproductive period. the re-mating phenomenons have been observed in many ladybirds, too. in current study, the change of proportion of male to female (sex ratio) was used in order to changing of possibility and times of re-mating in hippodamia variegata. in previous studies it has been indicated that males make up about 50% of this predator...