For maternally transmitted microbes, a female-biased host sex ratio is of reproductive advantage. Here we found a strong female bias in a field population of the green lacewing, Mallada desjardinsi (Insecta; Neuroptera). This bias was attributed to the predominance of individuals harboring a maternally inherited male-killing bacterium that was phylogenetically closely related to the plant-patho...

the green lacewing, chrysoperla carnea (stephens) is one of the important predators of many pests including helicoverpa armigera (hübner) and tetranychus urticae koch. in insectaries, the larvae of this predator are mainly reared on anagasta kuehniella egg. in this research, biological and life table parameters of c. carnea in feeding on a. kuehniella egg as a laboratory prey and two natural pr...

Bioinsecticides based on Bacillus thuringiensis (Bt) are widely used to control agricultural pests. However, there concerns about their impact non-target organisms, with for example, the green lacewing Ceraeochrysa claveri, a polyphagous predator important value in biological of insect pests agroecosystems. This study aimed analyse effects Agree® bioinsecticide (containing Bt serovar aizawai GC...

Crops transformed to express Bacillus thuringiensis (Bt) toxins can cause close to 100% mortality of certain target pest species. This study assessed the effect of target pest reduction on the predatory insect Chrysoperla carnea (Stephens) in the presence of alternative prey. Numbers of lacewings recovered from Bt oilseed rape (cultivar Oscar, event O52) did not differ significantly from number...

Habitat management is a conservation biological control technique which helps to reduce the use of inputs in olive orchards and also improve sustainability. Recent studies have pointed out that vegetation cover, provides food resources, as well reproduction refuge sites, increases Chrysopidae populations diversity. However, little known about effect woody semi-natural habitats (SNHs) orchards. ...