as the host plants based on their physical and chemical characteristics can affect virulence of microbial control agents on the target pest and its natural enemies, therefore in the current study, the virulence of beauveria bassiana tv isolate at concentration 107 conidia/ml was evaluated against t. urticae female adults, on three different host plants; tomato, cucumber and strawberry. spray to...

a suitable diet and oviposition substrate are two basic needs for successful mass rearing of orius spp. and this may reduce their production costs. the effect of various foods containing eggs of ephestia kuehniella and sitotroga cerealella with various pollens were investigated on the biological parameters of o. albidipennis in the laboratory. moreover, survival, hatching rate and fecundity of ...

citrus mealy bug, planococcus citri (risso)is one of the most common and well knownpest insects of ornamentals. coleus, solenostemon scutellarioides (l.)codd is a suitable host ofthe mealybugs. mealybug destroyer, cryptolaemus montrouzieri mulsant (coleoptera:coccinellidae) is a polyphagous predatory coccinellid, employed in biological controlprograms against citrusmealy bug. the present work w...

the functional response is an important characteristic of predator–prey interactions that determinate which predator species or stage classes of predator is the most effective for pest control. host plant morphological characteristics are the effective factors on predator’s functional response. the objective of this study was to determine whether differences in trichome density of wheat cultiva...

predatory damsel bug, nabis pseudoferus remane has a high density in the alfalfa fields and feeds on different types of prey. in this study, biological properties and life table statistics of n. pseudoferus by feeding on melon aphids have been determined under controlled conditions (at 25±1˚c, 60±10% relative humidity and under a photoperiod of 16h light/ 8h dark). data analysis carried out bas...

Abstract The bug Orius similis Zheng is a native generalist predator of insect pests in southern China. fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), notorious defoliator that now an economically important pest throughout To investigate the ability O. to control FAW, we evaluated predatory capacity, behavior, and functional response with respect FAW their olfactory response. Both fem...

the predatory bug orius niger wolff is an important predator of the onion thrips, thrips tabaci lindeman in the potato fields of ardabil region. in this study, preference for prey, predatory rate, body size, and some life history parameters of o. niger were studied on seven potato genotypes (including savalan, agria, morene, kondor, diamant, pi397082-2, and pi397097-2)infested to t. tabaciunder...

conclusions while amh receptor expression was higher in experimental rats, their serum concentrations of amh were decreased. further researches with greater sample sizes and measurement of bioactive forms of hormones are recommended to confirm the findings of this study. background anti-mullerian hormone (amh) levels reflect the number of small antral follicles in ovaries and expression changes...

This study was conducted to determine the fecundity, oviposition rhythm and clutch number variations of overwintering adult green shield bug (GSB) Palomena prasina (Hemiptera: Pentatomidae) in cages hazelnut. The adults GSB collected from hazelnut orchards were taken into on selected branches, one pair placed each cage carried out with 20 repetitions. Daily observations made during April-June (...

This study examined the effects of different life stages (first, second, third, fourth, and five instars; adult females and adult males) and feeding regimes (starved and blood fed) on the active movement activity of the tropical bed bug, Cimex hemipterus (F.), under mixed-stage conditions. We used an extended arena made from Tygon tube coils and observed the movement frequency and movement dist...