two species of tachinidae, masicera sphingivora (robineau & desvoidy) and bithia glirina (rondani), were collected from pupae and larvae of hyles euphorbiae (l.) (lep.: sphingidae) and chamaesphecia schizoceriformis kolenati (lep.: sesiidae) respectively. masicera sphingivora belongs to the subfamily exoristinae and has mostly been reared from the larvae of sphingidae, especially the genus hyle...

In this study, functional and numerical response tests, which are important components in the selection of biological control agent, were carried out. trials, amount food consumed, attack rate (a) handling time (Th) calculated for each developmental period, depending on number preys given after 24 hours. The obtained results evaluated with Holling. experiments, development predator insect was e...

Natural insecticides often do not provide a strong knock-down effect and have lower efficacy than synthetic pesticides. For an effective application of natural insecticides, it is essential to know the product’s mode action in detail. The commercial neem [Azadirachta indica A. Juss (Meliaceae)] product NeemAzal-T/S its influence on stage-specific mortality, development, reproduction rose aphids...

many powdery mildew fungi occur as anamorphic state on different host plants in guilan province, iran. the species have usually been identified as oidium spp. in order to identify teleomorphic species using anamorphic characteristics and host range, several infected plant specimens were collected from around guilan province during 2004-2011. based upon  the  results of the study 25 species were...

The predator Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) is a polyphagous species that has, among its wide range of acceptable prey, the aphid Macrosiphum rosae (Linnaeus, 1758) (Hemiptera: Aphididae), an important pest rose plants. We assessed consumption nymphs and adults M. by C. larvae, predatory efficiency, larval survival under different predator:prey ratios, densities aph...