Labeo rosae, a species with a native range in Southern Africa, was discovered in the Congo basin by re-identification of two museum specimens previously identified as Labeo mesops. The occurrence of this species in the upper Congo implies a range extension of the species of more than 1000 km. Although the species' distribution is mirrored by that of some other Cypriniformes, its occurrence in t...

the life table parameters of macrosiphum rosae l. (hemiptera: aphididae) on five vermicompost-tea (tea-compost) concentrations (20, 40, 60, 80 and 100%) and control treatment (0%) on rosa hybrida l. were determined under laboratory conditions. there were significant differences among pre-imaginal period and adult longevity of the aphid on the five teacompost concentrations. the highest mortalit...

The life table parameters of Macrosiphum rosae L. (Hemiptera: Aphididae) on five vermicompost-tea (tea-compost) concentrations (20, 40, 60, 80 and 100%) and control treatment (0%) on Rosa hybrida L. were determined under laboratory conditions. There were significant differences among pre-imaginal period and adult longevity of the aphid on the five teacompost concentrations. The highest mortalit...

The ability of aphids to detect and find sieve tubes suggests that aphids receive cues for sieve-tube recognition by taking samples. Specific natural conditions such as pH value, sugar species and concentration, viscosity, and oxygen pressure may enable sieve-tube detection. We tested the preference of Megoura viciae and Myzus persicae for potential plant-borne orientation parameters in artific...

Süs bitkilerinin içerisinde önemli bir yere sahip olan gülün en zararlılarından birisi de Gül yaprak biti Macrosiphum rosae (L.) (Hemiptera: Aphididae)’dir. M. rosae, bitki öz suyunu emerek beslenir. bitleri, koloniler halinde sürgün, ve tomurcuklarda bulunur. tomurcuk yeni sürgünlerin büyümesini geciktirmektedir. Bu nedenle bu zararlılara karşı genellikle kimyasal mücadele uygulanmaktadır. Anc...

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...