Browsing 2007. by Issue Date
Now showing items 1-20 of 30
-
Effectiveness of Spirodiclofen in the Control of European Red Mite (Panonychus ulmi) on Apple and Pear Psylla (Cacopsylla pyri)
The effectiveness of spirodiclofen, an acaricide and insecticide with a novel mode of action, in protecting apple from the European red mite (Panonychus ulmi) and pear from pear psylla (Cacopsylla pyri) was tested in ... -
Determination of Copper-Based Fungicides by Flame Atomic Absorption Spectrometry Using Digestion Procedure with Sulfuric and Nitric Acid
Copper-based fungicides can be effectively digested by treatment with a mixture of concentrated sulfuric and nitric acid in exactly 15 minutes for the rapid determination via copper using flame atomic absorption spectrometry ... -
Pesticides in Soil: Effects on Microorganisms
Since their discovery to the present day, pesticides have been an inevitable segment of agricultural production and efforts have been made to synthesize compounds that would share a required efficacy along with selectivity, ... -
Uncinula necator (Schow) Burr., the Causal Agent of Grape Powdery Mildew: Economic Impact, Epidemiology and Control
The article is an overview of what we know at present about the patogen Uncinula necator and the disease powdery mildew of grapevine, i.e. its economic status, inoculum source, microclimate conditions, vine susceptibility ... -
Uncinula necator (Schow) Burr., the Causal Agent of Grape Powdery Mildew: Infection Potential and Microclimate
Microclimate in Podgorica vineyards and its effect on the formation, maturing and rupturing of cleistothecia, and disease outbreak, was studied. An analysis of collected data on minimum and maximum temperatures and ... -
Sensitivity of Cladobotryum spp., a Pathogen of the Button Mushroom (Agaricus bisporus), to Some Fungicides
Thirteen isolates of Cladobotryum spp., isolated from diseased fruiting bodies of Agaricus bisporus, sampled from mushroom farms in Serbia during 2003-2006, were studied. Sensitivity to several selected fungicides was ... -
Efficacy of Strobilurin-related and Multi-site Fungicide Mixtures Against Apple Scab
The efficacy of several fungicide mixtures in controlling Venturia inaequalis in apple was evaluated in field trials. The efficacies of Flint Plus (trifloxystrobin + captan) and Tercel (pyraclostrobin + dithianon) in ... -
Methods of Imazethapyr Extraction from Soil and Cleaning up by Solid Phase Extraction
The aim of this work was to optimize the determination methods of imazethapyr residues in soil using HPLC with DAD and C 18 (Hypersil ODS, 5 ìm, 2.0 x 250 mm) columns and to find the most appropiate solvent for imazethapyr ... -
First Report of Tumorigenic Agrobacterium radiobacter on Raspberry in Serbia
During the spring of 2003, gall symptoms on the roots and crowns of young raspberry plants cv. Vilamette were observed near Valjevo. Phytopathogenic bacteria were isolated from diseased plant samples. Based on the ... -
Adaptive Potential for the Invasion of Novel Host Plants in the Bean Weevil: Patterns of the Reproductive Behavior in Populations That Used Different Host Plants
The goal of this work was to examine interpopulation patterns in the reproductive behavior of populations of bean weevil (Acanthoscelides obtectus Say; Coleoptera: Bruchidae) that had different levels of specialization ... -
The Effects of Pollen on Serum Parameters, and Liver and Kidney Tissues of Rats
The objective of this study was to investigate any positive effects or possible side effects of the use of pollen. Mature male rats were fed pollen of three different plant sources (Trifolium spp., Raphanus spp. and ... -
Biology and Harmfulness of Unaspis euonymi (Comstock) in the Area of Belgrade
Unaspis euonymi (Comstock) (Homoptera: Diaspididae) is a very dangerous pest of Euonymus spp. Numerous scale colonies and a high level of plant infestation provoke drying of leaves, branches and whole plants. As a result ... -
Effects of Maize Density and Sowing Pattern on Weed Suppression and Maize Grain Yield
Plant competition in its basic sense can be defined as competition for resources such as light, water and nutrients. The intensity of crop competition, especially competition of row crops such as maize, mostly depends ... -
Psyllopsis fraxinicola Förster (Homoptera: Psyllidae), a New Ash Tree Pest in Serbia
During investigation of jumping plant lice in Serbia, the presence of Psyllopsis fraxinicola was registered on different ash tree species (F. excelsior L., F. angustifolia Vahl.) in a few localities. Psyllopsis fraxinicola ... -
Headspace Solid Phase Microextraction in Pesticide Residues Analysis: 1. Optimisation of Extraction Conditions
The method of headspace solid phase microextraction (HS/SPME) was successfully used in a simultaneous multicomponent analysis of hexachlorobenzene (HCB), tefluthrin, heptachlor, aldrin, chlorpyrifos, fenthion and bifenthrin ... -
Efficacy of Rodent Control in Alfalfa and Wheat Crops Using Chemical and Natural Rodenticides
Biological efficacy of chemical and natural rodenticides in controlling rodents in alfalfa and wheat crops was investigated. The experiment was set up using a randomized block design with four replicates and 400 m2 plots ... -
Clavibacter michiganensis subsp. michiganensis, Bacterial Canker of Tomato: 2. Comparison of the Effectiveness of Extraction Procedures and Sensitivity of Methods for Detection in Tomato Seeds
Two seed extraction procedures, used for detection of Clavibacter michiganensis subsp. michiganensis (Cmm) in artifficially infested tomato seed lots, were evaluated. A comparison of the efficiency of pathogen detection ... -
The Effects of Spirodiclofen on Reproduction of Two-spotted Spider Mite (Tetranychus urticae Koch)
Laboratory bioassay was conducted to evaluate the effects of spirodiclofen on the survival, fecundity and fertility of two-spotted spider mite (Tetranychus urticae Koch) females treated as 3-days old adults with a series ... -
First Report of Tumorigenic Agrobacterium radiobacter on Raspberry in Serbia
During the spring of 2003, gall symptoms on the roots and crowns of young raspberry plants cv. Vilamette were observed near Valjevo. Phytopathogenic bacteria were isolated from diseased plant samples. Based on the ... -
Biological Traits of Botrytis cinerea Pers. Isolates Differently Sensitive to Dicarboximides
A study of biological characteristics of both field and laboratory isolates revealed that highly resistant isolates were morphologically different from their original wild types. The majority of them were less pathogenic ...