Browsing 3. Scientific Journals / Naučni i stručni časopisi by Title
Now showing items 129-148 of 405
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Effect of Weeds and Some Methods for their Control in Seed Production Stands of Sainfoin (Onobrychis viciifolia Scop.)
During the 2007-2009 period in the experimental field of the Institute of Forage Crops a study was conducted with the purpose of investigating the effect of weeds and some methods for their control in seed production ... -
Effectiveness of Azadirachtin (NeemAzal-T/S) in Controlling Pear Psylla (Cacopsylla pyri) and European Red Mite (Panonychus ulmi)
Here we present the results of field trials conducted in Serbia to evaluate the effectiveness of a neem-based product, NeemAzal-T/S (containing azadirachtin-A as its active ingredient in the form of an emulsifiable ... -
The effectiveness of potassium phosphite and captan mixture in controlling Venturia inaequalis in apple orchards
Venturia inaequalis is a common apple disease in Serbia and its intensity depends on weather conditions. The most successful method of combating apple scab is to use a lower dose of an active ingredient and increase its ... -
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 ... -
Effects of 50°C temperature on Sitophilus granarius (L.), Sitophilus oryzae (L.) and Sitophilus zeamais (Motsch.)
Adults of laboratory populations of granary weevil (S. granarius), rice weevil (S. oryzae) and maize weevil (S. zeamais) were exposed at the temperature of 50°C to determine lethal time (parameters LT20, LT50 and LT99) ... -
Effects of Bioinsecticides in Control of Greenhouse Whitefly (Trialeurodes vaporariorum Westwood) on Tomato
The effects of commercial products of entomopathogenic fungus Beauveria bassiana (Naturalis; 0.1%, 0.2% and 0.3%), azadirachtin (NeemAzal T/S; 1% and 2%) and oxymatrin (KingBo; 0.1% and 0.2%) in the control of greenhouse ... -
Effects of Chemical Thinning of Sour Cherrry Flowers
The paper presents the results of chemical thinning of sour cherry flowers of the Šumadinka and the Čačanski rubin cultivars. The treatments were performed in the full flowering phase, using 0.0025% concentration ... -
Effects of Crop Density and Herbicide Application on Floristic Composition and Structure of Maize Weed Community
The distribution of weeds in maize hybrids grown in different crop densities with and without herbicide application was observed in the present study. The floristic composition and structure of weed community were estimated ... -
Effects of Crop Density on Root Yield and Quality of Sugar Beet Cultivars Grown on the Soil Infested and Uninfested by Rhizomania
During a two-year period (1996-1997) we conducted studies on the effects of crop density on root yield and quality of sugar beet cultivars, susceptible and tolerant to rhizomania, grown on the soil infested and uninfested ... -
Effects of Different Essential Oils on the Acceptability and Palatability of Cereal-Based Baits for Laboratory Mice
The aim of our study was to investigate the possibility of application of essential oils as additives in cereal-based rodenticide baits, at rates which prevent mould development and are applicable in humane medicine. ... -
Effects of Essential Oils from Thyme, Cinnamon and Clove on Mycelial Growth of Colletotrichum acutatum
Effects of the volatile phase of thyme, cinnamon and clove essential oils on Colletotrichum acutatum were investigated. Mycelial disc was placed in the center of the Petri dish (V=66 ml) containing PDA. Different volumes ... -
Effects of Insecticides on Strawberry Aphid Chaetosiphon fragaefolii (Cockerell) on Resistant and Susceptible Strawberry Genotypes
Strawberry aphid, Chaetosiphon fragaefolii (Cockerell), is the most important vector of strawberry virus. Breeding of genotypes resistant to this pest is an important preventive control measure, which can be compatible ... -
Effects of Irrigation on Yield and Composition of Principal Elements of Nutrients in Maize-Growing Soil
Extensive organic production under irrigation conditions requires greater amounts of NPK fertilisers. Furthermore, the mobility of fertilisers, especially of nitrogen, is greater under the increased soil moisture content, ... -
The Effects of Kingbo Biopesticide on Tetranychus urticae Koch Female Adults
Toxic and sublethal effects of the biopesticide Kingbo (oxymatrine 0.2% + psoralen 0.4%) on female adults of two-spotted spider mite (Tetranychus urticae Koch) were investigated in two laboratory bioassays. The assays ... -
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 ... -
Effects of Metribuzin on the Activity of Some Enzymes in Soil
Eeffects of metribuzin on the activity of some enzymes in soil was investigated. Trials were set up in the laboratory on a clay loam soil. Metribuzin was applied at 12.0, 24.0 and 60.0 mg/kg soil rates and soil samples ... -
The effects of monitoring the abundance and species composition of aphids as virus vectors on seed potato production in Serbia
Aphids are the most important vectors of potato viruses during the crop’s growing season. The most widespread and damaging viruses, the potato virus Y and potato leaf roll virus, are transmitted by aphids in non-persistent ... -
Effects of Organic Matter and Clay Content in Soil on Pesticide Adsorption Processes
The effect of organic matter and clay content on the adsorption of atrazine, acetochlor, clomazone, pendimethalin and oxyfluorfen in soil samples was studied. In order to determine whether and to what degree different ... -
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 ... -
Effects of salicylic acid elicitor against aphids on wheat and detection of infestation using infrared thermal imaging technique in Ismailia, Egypt
Wheat (Triticum sativum L.) is one of the most important cereal crops in Egypt. Insect pests, such as aphids, are major threats in terms of yield reduction. Induced resistance in wheat using salicylic acid as a foliar ...