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Приказ резултата 61-70 од 111
Importance and research status of scale insects (Homoptera, Coccoidea) in Serbia / Značaj i istraženost štitastih vaši (Homoptera, Coccoidea) u Srbiji
(Univerzitet u Novom Sadu - Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad, 2008)
Scale insects are dangerous pests on fruit trees, forest and ornamental plants. Feeding on the aerial parts of the plant they cause growth delay, fruit lack, branch and trunk dessication. Faunistics of this group of insects ...
The first finding of Stelidota geminata (Say) (Coleoptera: Nitidulidae) on strawberry fruits in Serbia / Prvi nalaz Stelidota geminata (Say) (Coleoptera: Nitidulidae) na plodovima jagode u Srbiji
(Univerzitet u Novom Sadu - Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad, 2011)
In Serbia, Stelidota geminata is for the first time found in 2011, in strawberry plantations on ripe fruits. Specimens of this species and strawberry fruits damages are established during harvest (last decade of May till ...
Humus group and fractional composition of rendzina soil in Serbia / Grupni i frakcioni sastav humusa u rendzinama Srbije
(Unija bioloških naučnih društava Jugoslavije, Beograd, 2007)
Data on humus group and fractional composition in rendzina soils in Serbia acquired by the method of Pnomarieva and Plotnikova (PONOMAREVA and PLOTNIKOVA, 1968) are presented. The sites investigated in this study included: ...
Cereal aphids (Hemiptera : Aphidoidea) in Serbia: Seasonal dynamics and natural enemies
(Czech Acad Sci, Inst Entomology, Ceske Budejovice, 2008)
During 1989-2006 the number of live aphid, mummies, aphid specialist predators and their parasitoids in cereal fields in Serbia were recorded. S. avenae and M. dirhodum were the most common, both on wheat and rye crops. ...
Divergence of the local populations of St. John’s wort (Hypericum perforatum L.) based on leaf morphological traits / Divergentnost domaćih populacija kantariona (Hypericum perforatum L.) po morfoloskim osobinama lista
(Institut PKB Agroekonomik, Padinska skela, 2015)
The present study was conducted in order to analyze the divergence of the fourteen native populations of St. John’s wort (Hypericum perforatum L.) originating from different locations of Serbia based on six leaf morphological ...
Market as 'the invisible hand' or state interventionism as 'the visible hand' of economic policy / Tržište kao 'nevidljiva ruka' ili državni intervencionizam kao 'vidljiva ruka' ekonomske politike
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 2011)
This paper presents two mutually opposed aspects of the market as a regulatory mechanism in the economy. From the aspect of entrepreneurship, the free operation of 'invisible hand' encourage the successful, but limits and ...
Jumping plant-louse Cacopsylla (Hepatopsella) bidens (Šulc, 1907) (Hemiptera, Psyllidae) new pest on pear in Serbia / Lisna buva Cacopsylla (Hepatopsylla) bidens (Šulc, 1907) (Hemiptera, Psyllidae) nova štetočina kruške u Srbiji
(Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd, 2011)
The problem of jumping plant - lice, an important pest on pear, appeared in the middle of the twentieth century and represents a direct consequence of pear cultivation on large areas with intensive application of agrotechnical, ...
Bow-legged fir aphid Cinara curvipes (Patch) (Aphididae, Homoptera) new pest of Abies concolor in Serbia / Krivonoga jelina vaš Clnara curvipes (Patch) (Aphidide, Homoptera) nova štetočina dugoigličave jele u Srbiji
(Entomološko društvo Srbije, Beograd i Univerzitet u Beogradu - Biološki fakultet, 2002)
During 2001 and 2002 in Novi Sad, the presence of Cinara curvipes (Patch) was observed on several Abies concolor trees and on individual branches of Cedrus atlantica. The finding is very interesting as this species is ...
Armored scale insects (Hemiptera, Diaspididae) on berry fruit trees in Serbia / Štitaste vaši (Hemiptera, Diaspididae) na jagodastim voćkama u Srbiji
(Univerzitet u Novom Sadu - Poljoprivredni fakultet - Departman za zaštitu bilja i životne sredine "dr Pavla Vukasovića", Novi Sad, 2012)
The most important scale insects on berry fruit trees in Serbia are Aulacaspis rosae Bouche, Epidiaspis leperii Signoret, Lepidosaphes ulmi Linnaeus, Pseudaulacaspis pentagona Targ. & Tozz., Diaspidiotus perniciosus Comstock ...
Models of financing the co-operatives / Modeli finansiranja zadruga
(Ministarstvo finansija Republike Srbije, Beograd, 2018)
Co-operative organizations in Serbia are facing a relatively unfavourable situation and limited opportunities fo r creating benefits for their members. One o f the obstacles to a significant contribution to the achievement ...