Browsing VOL 22 *No.4 by Title
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Cacopsylla picta (costalis Flor, 1861) (Förster, 1848) (Homoptera, Psyllidae) a New Jumping Plant Louse Species on Apples in Serbia
Until recently only one jumping plant louse species Cacopsylla mali Schm. has been described on apples in domestic literature. Over the past few years investigations of Psylloidea on apples in Serbia have proved incidences ... -
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 ... -
Determination of Resistance Levels of Myzus persicae (Sulzer) by Biochemical Methods
Peach/potato aphid Myzus persicae (Sulzer) has developed three mechanisms of resistance: overproduction of one or two closely related carboxylesterases (E4 and FE4), production of modified acetylcholinesterase (MACE and ... -
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 ... -
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 ... -
Uncinula necator (Schow) Burr., the Causal Agent of Grape Powdery Mildew: Role of Winter and Early Spring Treatments
Three preceding articles (Miladinoviæ et al., 2007a, 2007b, 2007c) covered the state-ofthe art on the pathogen and disease, the source of inoculum and pathogen infection potential, and the microclimatic conditions of ...