Browsing VOL 25 *No.1 by Title
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Effects of Sublethal Doses of Contact Insecticides on Offspring Production of Different Granary Weevil Populations
The effects of prior contact of granary weevil (Sitophilus granarius L.) parents from a laboratory population, a Belgrade Port population (selected with LD70 pirimiphos-methyl) and a Bijeljina population (selected with ... -
Mite Pests in Plant Crops – Current Issues, Inovative Approaches and Possibilities for Controlling Them (1)
In the middle of the last century, mites moved into the focus of attention as pests relevant to agriculture, forestry and landscape horticulture, presumably in direct reaction to the “green revolution” that involved plant ... -
Naturally-Occurring Entomopathogenic Fungi on Three Bark Beetle Species (Coleoptera: Curculionidae) in Bulgaria
Bark beetles (Coleoptera: Curculionidae: Scolytinae) belong to one of the most damaging groups of forest insects and the activity of their natural enemies – pathogens, parasitoids, parasites or predators suppressing their ... -
Phytophthora Root and Crown Rot on Apples in Bulgaria
Phytophthora is a genus of Oomycota responsible for some of the most serious diseases with great economic impact (Judelson and Blanco, 2005). While 54 species were found in the 20th century (Erwin and Ribeiro, 1996) ... -
Possible Influence of MLP Regulators in Foliage of Host Species on Invasion of Phyllophagous Insects
On the northern border of the Gypsy moth area (Lymantria dispar L., 1758), caterpillars are reorient to exogenous regulators of membrane lipid peroxidation in connection with repeated cold periods during feeding. In case ... -
Predators and Parasitoids of Cacopsylla pyri (L.) (Hemiptera: Psyllidae) in Serbia
The presence of C. pyri and its natural enemies was studied in both treated and untreated pear orchards in Serbia from 2005 to 2009. Five parasitoid and 21 predator species were identified as present on a considerable ... -
Susceptibility of Tetranychus urticae Koch. (Acari: Tetranychidae) to Isolates of Entomopathogenic Fungus Beauveria bassiana
Bioassays with five isolates of the entomopathogenic fungus Beauveria bassiana (Bals.- Criv.) Vuillemin were conducted under laboratory conditions with a goal to estimate their virulence to the two-spotted spider mite ... -
What Can Nutritional Indices Tell Us about Gypsy Moth Larvae (Lymantria dispar L.)?
In the submitted work, important factors for planning out experiments for studying nutritional indices, whose choice may affect research results, and opportunities for using the indices of feeding to study the ecology ...