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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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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) ...