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Untersuchungen zum Einfluß von Sonnenlicht auf das Schwärmverhalten von Borkenkäfern
With the aid of eletronic registration equipment and other experimental methods, it could be shown that the flight behaviour of spruce bark beetles to pheromone sources is strongly influenced by the
Labor-Versuche mit Neem-Samenextrakt zur Bekämpfung des Schwammspinners,Lymantria dispar L.
TLDR
The laboratory experiments showed that these concentrations suppress the development and prohibit the moultin of caterpillars and added test carried out under field conditions indicated that the activity of neem extract sprayed on oakleafs remained unchange after 12 days of application.
Zur Disposition von Raupenpopulationen verschiedener Herkünfte des Schwammspinners (Lymantria dispar; Lep., Lymantriidae) gegenüber einem Kernpolyedervirus
  • U. Skatulla
  • Biology
    Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 2005
TLDR
The susceptibility of the tested larvae populations to this virus was very different, this could be shown by the mortality and incubation-times (Lt50) of the observed populations.
Über die natürlichen Krankheiten der Frostspanner Operophthera brumata L. und Erannis defoliaria Clerck (Lep., Geometridae) im Spessart, Bayern
Studies of the host-parasite relationships in populations of larvae of the family Geometridae collected from forest stands in the Spessart-mountains (Bavaria, Germany) were conducted in 1977.Four
Untersuchungen zum Nahrungseintrag von Kohlmeisen in einem Gradationsgebiet der Kleinen Fichtenblattwespe (Pristiphora abietina Christ)
Using a modern data survey system combined with a videocamera for observation, it was possible to determine the percentage of sawfly larvac in breeding food of titmouse (Parus major) without
Untersuchungen zur Wirkung eines Kernpolyeder-Virus ausLeucoma salicis L. (Lep., Lymantriidae) auf einige Lymantriiden-Arten
  • U. Skatulla
  • Biology
    Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 1 March 1985
TLDR
The nun moth, Lymantria monocha, was less suspectible to the nuclear polyhedrosis virus; this could be shown by aid of the calculated values of the Lt50 and the LD50.
Versuche zur Bekämpfung der NonneLymantria monacha L. mit dem synthetischen Pheromon Disparlure
TLDR
Experimental trials were run to control the nun moth, Lymantria monacha, by trapping males with “Disparlure”, cis-7,8-epoxy-2-methyl-octadecane, a synthetic pheromone, in a pine forest near Schwabach/Franconia.
Untersuchungen zum Anflugverhalten des Kupferstechers (Pityogenes chalcographus L.) und einiger Beifänge an Pheromonfallen mit Hilfe eines neuartigen elektronischen Meßgerätes
TLDR
It could be shown that each of these species has a characteristical threshold of temperature for the beginning of its flight activity and also the day time had a great influence on the swarm activity of the investigated species.
Über die Wirkung des Entwicklungshemmers Dimilin auf Forstinsekten
  • U. Skatulla
  • Biology
    Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 1 October 1975
TLDR
The mortality of the phytophagous insects taking up the hormonoid by food reached 100% in all experiments and some problems are included in the longevity of the substance.
Erfolgreiche Versuche mit dem Entwicklungshemmer PH 60-40 zur Bekämpfung vonLymantria dispar L. undL. monacha L.
  • U. Skatulla
  • Biology
    Anzeiger für Schädlingskunde, Pflanzenschutz…
  • 1 February 1975
TLDR
Air applications of (1-(4-chlorophenyl)-3-(2,6-dfluorobenzoyl)-urea) a new insecticide of Philips-Duphar, Amsterdam, prohibiting the moulting of insect larvae, showed very good controlling potentials of gypsy moth and nun moth.
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