geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Ecological sensitivity of some acaricides on the predators Panonychus ulmi Koch


, : Ecological sensitivity of some acaricides on the predators Panonychus ulmi Koch. Zastita Bilja, 392: 183-195

The population dynamics of the development of Panonychus ulmi Koch. and of its predators was followed from April to October. There has been established the presence of several predatory species, such as: representatives of the family Coccinellidae (Stethorum punctillum Weise), Anthocoridae (Orius vicinus Rib.) Phytoseidae (Amblyseius andersoni Chant), development and further reproduction of which are closely connected with the development of the population of P. ulmi as well as of Chrysopidae (Chrysopa carnea Steph) which is polyphagous. On the basis of the number of mobile forms of P. ulmi were determined their critical number (threshold of noxiousness) on a leaf and the term of application of acaricides. The obtained results indicate that Acarex 60 manifested partial toxicity to S. punctillum, O. vicinus, and a complete selectivity to Ch. carnea. It is not ecologically selective to the predator A. andersoni. Neoron 500 is ecologically selective to S. punctillum and Ch. carnea, and completely selective to O. vicinus. It is not selective to A. andersoni, where it causes total mortality as early as after 72 hours. Omite 57E shows a complete ecological selectivity to S. punctillum, O. vicinus and Ch. carnea. This preparation manifested a partial selectivity to the predator A. andersoni where there survive 20 p.c., which is an important factor in the use of these methods in the protection of apple trees against this pest.

US$29.90


Other references

Greene David Lee; Sibley Lynn, 1986: Neandertal pubic morphology and gestation length revisited. Current Anthropology 27(5): 517-518

Krasnoshchekov, S.V.; Isayeva, E.V.; Stepanov, N.F., 2012: Numerical-analytic implementation of the higher-order canonical Van Vleck perturbation theory for the interpretation of medium-sized molecule vibrational spectra. Anharmonic vibrational states of semirigid polyatomic molecules are often studied using the second-order vibrational perturbation theory (VPT2). For efficient higher-order analysis, an approach based on the canonical Van Vleck perturbation theory...

Doherty, J.A.; Reichley, R.M.; Noirot, L.A.; Resetar, E.; Hodge, M.R.; Sutter, R.D.; Dunagan, W.Claiborne.; Bailey, T.C., 2004: Monitoring pharmacy expert system performance using statistical process control methodology. Automated expert systems provide a reliable and effective way to improve patient safety in a hospital environment. Their ability to analyze large amounts of data without fatigue is a decided advantage over clinicians who perform the same tasks. As...

Saif, M.Wasif.; Berk, G.; Cheng, Y-Chi.; Kinsella, T.James., 2007: IPdR: a novel oral radiosensitizer. IPdR (5-iodo-2-pyrimidinone-2'-deoxyribose) is a novel orally available, halogenated thymidine (TdR) analog and is a potential radiosensitizer for use in human tumors, such as rectal, pancreas, sarcoma and glioma tumors. IPdR is a prodrug tha...

Kostiakova, A.I., 1953: Qualitative determination of quinine in pharmacopeia preparation by fluorescent method. Aptechnoe Delo 2(3): 17-19

Novak, B.T.son, J., 1997: Modeling the control of DNA replication in fission yeast. A central event in the eukaryotic cell cycle is the decision to commence DNA replication (S phase). Strict controls normally operate to prevent repeated rounds of DNA replication without intervening mitoses ("endoreplication") or initiat...

Ablin, R.J.; Jagodzinski, R.V.; Prox, C.; Williams, R.W.; Gonder, M.J.; Soanes, W.A., 1976: Cryosurgery of the monkey (macaque) prostate. I. Humoral immunologic responsiveness following cryostimulation. Cryobiology 13(1): 47-53

Mchedlishvili, G.I.; Beritashvili, N.I.; Lominadze, D.G., 1992: Quantitative estimation of erythrocyte aggregability in human blood samples. Patologicheskaia Fiziologiia i Eksperimental'naia Terapiia: 50-51

Michalowicz, B.S.; Hodges, J.S.; Lussky, R.C.; Bada, H.; Rawson, T.; Buttross, L.Susan.; Chiriboga, C.; Diangelis, A.J.; Novak, M.John.; Buchanan, W.; Mitchell, D.A.; Papapanou, P.N., 2011: Maternal periodontitis treatment and child neurodevelopment at 24 to 28 months of age. Some maternal infections are associated with impaired infant cognitive and motor performance. Periodontitis results in frequent bacteremia and elevated serum inflammatory mediators. The purpose of this study was to determine if periodontitis treat...

London, M.R.; Libbey, N.P.ter; Shemin, D.G.; Chazan, J.A., 1994: Renal osteodystrophy and dialysis artifacts as indicators of identification. Evidence of rare disease may be useful in the identification of unknown remains. Osteodystrophy is a condition commonly associated with chronic renal failure. The presence of renal osteodystrophy and medical artifacts associated with the treatment...