Pérez Hidalgo Nicolás

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The oriental aphid Schizaphis piricola (Matsumura) is recorded for the first time in Europe, on the ornamental pear tree Pyrus calleryana in landscaped areas in Madrid (Spain). Data on the morphology of the forms on primary host (apterous and alate fundatrigeniae and fundatrices), and their biology and distribution are given. The keys for identifying(More)
Immunoreactive species extracted from cultured pancreatic fetal islets of rat have been immunoprecipitated with anti-CRF (corticotropin-releasing factor) antibody and labeled with 125I. This material was analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. These immunoreactive species corresponded to CRF-like material detected by(More)
The beehive as a quantitative monitor of pesticide residues applied over a soybean crop was studied through a semi field experiment of controlled exposure of honey bees to pesticides in macro tunnels. The distribution within exposed beehives of pesticides commonly used in soybean plantation, was assessed. Residue levels of insecticides in soybean leaves,(More)
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